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VersaLogic Ocelot (VL-EPMs-21) SUMIT on PC/104 SBC Reference Manual
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Reference
Manual
DOC. REV. 4/3/2013
Intel Atom-based SBC with
Ethernet, Video, SUMIT, and
PC/104 interface
WWW.VERSALOGIC.COM
12100 SW Tualatin Road
Tualatin, OR 97062-7341
(503) 747-2261
Fax (971) 224-4708
Copyright © 2013 VersaLogic Corp. All rights reserved.
Notice:
Although every effort has been made to ensure this document is error-free, VersaLogic makes no representations or warranties with respect to this product and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose.
VersaLogic reserves the right to revise this product and associated documentation at any time without obligation to notify anyone of such changes.
PC/104 and the PC/104 logo are trademarks of the PC/104 Consortium.
The SUMIT name and logo are trademarks of the Small Form Factor Special Interest Group.
VL-EPMs-21 Reference Manual ii
Product Release Notes
Rev 1.0 Release
Initial commercial release.
Support
The VL-EPMs-21 support page, at
http://www.versalogic.com/private/ocelotsupport.asp
, contains additional information and resources for this product including:
Reference Manual (PDF format)
Operating system information and software drivers
Data sheets and manufacturers’ links for chips used in this product
Photograph of the circuit board
BIOS information and upgrades
Utility routines and benchmark software
This is a private page for VL-EPMs-21 users that can be accessed only by entering this address directly. It cannot be reached from the VersaLogic homepage.
The VersaTech KnowledgeBase is an invaluable resource for resolving technical issues with your
VersaLogic product.
VersaTech KnowledgeBase
VL-EPMs-21 Reference Manual iii
Contents
Introduction ..................................................................................................................... 1
Description .......................................................................................................................... 1
Features and Construction ..................................................................................... 1
Technical Specifications ..................................................................................................... 2
VL-EPMs-21 Block Diagram ............................................................................................. 3
RoHS Compliance .............................................................................................................. 4
About RoHS ........................................................................................................... 4
Warnings ............................................................................................................................. 4
Electrostatic Discharge .......................................................................................... 4
Lithium Battery ...................................................................................................... 4
Handling Care ........................................................................................................ 5
Technical Support ............................................................................................................... 5
Repair Service ........................................................................................................ 6
Configuration and Setup ................................................................................................ 7
Initial Configuration ........................................................................................................... 7
Basic Setup ......................................................................................................................... 7
CMOS Setup ..................................................................................................................... 10
Operating System Installation ........................................................................................... 10
Physical Details ............................................................................................................. 11
Dimensions and Mounting ................................................................................................ 11
VL-EPMs-21 Dimensions .................................................................................... 11
VL-CBR-5012 Dimensions ................................................................................. 12
Hardware Assembly ............................................................................................. 13
Stack Arrangement Example ............................................................................... 13
External Connectors .......................................................................................................... 14
VL-EPMs-21 Connector Locations – Top ........................................................... 14
VL-EPMs-21 Connector Locations – Bottom ..................................................... 15
VL-EPMs-21 Connector Functions and Interface Cables .................................... 16
Connector Locations – VL-CBR-5012 ................................................................ 17
VL-CBR-5012 Connector Functions ................................................................... 17
Jumper Blocks ................................................................................................................... 18
Jumpers As-Shipped Configuration ..................................................................... 18
Jumper Summary ................................................................................................. 19
System Features ........................................................................................................... 20
Power Supply .................................................................................................................... 20
Power Connectors ................................................................................................ 20
Power Requirements ............................................................................................ 21
Power Cycling ..................................................................................................... 21
SUMIT +5V Standby Power................................................................................ 21
Lithium Battery .................................................................................................... 21
CPU ................................................................................................................................... 21
VL-EPMs-21 Reference Manual iv
Contents
System RAM ..................................................................................................................... 22
CMOS RAM ..................................................................................................................... 22
Resetting CMOS Setup to Factory Defaults ........................................................ 22
Clearing the Real-Time Clock ............................................................................. 22
CMOS Setup Defaults ...................................................................................................... 22
Default CMOS RAM Setup Values ..................................................................... 23
Real Time Clock ............................................................................................................... 23
Setting the Clock .................................................................................................. 23
ACPI Power Management ................................................................................................ 23
S3 Sleep State ...................................................................................................... 23
Setup .................................................................................................................... 23
Entering Standby Mode ....................................................................................... 24
Wakeup ................................................................................................................ 24
Power and Reset Button Functionality ................................................................ 24
Watchdog Timer ............................................................................................................... 25
Interfaces and Connectors ........................................................................................... 26
SUMIT Connectors (J1-J2) ............................................................................................... 26
Ethernet Interface (J3)....................................................................................................... 28
Ethernet Connector .............................................................................................. 28
Ethernet Status LEDs ........................................................................................... 28
Video Interface (J4 and J6) ............................................................................................... 29
Display Control .................................................................................................... 29
Configuration ....................................................................................................... 29
LVDS Flat Panel Display Connector ................................................................... 30
Compatible LVDS Panel Displays ....................................................................... 31
VGA Output ......................................................................................................... 31
Console Redirection ............................................................................................. 32
IDE / PATA Interface (J5) ................................................................................................ 33
Loading Software onto a Disk On Module Device .............................................. 34
Main I/O Connector (J7) ................................................................................................... 35
Serial Ports ........................................................................................................................ 36
COM Port Configuration ..................................................................................... 36
Serial Connector Pin Functions ........................................................................... 37
USB Interface ................................................................................................................... 38
Programmable LED .......................................................................................................... 38
Internal Speaker ................................................................................................................ 38
Pushbutton Reset ............................................................................................................... 38
Audio ................................................................................................................................ 39
PC/104 (ISA) Expansion Bus (J9-J10) ............................................................................. 40
PC/104 I/O Cycle Support ................................................................................... 40
PC/104 Memory Cycle Support ........................................................................... 41
IRQ Support ......................................................................................................... 41
DMA and Bus Master Support ............................................................................ 41
SPX Expansion Bus (J13) ................................................................................................. 42
VersaLogic SPX Expansion Modules .................................................................. 42
SPI Registers ........................................................................................................ 43
System Resources and Maps ....................................................................................... 46
Memory Map .................................................................................................................... 46
VL-EPMs-21 Reference Manual v
Contents
I/O Map ............................................................................................................................. 46
Interrupt Configuration ..................................................................................................... 48
VersaLogic Registers ................................................................................................... 49
PLED and Product ID Register ......................................................................................... 49
Revision and Type Register .............................................................................................. 50
GPI Jumper Register ......................................................................................................... 51
Watchdog Timer Register ................................................................................................. 52
PC/104 I/O Block Enable Registers .................................................................................. 53
PC/104 Interrupt Request Enable Registers ...................................................................... 55
Appendix A
– References ............................................................................................. 57
VL-EPMs-21 Reference Manual vi
Introduction
Description
F
EATURES AND
C
ONSTRUCTION
The VL-EPMs-21 is a feature-packed single board computer (SBC) designed for OEM control projects requiring fast processing and designed-in reliability and longevity (product lifespan). Its features include:
Intel Atom Processor Z530P, 1.6 GHz
533 MT/s FSB (standard temperature); Z520PT, 1.33 GHz, 533
MT/s FSB (extended temperature)
Up to 2 GB DDR2 memory for standard temperature product, up to 1
GB for extended temperature product, one SO-DIMM
PATA Disk on Module option, plugs directly into IDE connector
IDE controller (ATA-6, UDMA66/
100), one channel, up to two devices
Three additional USB 2.0 ports (one client and two host) for keyboard, mouse, and other devices on the
VL-CBR-5012 breakout board
TVS devices for ESD protection
Intel High Definition Audio (HDA) compatible
Intel 82574IT-based Ethernet interface, autodetect 10BaseT /
100BaseTX / 1000BaseT
LVDS flat panel display support
SMSC hardware monitor
Four RS-232/422/485 COM ports, 460
Kbps
PC/104 standard 3.55” x 3.78” footprint
SUMIT-AB expansion, supports three
x1 PCIe lanes, four USB, LPC, SPI, and SMBus
PC/104 (ISA) expansion
Field upgradeable BIOS with OEM enhancements
ACPI 2.0 compatible
Customization available
The VL-EPMs-21 is a SUMIT-enabled single board computer with an Intel Z5xx Atom XL processor. The board is compatible with popular operating systems such as Windows, Windows
Embedded, Linux, VxWorks, and QNX.
The VL-EPMs-21 features high reliability design and construction, including voltage sensing reset circuits and self-resetting fuses on the +5V and +3.3V supplies to the user I/O connectors.
VL-EPMs-21 boards are subjected to 100% functional testing and are backed by a limited twoyear warranty. Careful parts sourcing and US-based technical support ensure the highest possible quality, reliability, service, and product longevity for this exceptional SBC.
The VL-EPMs-21 is equipped with a multifunction utility cable (breakout board) that provides standard I/O connectors, including four COM ports, two USB host ports, one USB client port, and audio jacks. I/O expansion is available through the high-speed SUMIT-AB (PCIe, USB,
LPC, SPI, and SMBus), SPX, and PC/104 (ISA) connectors.
VL-EPMs-21 Reference Manual 1
Introduction
Technical Specifications
Specifications are typical at 25°C with +5V supply unless otherwise noted.
Board Size:
3.55” x 3.775” (PC/104 standard)
Storage Temperature:
-40° to +85°C
Operating Temperature:
VL-EPMs-21a, g: 0° to +60°C free air, no airflow
VL-EPMs-21b, h: -40° to +85°C free air (150
LFM from +60° to +85°C)
Power Requirements:
(with 2 GB RAM, keyboard, and mouse
running Windows XP)
+5V 5%
VL-EPMs-21a, g: 1.5A (7.5W) typ./0.2A (1W) S3
VL-EPMs-21b, h: 1.3A (6.5W) typ./0.2A (1W) S3
+3.3V or ±12V may be required by some expansion modules
System Reset:
Watchdog timeout (warm/cold reset)
Pushbutton reset
DRAM:
One SO-DIMM socket, 256 MB to 2 GB for standard temperature product, up to 1 GB for extended temperature product, DDR2, eight chips max. JEDEC raw card types A and C SO-
DIMMs. Use VL-MM8 approved modules.
Video Interface:
Up to 1280 x 1024 (24 bits) @ 85 Hz
LVDS output for TFT FPDs
VGA output with VL-CBR-2010/12 cable and VL-
CBR-2014 adapter card
IDE Interface:
One channel, 44-pin, 2 mm connector. Supports up to and including ATA-6, UDMA66/100 interface
Supports two Parallel ATA IDE devices (hard drive, CD-ROM, CF, etc.)
Flash Storage:
44-pin PATA Disk on Module. Shares IDE channel, master or slave
Ethernet Interface:
Intel 82574IT-based 10BaseT / 100BaseTX /
1000BaseT Ethernet controller
COM1-4 Interface:
RS-232/422/485, 16C550 compatible, 460 Kbps max., 4-wire RS-232 (only CTS and RTS handshaking)
USB:
Three USB 2.0/1.1 ports (one client and two host ports on I/O connector). Four additional USB channels available through SUMIT interface with the appropriate adapter board. Client port can be configured as host in CMOS Setup.
Audio:
Intel High Definition Audio compatible, stereo line in/out
SPX:
Supports four external SPI chips of user design or any SPX series expansion board
ACPI:
BIOS:
ACPI 2.0 compatible
General Software Embedded BIOS© 2000 with
OEM enhancements.
Field-upgradeable with Flash BIOS Update
Utility.
Bus Speed:
CPU FSB: 533 MT/s
PCI Express: 2.5 Gbps
LPC: 33.33 MHz
PC/104 (ISA): 8.33 MHz
Compatibility:
PC/104
– Partial compliance, see PC/104 (ISA)
Expansion Bus (J9-J10) for limitations
Weight:
(no memory installed)
VL-EPMs-21g
– 0.227 lbs (0.103 kg)
VL-EPMs-21h
– 0.247 lbs (0.112 kg)
Form Factor: SUMIT-104
PCIe x1
PCIe x4
USB
ExpressCard
LPC
SPI / uWire
SMBus/ I
2
C
+12V
+5V
+5Vsb
+3.3V
Specifications are subject to change without notification.
SUMIT Resources
SUMIT
A
1
4
–
SPI
SMBus
SUMIT
B
2
–
VL-EPMs-21 Reference Manual 2
VL-EPMs-21 Block Diagram
Introduction
VL-EPMs-21 Reference Manual
Figure 1. System Block Diagram
3
Introduction
RoHS Compliance
The VL-EPMs-21 is RoHS-compliant.
A
BOUT
R
O
HS
In 2003, the European Union issued Directive 2002/95/EC regarding the Restriction of the use of certain Hazardous Substances (RoHS) in electrical and electronic equipment.
The RoHS directive requires producers of electrical and electronic equipment to reduce to acceptable levels the presence of six environmentally sensitive substances: lead, mercury, cadmium, hexavalent chromium, and the presence of polybrominated biphenyls (PBB) and polybrominated diphenyl ethers (PBDE) flame retardants, in certain electrical and electronic products sold in the European Union (EU) beginning July 1, 2006.
VersaLogic Corp. is committed to supporting customers with high-quality products and services meeting the European Union’s RoHS directive.
Warnings
E
LECTROSTATIC
D
ISCHARGE
Warning! Electrostatic discharge (ESD) can damage circuit boards, disk drives, and other components. The circuit board must only be handled at an ESD workstation. If an approved station is not available, some measure of protection can be provided by wearing a grounded antistatic wrist strap. Keep all plastic away from the board, and do not slide the board over any surface.
After removing the board from its protective wrapper, place the board on a grounded, static-free surface, component side up. Use an antistatic foam pad if available.
The board should also be protected inside a closed metallic antistatic envelope during shipment or storage.
Note:
The exterior coating on some metallic antistatic bags is sufficiently conductive to cause excessive battery drain if the bag comes in contact with the bottom side of the VL-EPMs-21.
L
ITHIUM
B
ATTERY
Warning!
To prevent shorting, premature failure, or damage to the lithium battery, do not place the board on a conductive surface such as metal, black conductive foam, or the outside surface of a metalized ESD protective pouch. The lithium battery may explode if mistreated. Do not recharge, disassemble, or dispose of in fire. Dispose of used batteries promptly and in an environmentally suitable manner.
VL-EPMs-21 Reference Manual 4
Introduction
H
ANDLING
C
ARE
Warning!
Care must be taken when handling the board not to touch the exposed circuitry with your fingers. Though it will not damage the circuitry, it is possible that small amounts of oil or perspiration on the skin could have enough conductivity to cause the contents of CMOS RAM to become corrupted through careless handling, resulting in CMOS resetting to factory defaults.
Technical Support
If you are unable to solve a problem after reading this manual, please visit the VL-EPMs-21 product support web page below. The support page provides links to component datasheets, device drivers, and BIOS and PLD code updates.
VL-EPMs-21 Support Page
http://www.versalogic.com/private/ocelotsupport.asp
The VersaTech KnowledgeBase contains a wealth of technical information about VersaLogic products, along with product advisories. Click the link below to see all KnowledgeBase articles related to the VL-EPMs-21.
VersaTech KnowledgeBase
If you have further questions, contact VersaLogic Technical Support at (541) 485-8575.
VersaLogic support engineers are also available via e-mail at [email protected]
.
VL-EPMs-21 Reference Manual 5
Introduction
R
EPAIR
S
ERVICE
If your product requires service, you must obtain a Returned Material Authorization (RMA) number by calling (541) 485-8575.
Please provide the following information:
Your name, the name of your company, your phone number, and e-mail address
The name of a technician or engineer that can be contacted if any questions arise
Quantity of items being returned
The model and serial number (barcode) of each item
A detailed description of the problem
Steps you have taken to resolve or recreate the problem
The return shipping address
Warranty Repair
All parts and labor charges are covered, including return shipping charges for UPS Ground delivery to United States addresses.
Non-warranty Repair All non-warranty repairs are subject to diagnosis and labor charges, parts charges, and return shipping fees. Please specify the shipping method you prefer and provide a purchase order number for invoicing the repair.
Note:
Please mark the RMA number clearly on the outside of the box before returning.
VL-EPMs-21 Reference Manual 6
Configuration and Setup
Initial Configuration
The following components are recommended for a typical development system with the
VL-EPMs-21 computer:
ATX power supply
DDR2 memory module (see System RAM)
LVDS display (or analog display with VL-CBR-2014 adapter card)
Standard I/O breakout board (VL-CBR-5012)
USB keyboard and mouse
USB floppy disk drive (optional)
IDE hard drive (optional)
IDE CD-ROM drive (optional)
The following VersaLogic cables are recommended:
VL-CBR-2012 (or Hirose alternative VL-CBR-2010) or VL-CBR-2011 (JAE)
LVDS adapter cable
VL-CBR-4406 – IDE data cable
VL-CBR-4405 – IDE adapter board, if you are using drives with 40-pin connectors
VL-CBR-1008 – Power adapter cable
You will also need an operating system (OS) installation CD-ROM.
Basic Setup
The following steps outline the procedure for setting up a typical development system.
The VL-EPMs-21 should be handled at an ESD workstation or while wearing a grounded antistatic wrist strap.
Before you begin, unpack the VL-EPMs-21 and accessories. Verify that you received all the items you ordered. Inspect the system visually for any damage that may have occurred in shipping. Contact [email protected]
immediately if any items are damaged or missing.
Gather all the peripheral devices you plan to attach to the VL-EPMs-21 and their interface and power cables.
It is recommended that you attach standoffs to the board (see Hardware Assembly) to
stabilize the board and make it easier to work with.
Figure 2 shows a typical start-up configuration (using RoHS compatible cables).
VL-EPMs-21 Reference Manual 7
Configuration and Setup
LVDS
VL-CBR- 2012 or
VL-CBR-2011
J6
VL-EPMs-21
OCELOT
J5 J7
J11
VL-CBR- 1008
ATX
Power Supply
Power to
Drives
USB Keyboard and USB Mouse
VL-CBR- 4406
Hard
Drive
CD-ROM
Drive
J4
J1
VL-CBR- 5012
OS Installation
CD-ROM
Figure 2. Typical Start-up Configuration
1. Install Memory
Insert the DDR2 DRAM module into the SO-DIMM socket J14 and latch it into place.
2. Attach Cables and Peripherals
Plug the LVDS cable VL-CBR-2012 (or Hirose alternative VL-CBR-2010) or
VL-CBR-2011 into socket J6. Attach the cable to the LVDS display. (Note: You can attach an analog monitor to connector J6 using the VL-CBR-2014 adapter card.)
Plug the breakout board VL-CBR-5012 into socket J7.
Plug a USB keyboard and USB mouse into socket J1 of the breakout board.
(Note: In DOS, input is through a keyboard only. Due to a limitation of the
BIOS, mouse function is not supported in DOS.)
Plug the hard drive data cable VL-CBR-4406 into socket J5. Attach a hard drive and CD-ROM drive to the connectors on the cable. If the hard drive is 3.5”, use the 2 mm to 0.1” adapter VL-CBR-4405 to attach the IDE cable.
Attach an ATX power cable to any 3.5” drive (hard drive or CD-ROM drive).
Set the hard drive jumper for master device operation and the CD-ROM drive jumper for slave device operation.
VL-EPMs-21 Reference Manual 8
Configuration and Setup
3. Attach Power
Plug the power adapter cable VL-CBR-1008 into socket J11. Attach the motherboard connector of the ATX power supply to the adapter.
4. Review Configuration
Before you power up the system, double check all the connections. Make sure all cables are oriented correctly and that adequate power will be supplied to the
VL-EPMs-21 and peripheral devices.
5. Power On
Turn on the ATX power supply and the video monitor. If the system is correctly configured, a video signal should be present.
6. Select a Boot Drive
During startup, type CTRL-B to display the boot menu. Insert the OS installation CD in the CD-ROM drive and select to boot from the CD-ROM drive.
7. Install Operating System
Install the OS according to the instructions provided by the OS manufacturer.
(See Operating System Installation.)
Note: If you intend to operate the VL-EPMs-21 under Windows XP or
Windows XP Embedded, be sure to use Service Pack 3 (SP3) for full support of the latest device features.
VL-EPMs-21 Reference Manual 9
Configuration and Setup
CMOS Setup
See KnowledgeBase article VT1628 - EPMs-21 CMOS Setup Reference for complete information about CMOS Setup parameters.
Note:
The minimum BIOS revision required to operate the VL-EPMs-U1 Serial
Communications board with the VL-EPMs-21 is 6.5.101. Be sure to update the BIOS to the latest available revision from the VL-EPMs-21 support page before installing the VL-EPMs-U1.
Operating System Installation
The standard PC architecture used on the VL-EPMs-21 makes the installation and use of most of the standard x86-based operating systems very simple. The operating systems listed on the VersaLogic OS Compatibility Chart use the standard installation procedures provided by the maker of the OS. Special optimized hardware drivers for a particular OS, or a link to the drivers, are available at the VL-EPMs-21 Product Support web page at http://www.versalogic.com/private/ocelotsupport.asp
.
VL-EPMs-21 Reference Manual 10
Physical Details
Dimensions and Mounting
VL-EPM
S
-21 D
IMENSIONS
The VL-EPMs-21 complies with PC/104-Express dimensional standards. Dimensions are given below to help with pre-production planning and layout.
3.575
3.375
3.275
+
0.125 DIA x4
Use 3mm or #4 standoffs
+
J3
3.175
0.11
0.100
0.000
-0.200
+
J11
0.38
+
Figure 3.VL-EPMs-21 Dimensions and Mounting Holes
(Not to scale. All dimensions in inches.)
VL-EPMs-21 Reference Manual
0.200
11
Physical Details
1.17
0.44
0.44
0.45
0.24
0.06
Note:
Figure 4. VL-EPMs21 Height Dimensions
(Not to scale. All dimensions in inches.)
Pass-through PC/104 (ISA) connectors are included only on “a” and “b” models.
VL-CBR-5012 D
IMENSIONS
5.50
5.10
1.57
1.95
1.24
Figure 5. VL-CBR-5012 Dimensions and Mounting Holes
(Not to scale. All dimensions in inches.)
0.065
VL-EPMs-21 Reference Manual 12
Physical Details
H
ARDWARE
A
SSEMBLY
The VL-EPMs-21 uses pass-through SUMIT (PCIe, USB, LPC, and SPI) and PC/104 (ISA) connectors so that expansion modules can be added to the top of the stack. A SUMIT expansion module with a PCIe x4 lane must be closest to the CPU board (for SUMIT CPU boards supporting a PCIe x4 lane). Next on the stack would be an expansion module with a PCIe x1 lane. Above that, USB, SPI, SMBus, and/or LPC SUMIT modules can be stacked. PC/104-only
(ISA) modules must not be positioned between the VL-EPMs-21 and any SUMIT modules on the stack.
The entire assembly can sit on a table top or be secured to a base plate. When bolting the unit down, make sure to secure all four standoffs to the mounting surface to prevent circuit board
flexing. Standoffs are secured to the top circuit board using four pan head screws. See page 11 for
dimensional details. Standoffs and screws are available as part number VL-HDW-105. Note that the standoffs in this kit are 15.25 mm (0.60"), and must not be mixed with the 15 mm standoffs used for non-SUMIT boards.
An extractor tool is available (part number VL-HDW-201) to separate the PC/104 modules from the stack. Use caution when using the extractor tool not to damage any board components.
S
TACK
A
RRANGEMENT
E
XAMPLE
VL-EPMs-21 Reference Manual
Figure 6. Stack Arrangement Example
13
Physical Details
External Connectors
VL-EPM
S
-21 C
ONNECTOR
L
OCATIONS
–
T
OP
J4
Display Control
J6
LVDS
J1
SUMIT B
J2
SUMIT A
J3
Ethernet
J5
IDE
MH1
DOM Mounting Hole
J7
COM1-4,
USB 0-2,
PLED,
Speaker,
Reset, Power
Button, Audio line in/out
J9-J10
PC/104 (ISA)
2
1
10
9
J11
Power
= Pin 1
Figure 7. Connector Locations (Top)
VL-EPMs-21 Reference Manual 14
VL-EPM
S
-21 C
ONNECTOR
L
OCATIONS
–
B
OTTOM
J14
SODIMM
J13
SPX
Physical Details
= Pin 1
Figure 8. Connector Locations (Bottom)
VL-EPMs-21 Reference Manual 15
Physical Details
VL-EPM
S
-21 C
ONNECTOR
F
UNCTIONS AND
I
NTERFACE
C
ABLES
Table 1 provides information about the function, mating connectors, and transition cables for VL-
EPMs-21 connectors. Page numbers indicate where a detailed pinout or further information is available.
Table 1: Connector Functions and Interface Cables
Connector
J1
J2
J3
J4
J5
J6
J7
J8
J9-J10
J11
J12
J13
J14
Function
SUMIT B
– 2 PCIe x1 lanes
SUMIT A
– 1 PCIe x1 lane, 4 USB,
LPC, SPI, SMBus
Gigabit Ethernet
Display Control
–
Monitor DDC,
GMBus, backlight control
IDE
– HD, CD-ROM, or DOM
LVDS
3
Mating Connector
Samtec ASP-129646-01
Samtec ASP-129646-01
RJ45
Molex 51146-0900 (housing)
Molex 50641-8041 (pins)
Transition
—
—
—
Cable Cable Description
—
—
—
Display Control
Main I/O
– 4 COM, 2
USB host, 1 USB client, audio in/out,
LED, speaker, power button, reset
JTAG in-system programming
PC/104
Main Power Input
—
FCI 89947-144LF
Molex 51146-2000 (housing)
Molex 50641-8041 (pins)
FCI 89361-350LF
VL-CBR-4406
2 1’ 44-pin 2 mm latching / two 44-pin 2 mm
VL-CBR-2012 or
VL-CBR-2010 or
VL-CBR-2011
24-bit TFT FPD using 20pin Hirose conn. or
18-bit TFT FPD using
20-pin Hirose conn. or
18-bit TFT FPD using
20-pin JAE conn.
VL-CBR-5012 50-pin I/O cable to breakout board
— —
AMP 1375795-2
Berg 69176-010 (housing) +
Berg 47715-000 (pins)
—
— —
VL-CBR-1008 Interface from standard
ATX power supply
— —
Intel in-system debug port
SPX
SO-DIMM
FCI 89361-714LF
DDR2 RAM
—
VL-CBR-1401 or
VL-CBR-1402
—
2 mm 14-pin IDC, 2 or 4
SPX device cable
—
Pin 1 Location
1 x coord. y coord.
1.669 3.322
Page
2.712
3.036
-0.261
3.221
-0.261
3.532
-0.467
0.050
0.259
1.223
3.048
-0.404
3.322
2.992
2.292
2.288
1.484
2.288
0.199
0.200
-0.125
3.287
1.485
0.548
—
—
1. The PCB Origin is the mounting hole to the lower left.
2. VL-CBR-4405 44-pin to 40-pin adapter required to connect to 3.5" IDE drives with 40-pin connectors.
3. A VGA monitor can be connected to J6 using the VL-CBR-2014 LVDS to VGA adapter card.
VL-EPMs-21 Reference Manual 16
Physical Details
C
ONNECTOR
L
OCATIONS
–
VL-CBR-5012
SP1
Speaker
49
50
J4
Paddle Board Adapter
1
2
J5
COM3
5
5 1
J6
COM4
1
J2
COM1 (Top)
COM2 (Bottom)
J1
USB0 (Top)
USB1 (Bottom)
J7
USB2
J3
Audio
In (Top)
Out (Bottom)
S1
Power
D1
PLED
(Top)
Power
LED
(Bottom)
S2
Reset
Figure 9. VL-CBR-5012 Connector Locations
VL-CBR-5012 C
ONNECTOR
F
UNCTIONS
Table 2: VL-CBR-5012 Connector Functions and Interface Cables
Connector Function
J5
J6
J7
D1
J1
J2
J3
J4
S1
S2
SP1
PCB Connector
USB0, USB1
COM1, COM2
Audio In/Out
High Density Connector
USB Type A
Kycon K42-E9P/P-A4N
3.5 mm dual audio jack
FCI 98414-F06-50ULF
COM3
COM4
Conta-Clip 10250.4
Conta-Clip 10250.4
USB2 USB Type B
PLED (Top), Power LED (Bottom) LED
Power Button
Reset Button
Speaker
Pushbutton
Pushbutton
Piezo speaker
Description
USB Host
Dual DB-9 male
–
2 mm, 50-pin, keyed header
5-pin screw terminal
5-pin screw terminal
USB Client
–
–
–
–
VL-EPMs-21 Reference Manual 17
Jumper Blocks
J
UMPERS
A
S
-S
HIPPED
C
ONFIGURATION
Physical Details
V1
1
3
5
7
2
4
6
8
V2
1
3
2
4
Figure 10. Jumper Block Locations
V3
1 2 3
VL-EPMs-21 Reference Manual 18
Physical Details
J
UMPER
S
UMMARY
Jumper
Block
V1[1-2]
Table 3: Jumper Summary
Description
COM1 Rx End-point Termination
In
– 120 Ohm termination active
Out
– No termination
Places terminating resistor across COM1 RS-485 TXRX+/TXRX- or RS-
422 RX+/RX- differential pair.
V1[3-4]
COM2 Rx End-point Termination
In
– 120 Ohm termination active
Out
– No termination
Places terminating resistor across COM2 RS-485 TXRX+/TXRX- or RS-
422 RX+/RX- differential pair.
V1[5-6]
COM3 Rx End-point Termination
In
– 120 Ohm termination active
Out
– No termination
Places terminating resistor across COM3 RS-485 TXRX+/TXRX- or RS-
422 RX+/RX- differential pair.
V1[7-8]
COM4 Rx End-point Termination
In
– 120 Ohm termination active
Out
– No termination
Places terminating resistor across COM4 RS-485 TXRX+/TXRX- or RS-
422 RX+/RX- differential pair.
V2[1-2]
General Purpose Input Bit
In
– Bit D1 of GPI register reads as 1
Out
– Bit D1 of GPI register reads as 0
V2[3-4]
CMOS Reset
In
– Normal operation
Out
– Reset CMOS to factory defaults
Removing this jumper and restarting the VL-EMPs-21 causes CMOS to be restored to factory defaults.
V3[1-2]
RTC Reset
In
– Reset RTC
Out
– Normal operation
V3[2-3]
Jumper Storage
As
Shipped
Out
(Rev. 1.02 and later)
In
(Rev. 1.01 and earlier)
Out
(Rev. 1.02 and later)
In
(Rev. 1.01 and earlier)
In
Page
In
In
In
Out
In
–
VL-EPMs-21 Reference Manual 19
System Features
Power Supply
P
OWER
C
ONNECTORS
Main power is applied to the VL-EPMs-21 through a 10-pin polarized connector, with mating connector Berg 69176-010 (Housing) + Berg 47715-000 (Pins). See the table below for connector
pinout and page 14 for location information.
Warning!
To prevent severe and possibly irreparable damage to the system, it is critical that the power connectors are wired correctly. Make sure to use all +5 VDC and all ground pins to prevent excess voltage drop. The power connector is not fuse or diode protected. Proper polarity must be followed or damage will occur. Some manufacturers include a pin-1 indicator on the crimp housing that corresponds to
pin-10 of the pinout shown in Figure 11.
Table 4: Main Power Connector Pinout
J11
Pin
Signal
Name Description
1 GND
2 +5 VDC
Ground
Power Input
3 GND Ground
4 +12 VDC Power Input
5 GND
6 -12 VDC
Ground
Power Input
7 +3.3 VDC Power Input
8 +5 VDC Power Input
9 GND
10 +5 VDC
Ground
Power Input
Note:
The +3.3 VDC, +12 VDC and -12 VDC inputs are necessary for expansion modules that require these voltages.
J11
Some manufacturers include a pin-1 indicator that corresponds to pin-10 of the power connector pinout
2 4
6 8
10
10
8
6
4
2
1 3
5 7
9
9
7
5
3
1
Figure 11. J11 and VL-CBR-1008 Pin Numbering
VL-CBR-1008
VL-EPMs-21 Reference Manual 20
System Features
P
OWER
R
EQUIREMENTS
The VL-EPMs-21 requires only +5V (±5%) for proper operation. The voltage required for the
RS-232 ports is generated with an on-board DC/DC converter. Variable low-voltage supply circuits provide power to the CPU and other on-board devices.
The exact power requirement of the VL-EPMs-21 depends on several factors, including memory configuration, CPU speed, peripheral connections, and the type and number of expansion modules and attached devices. For example, driving long RS-232 lines at high speed can increase power demand.
P
OWER
C
YCLING
To ensure reliable power up when cycling power, you must allow the power to remain off for a minimum of three seconds. This ensures that all internal clocks and phased-lock loop (PLL) circuitry have settled before powering back on. The three second minimum is a requirement of the Intel chipset architecture and not the design of the VL-EPMs-21.
In order to reduce boot failures when power is cycled in less than three seconds, the system's watchdog timer is enabled by default during the power-on self-test (POST) pre-boot sequence.
With the POST Watchdog parameter enabled in CMOS Setup, a hang condition during POST will cause the watchdog to timeout and reboot the board. If disabled, a hang caused by quick power cycling will cause a boot failure.
SUMIT +5V S
TANDBY
P
OWER
The +5V power inputs to the VL-EPMs-21 are common to one another; for example, +5Vsb is connected to the J11 input +5V pins.
L
ITHIUM
B
ATTERY
Warning! To prevent shorting, premature failure, or damage to the lithium battery, do not place the board on a conductive surface such as metal, black conductive foam, or the outside surface of a metalized ESD protective pouch. The lithium battery may explode if mistreated. Do not recharge, disassemble or dispose of in fire. Dispose of used batteries promptly.
Normal battery voltage should be at least +3V. If the voltage drops below +2V, contact the factory for a replacement (part number HB3/0-1). The life expectancy under normal use is approximately 10 years.
CPU
The Intel Z5xx Atom is a low power, single core processor with Hyperthreading
TM
support and clock rates of 1.6 GHz (VL-EPMs-21g) and 1.33 GHz (VL-EPMs-21h), with a 533 MT/s FSB and 512 KB cache. The CPU has a typical power consumption of 2.2W. The Intel System
Controller Hub (SCH) chipset features DDR2 SDRAM support, integrated LVDS and display control, USB 2.0/1.1, PATA/ IDE, and PCI Express, among other interfaces.
VL-EPMs-21 Reference Manual 21
System Features
System RAM
The VL-EPMs-21 has one DDR2 SO-DIMM socket with the following characteristics:
Storage Capacity 256 MB to 2 GB for standard temperature product
256 MB to 1 GB for extended temperature product
Voltage
Type
Eight chips max. (JEDEC SO-DIMM raw card types A or C)
+1.8V
Unbuffered PC2-4200 or faster (DDR2)
Note:
The recently released Intel Atom Z5xx CPU supports only JEDEC SO-DIMM raw card types A or C. It currently does not support most 16-chip memory modules, raw card type E. Use only the VersaLogic VL-MM8 family of approved memory modules. As Intel issues microcode updates, additional memory vendors may be qualified. Contact VersaLogic Sales for more information.
CMOS RAM
R
ESETTING
CMOS S
ETUP TO
F
ACTORY
D
EFAULTS
You can remove the V2[3-4] jumper to reset CMOS to factory defaults. When resetting CMOS:
1. Power off the VL-EPMs-21.
2. Remove the V2[3-4] jumper and power up the computer.
3. Move the jumper to back to V2[3-4] after power up to retain CMOS settings.
C
LEARING THE
R
EAL
-T
IME
C
LOCK
You can move the V3 jumper to position [1-2] for a minimum of three seconds to erase the contents of the Real-Time Clock (RTC). When clearing the RTC:
1. Power off the VL-EPMs-21.
2. Install the jumper on V3[1-2] and leave it for three seconds.
3. Move the jumper to back to V3[2-3].
4. Power on the VL-EPMs-21.
CMOS Setup Defaults
The VL-EPMs-21 permits users to modify CMOS Setup defaults. This allows the system to boot up with user-defined settings from cleared or corrupted CMOS RAM, battery failure, or batteryless operation. All CMOS Setup defaults can be changed, except the time and date. CMOS Setup defaults can be updated with the BIOS Update Utility. See the General BIOS Information page for details.
Warning! If CMOS Setup default settings make the system unbootable and prevent the user from entering CMOS Setup, the VL-EPMs-21 needs to be serviced by the factory.
VL-EPMs-21 Reference Manual 22
System Features
D
EFAULT
CMOS RAM S
ETUP
V
ALUES
After CMOS RAM is cleared, the system will load default CMOS RAM parameters the next time the board is powered on. The default CMOS RAM setup values will be used in order to boot the system whenever the main CMOS RAM values are blank, or when the system battery is dead or has been removed from the board.
Real Time Clock
The VL-EPMs-21 features a year 2000-compliant, battery-backed 146818-compatible real-time clock/calendar chip. Under normal battery conditions, the clock maintains accurate timekeeping functions when the board is powered off.
S
ETTING THE
C
LOCK
The CMOS Setup utility (accessed by pressing the Delete key during the early boot cycle) can be used to set the time and date of the real-time clock.
ACPI Power Management
The VL-EPMs-21 supports the Advanced Configuration and Power Interface (ACPI) via a
LVCMOS-level input or pushbutton (or relay attached to the pushbutton interface). Power consumption in standby mode is approximately 1 watt. Wakeup typically occurs in 1 to 6 seconds.
Standby mode functionality has been tested under Windows XP and Linux.
S3 S
LEEP
S
TATE
The ACPI Specification defines the S3 sleeping state as a low wake latency sleeping state where all system context is lost except system memory. CPU, cache, and chipset context are lost in this state. The hardware maintains memory context and restores some CPU configuration context.
Control starts from the processor’s reset vector after the wake event.
Since the state of the OS and all applications (including open documents) is sustained in main memory, the system can resume work exactly where it left off. The contents of main memory when the computer wakes from standby are the same as when it was put into standby.
S
ETUP
To setup the VL-EPMs-21 to use ACPI power management:
1. Verify that the CMOS Setup ACPI setting is set to Enabled. This is the default setting.
2. Install the most current drivers for all system devices. If a driver is not installed in
Windows correctly, an exclamation point will appear before the device name in Device
Manager. Incorrectly installed or older drivers may prevent the system from entering standby mode.
VL-EPMs-21 Reference Manual 23
System Features
E
NTERING
S
TANDBY
M
ODE
Standby mode can be entered through the OS (by configuring the standby settings in Power
Options Properties) or programmatically, through a function call or the execution of a shutdown utility.
SetSystemPowerState Function
The “Power Management Reference” in the
MSDN Library contains complete information on the
API available for power control under Windows. The “Power Management Functions” section provides complete information on the use of the API.
The function used to set the system power state is SetSystemPowerState. This function suspends the system by shutting power down. Depending on the ForceFlag parameter, the function either suspends operation immediately or requests permission from all applications and device drivers before doing so.
BOOL SetSystemPowerState(
BOOL fSuspend,
BOOL fForce
);
Parameters:
fSuspend
[in] If this parameter is TRUE, the system is suspended. If the parameter is FALSE, the system hibernates. This parameter is ignored in Windows Me/98/95.
fForce
[in] If this parameter is TRUE, the function broadcasts a PBT_APMSUSPEND event to each application and driver, then immediately suspends operation. If the parameter is
FALSE, the function broadcasts a PBT_APMQUERYSUSPEND event to each application to request permission to suspend operation.
W
AKEUP
The system will wake with one power button push. It can also wake potentially (with software support) from the Ethernet or serial port.
P
OWER AND
R
ESET
B
UTTON
F
UNCTIONALITY
The power and reset button inputs of the VL-EPMs-21 are simplified versions of those described in ACPI Specification 2.0. There is no software interface to observe or configure their behavior.
The power button has direct control of the system power state. When the system is in the S0 state
(fully on), pressing the power button will shut off the VL-EPMs-21 and place it into the S5 state
(off). No event signal is given to the OS and the system will not wait for the OS to shutdown before removing power to the CPU and chipset.
VL-EPMs-21 Reference Manual 24
System Features
Watchdog Timer
A watchdog timer can be implemented using the VL-EPMs-21 WDT register and the SMSC
SCH3114 Super I/O chip. The BIOS initializes the SCH3114 WDT registers during post.
See the SCH311X Datasheet for detailed Super I/O chip information.
1. Configure PLD Watchdog control bits (0x1D3.5:4). Examples: a. 0x1D3 POR default = 00h b. 0x1D3 = 00h = Do Nothing c. 0x1D3 = 10h = Cold Reset d. 0x1D3 = 20h = Power Cycle (3 sec. off time) e. 0x1D3 = 30h = Power Off
2. Configure Super I/O WDT (GP60) pin (0x0C47.7,3:0). Examples: a. 0x0C47 POR default = 0Eh b. 0x0C47 = 0Eh = WDT enable, Push-Pull, Inverted
3. Configure Timescale (0x0C65.7). Examples: a. 0x0C65 POR default = 08h b. 0x0C65 = 00h = Minutes c. 0x0C65 = 80h = Seconds
4. Configure Timeout value (0x0C66.7:0). Examples: a. 0x0C66 POR default = 00h b. 0x0C66 = 00h = WDT disabled c. 0x0C66 = 01h to FFh = Timeout value + 1 (min./sec.)
5. (optional) Read SIO WDT status bit (0x0C68.1). Examples: a. 0x0C68 POR default = 00h b. 0x0C68 = 00h = timer counting c. 0x0C68 = 01h = timeout occurred (Note: Bit 0 is not automatically cleared by
PCI reset but can be reset by software.)
6. (optional) Read PLD WDT status bit (0x1D3.7). Examples: a. 0x1D3 POR default = 00h b. 0x1D3 = 00h = No timeout has occurred c. 0x1D3 = 80h = timeout has occurred
7. (optional) “Feeding” the watchdog. a. Repeat step 4
VL-EPMs-21 Reference Manual 25
Interfaces and Connectors
.
Pin Signal Name
1 +5VSB
3 3.3V
5 3.3V
7 NC
9 NC
11 USB_OC#
13 Reserved
15 +5V
17 USB7+
19 USB7-
21 +5V
23 USB6+
25 USB6-
27 +5V
29 USB5+
31 USB5-
33 +5V
35 USB4+
37 USB4-
39 GND
41 A_PETp2
43 A_PETn2
45 GND
47 PERST#
49 WAKE#
51 +5V
SUMIT Connectors (J1-J2)
The SUMIT-A and SUMIT-B connectors (J2 and J1, respectively) provide expansion options by
supporting additional buses, as shown in Table 5 and Table 6. See the
SUMIT Specification for a complete description of the SUMIT interface.
Table 5: VL-EPMs-21 SUMIT-A Connector (J2) Pinout
Function Pin Signal Name Function
+5V power (common)
+3.3V power
+3.3V power
No connect
No connect
USB overcurrent flag
Reserved
+5V power
USB7 data +
USB7 data
–
+5V power
USB6 data +
USB6 data
+5V power
USB5 data +
USB5 data
–
+5V power
30
32
LPC_AD3
LPC_FRAME#
USB4 data +
USB4 data
–
Ground
34 SERIRQ#
36
38
NC
CLK_33MHz
40 GND
Link A, lane 2 transmit + 42 A_PERp2
Link A, lane 2 transmit
–
44 A_PERn2
Ground
Platform Reset
PCIe Wake
46
48
50
APRSNT#/GND
A_CLKp
A_CLKn
+5V power
–
2 +12V
4 SMB/I2C_DATA
+12V power
SMBus data
6 SMB/I2C_CLK
10 SPI/uWire_DO
SMBus clock
8 SMB/I2C_ALERT# SMBus interrupt line in
SPI master in slave out
12 SPI/uWire_DI
14 SPI/uWire_CLK
16 SPI/uWire_CS0#
18
20
22
SPI/uWire_CS1#
NC
NC
24 LPC_AD0
26 LPC_AD1
28 LPC_AD2
52 GND
SPI master out slave in
SPI clock
SPI slave select 5
SPI slave select 6
No connect
No connect
LPC address-data line 0
LPC address-data line 1
LPC address-data line 2
LPC address-data line 3
LPC frame
Serial IRQ legacy
No connect
LPC 33 MHz clock
Ground
Link A, lane 2 receive +
Link A, lane 2 receive
–
Link A card present
Link A clock 0 +
Link A clock 0 -
Ground
VL-EPMs-21 Reference Manual 26
Interfaces and Connectors
Pin Signal Name
1 GND
3 B_PETp4
5 B_PETn4
7 GND
9 C_CLKp
11 C_CLKn
13 CPRSNT#/GND
15 C_PETp5
17 C_PETn5
19 GND
21 NC
23 NC
25 GND
27 NC
29 NC
31 GND
33 NC
35 NC
37 GND
39 PERST#
41 NC
43 +5V
45 +5V
47 +5V
49 +5V
51 +5V
Table 6: VL-EPMs-21 SUMIT B Connector (J1) Pinout
Function Pin Signal Name
Ground
Link B, lane 4 transmit +
Link B, lane 4 transmit
–
Ground
Link C clock 5 +
Link C clock 5
–
2 GND
4 B_PERp4
6 B_PERn4
8 BPRSNT#/GND
10 B_CLKp
12 B_CLKn
Link C present 14 GND
Link C, lane 5 transmit + 16 C_PERp5
Link C, lane 5 transmit
–
18 C_PERn5
Ground 20 GND
No connect
No connect
Ground
No connect
No connect
Ground
22
24
26
NC
NC
GND
28 NC
30 NC
32 GND
No connect
No connect
Ground
Reset
No connect
+5V power
+5V power
+5V power
+5V power
+5V power
34 NC
36 NC
38
44
50
52
GND
40 WAKE#
42 NC
NC
46 3.3V
48 3.3V
3.3V
+5VSB
Function
Ground
Link B, lane 4 receive +
Link B, lane 4 receive
–
Link B present
Link B clock 4 +
Link B clock 4
–
Ground
Link C, lane 5 receive +
Link C, lane 5 receive
–
Ground
No connect
No connect
Ground
No connect
No connect
Ground
No connect
No connect
Ground
PCIe Wake
No connect
No connect
+3.3V power
+3.3V power
+3.3V power
+5V power (common)
VL-EPMs-21 Reference Manual 27
Interfaces and Connectors
Ethernet Interface (J3)
The VL-EPMs-21 features an on-board Intel 82574IT gigabit Ethernet controller, which provides a standard IEEE 802.3 Ethernet interface for 1000Base-T, 100Base-T, 100Base-TX, and 10Base-
T applications. The 82574IT consumes one PCIe lane operating at 2.5 Mbps with sufficient bandwidth to support a 1000 Mbps transfer rate.
E
THERNET
C
ONNECTOR
A board-mounted RJ45 connector is provided to make connection with a Category 5 or 6 Ethernet cable. The 82574IT Ethernet controller auto-negotiates connection speed. The interface uses IEC
61000-4-2-rated TVS components to help protect against ESD damage.
Table 7: RJ45 Ethernet Connector Pinout
J3
Pin
1
2
3
4
5
6
7
8
Name
Fast Ethernet
Signal
Function
Signal
Name
Gigabit Ethernet
Function
T+
T
–
R+
Transmit Data + MID0+ Media Dependent Interface [0]+
Transmit Data
– MID0–
Media Dependent Interface [0]
–
Receive Data + MID1+ Media Dependent Interface [1]+
IGND Isolated Ground MID2+ Media Dependent Interface [2]+
IGND Isolated Ground MID2
–
Media Dependent Interface [2]
–
R
–
Receive Data
–
MID1
–
Media Dependent Interface [1]
–
IGND Isolated Ground MID3+ Media Dependent Interface [3]+
IGND Isolated Ground MID3
–
Media Dependent Interface [3]
–
E
THERNET
S
TATUS
LED
S
The RJ-45 connector has two built-in LEDs to provide an indication of the Ethernet status as shown in the following table.
LED
Green/Orange
(Link Speed)
Yellow (Activity)
Table 8: Ethernet Status LEDs
State
Orange
Green
Off
On
Off
Description
1 Gbps speed
100 Mbps speed
10 Mbps speed or cable not plugged into active hub
Activity detected on cable
(intermittent with activity)
No activity detected on cable
VL-EPMs-21 Reference Manual 28
Interfaces and Connectors
Video Interface (J4 and J6)
An on-board video controller integrated into the chipset provides high-performance LVDS video output for the VL-EPMs-21. The VL-EPMs-21 can also be operated with a VGA monitor through an adapter or without a video card attached (headless).
D
ISPLAY
C
ONTROL
Pin
Signal
Name Function
1 VEN Backlight inverter power enable
2 GMbus_CLK I2C-based backlight brightness control clock
3 GND Ground
4 GMbus_DATA I2C-based backlight brightness control data
5 BLEN Backlight enable
6 DDC_CLK Display Data Channel clock (EDID) for plug-n-play
7 GND
8 DDC_DATA
9 BLCTL
Ground
Display Data Channel data (EDID) for plug-n-play
Simple PWM-based backlight brightness control
C
ONFIGURATION
The VL-EPMs-21 uses a shared-memory architecture. This allows the video controller to use 256
MB of system DRAM for video RAM.
The VL-EPMs-21 supports only one type of video output: LVDS Flat Panel Display.
VL-EPMs-21 Reference Manual 29
Interfaces and Connectors
LVDS F
LAT
P
ANEL
D
ISPLAY
C
ONNECTOR
The integrated LVDS flat panel display in the VL-EPMs-21 is an ANSI/TIA/EIA-644-1995 specification-compliant interface. It can support up to 24 bits of RGB pixel data plus three bits of timing control (HSYNC/VSYNC/DE) on the four differential data output pairs. The LVDS clock frequency ranges from 25 MHz to 112 MHz.
The +3.3V power provided to pins 19 and 20 of J6 is protected by a 1 amp fuse.
See the Connector Location Diagram on page 14 for connector location information.
Table 9: LVDS Flat Panel Display Pinout
J6
Pin
Signal
Name Function
1 GND
2 NC
Ground
No Connection
3
4
9
LVDSA3
LVDSA2
10 LVDSA2#
11 GND
LVDSA3#
Diff. Data 3 (+)
Diff. Data 3 (
–)
5 GND Ground
6 LVFSCLK0 Differential Clock (+)
7 LVDSCLK0# Differential Clock (
–)
8 GND Ground
Diff. Data 2 (+)
Diff. Data 2 (
–)
Ground
12
13
14
17
18
19
20
LVDSA1
GND
GND
GND
15 LVDSA0
+3.3V
+3.3V
LVDSA1#
16 LVDSA0#
Diff. Data 1 (+)
Diff. Data 1 (
–)
Ground
Diff. Data 0 (+)
Diff. Data 0 (
–)
Ground
Ground
Protected Power Supply
Protected Power Supply
VL-EPMs-21 Reference Manual 30
Interfaces and Connectors
C
OMPATIBLE
LVDS P
ANEL
D
ISPLAYS
The following list of flat panel displays is reported to work properly with the integrated graphics video controller chip used on the VL-EPMs-21.
Table 10: Compatible Flat Panel Displays
Manufacture
Model
Number
Panel
Size Resolution
eVision Displays au Optronix xxx084S01 series
B084SN01
8.4”
8.4” eVision Displays xxx104S01 series
10.4”
800 x 600 18-bit
800 x 600 18-bit
800 x 600 18-bit au Optronix
Sharp
B104SN01
LQ121S1LG411
10.4”
12.1”
800 x 600 18-bit
800 x 600 18-bit eVision Displays* xxx141X01 series
14.1”
1024 x 768 18-bit
Interface
LVDS
LVDS
LVDS
LVDS
LVDS
LVDS
*
Compatible with DOS or Windows Generic VGA driver, but not the GX Windows driver.
Panel
Technology
TFT
TFT
TFT
TFT
TFT
TFT
VGA O
UTPUT
A VGA monitor can be attached to the J6 connector using the VL-CBR-2014 LVDS to VGA adapter card. Follow the procedure below to do this.
1. Plug LVDS cable VL-CBR-2012 or VL-CBR-2010 into connector J6 of the VL-EPMs-21.
2. Plug the LVDS cable into connector J1 of the VL-CBR-2014 adapter card (see Figure 12).
3. Attach the VGA monitor data cable to connector CN1 of the VL-CBR-2014 adapter cable.
= Pin 1
J1
LVDS
VL-EPMs-21 Reference Manual
Figure 12. VL-CBR-2014 LVDS to VGA Adapter Card
CN1
VGA
31
Interfaces and Connectors
C
ONSOLE
R
EDIRECTION
The VL-EPMs-21 can be operated without using the on-board video output by redirecting the console to a serial communications port. CMOS Setup and some operating systems such as DOS can use this console for user interaction.
Console redirection settings are configured on the Features tab of CMOS Setup. The default setting (On Remote User Detect) causes the console not to be redirected to COM1 unless a signal
(a Ctrl-C character) is detected from the terminal. Console redirection can also be set to Always or Never. You can direct console output to any COM port.
Notes on console redirection:
When console redirection is enabled, you can access CMOS Setup by typing Ctrl-C.
The decision to redirect the console is made early in BIOS execution and cannot be changed later.
The redirected console uses 115200 baud, 8 data bits, 1 stop bit, no parity, and no flow control.
Null Modem
The following diagram illustrates a typical DB9 to DB9 RS-232 null modem adapter.
S y s t e m 1 < - - > S y s t e m 2
N a m e P i n P i n N a m e
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
T X 3 - - - > 2 R X
R X 2 < - - - 3 T X
R T S 7 - - - > 8 C T S
C T S 8 < - - - 7 R T S
G N D 5 < - - > 5 G N D
D T R 4 < - | | - > 6 D S R
D S R 6 < - | | - > 4 D T R
C D 1 < - | | - > 1 C D
Pins 1, 4, and 6 are shorted together on each connector. Unlisted pins have no connection.
VL-EPMs-21 Reference Manual 32
Interfaces and Connectors
IDE / PATA Interface (J5)
The IDE interface is available to connect up to two IDE devices, such as hard disks, CD-ROM drives, or Disk on Module devices. Connector J5 is the IDE controller with a 44-pin 2 mm connector. Use CMOS Setup to specify the drive parameters of the drive. If you attach only one
IDE, it must be configured (jumpered) as the master device; a single IDE device configured as a slave device can cause system failures.
Cable length must be 18" or less to maintain proper signal integrity.
This interface supplies power to 2.5" IDE drives. If you are connecting a 3.5" drive to the interface (using the VL-CBR-4405 44-pin to 40-pin IDE adapter), you must supply external power to the drive. The power cable attached to a 3.5" drive must be properly grounded so that motor current is not returned via the grounds in the data cable.
VersaLogic offers a number of Disk on Module (DOM) flash storage devices, in capacities from
1 to 8 GB, that attach to the IDE connector. The VL-F20 series of DOMs have a 44-pin 2 mm connector and are secured to the board with one M2.5 x 6mm nylon pan head Philips screw.
Screws are available in 10-count packages as part number VL-HDW-108.
Table 11: J5 IDE Hard Drive Connector Pinout
Pin Signal Name Function
1 Reset-
2 Ground
3 DD7
4 DD8
5 DD6
6 DD9
7 DD5
8 DD10
9 DD4
10 DD11
11 DD3
12 DD12
13 DD2
14 DD13
15 DD1
16 DD14
17 DD0
18 DD15
19 Ground
20 NC
21 PDMARQ
22 Ground
Pin Signal Name
Reset signal from CPU 23 DIOW
Ground
Data bus bit 7
Data bus bit 8
Data bus bit 6
Data bus bit 9
24
25
26
27
28
Ground
DIOR
Ground
IORDY
CSEL
Data bus bit 5
Data bus bit 10
Data bus bit 4
Data bus bit 11
Data bus bit 3
Data bus bit 12
29
30
31
DMACK-
Ground
INTRQ
32 NC
33 DA1
34 CBLID-
Data bus bit 2
Data bus bit 13
Data bus bit 1
Data bus bit 14
Data bus bit 0
Data bus bit 15
Ground
Key
DMA request
Ground
35 DA0
36 DA2
37
40
43
44
CS0
38 CS1
39 DASP-
Ground
41 Power
42 Power
Ground
NC
Function
I/O write
Ground
I/O read
Ground
I/O ready
Cable select
DMA acknowledge
Ground
Interrupt request
No connection
Device address bit 1
Cable type identifier
Device address bit 0
Device address bit 2
Chip select 0
Chip select 1
LED
Ground
+5.0 V
+5.0 V
Ground
No connection
VL-EPMs-21 Reference Manual 33
Interfaces and Connectors
L
OADING
S
OFTWARE ONTO A
D
ISK
O
N
M
ODULE
D
EVICE
VersaLogic recommends that you load operating systems or other software onto a DOM device via a USB drive or through the Ethernet interface.
Warning!
If you attach a DOM to an IDE cable, be careful to preserve proper signal-to-signal integrity. Using a male-to-male adapter can cause a signal mismatch as shown below. This could result in damage to the DOM.
43
44
44
43
1
2
2
1
Female IDE
Connector
Male-to-Male
Adapter
Female DOM
Connector
Figure 13: Incorrect Mating of DOM to IDE Cable
VL-EPMs-21 Reference Manual 34
Interfaces and Connectors
Main I/O Connector (J7)
The J7 50-pin main I/O connector incorporates the COM ports, USB ports, PLED, speaker, and the reset button. Table 12 shows the function of each pin and the pinout assignments to connectors on the VL-CBR-5012 breakout board.
J7
Pin
6
7
8
9
10
11
12
1
2
3
4
5
13
14
15
20
21
22
23
24
16
17
18
19
25
26
27
28
VL-CBR-5012
Connector
COM1
J2 Top
COM2
J2 Bottom
COM3
J5
COM4
J6
USB0
J1 Top
The +5V power provided to pins 49 and 50 of J7 is protected by a 1 amp fuse.
Table 12: J7 Utility Connector Pinout
Signal
Ground
Receive Data
Clear to Send
Ground
Transmit Data
Request to Send
Ground
Receive Data
Clear to Send
Ground
Transmit Data
Request to Send
J7
Pin
29
30
31
32
33
34
35
36
37
38
39
40
RS-232 RS-422 RS-485 41
GND
RXD
GND GND 42
RXD
–
RXD
–
43
CTS RXD+ RXD+ 44
GND
TXD
RTS
GND
RXD
CTS
GND
TXD
RTS
GND GND 45
TXD
–
TXD
–
46
TXD+ TXD+ 47
GND GND 48
RXD
–
RXD
–
49
RXD+ RXD+ 50
GND GND
TXD
–
TXD
–
TXD+ TXD+
USB0 power (+5V isolated)
Data +
Data -
Ground
VL-CBR-5012
Connector Signal
USB1
J1 Bottom
USB2
J7
D1
SP1
S1
S2
Audio In
J3 Top
USB1 power (+5V isolated)
Data +
Data -
Ground
USB Client Detect Input
Data +
Data -
Ground
Programmable LED
Speaker
Power Button
Pushbutton Reset
HDA Ground (isolated)
Audio Left In
HDA Ground (isolated)
Audio Right In
Audio Out
HDA Ground (isolated)
J3 Bottom
Audio Right Out
HDA Ground (isolated)
Audio Right Out
+5V (fuse protected)
+5V (fuse protected)
VL-EPMs-21 Reference Manual 35
Interfaces and Connectors
Serial Ports
The VL-EPMs-21 features four on-board 16550-based serial channels located at standard PC I/O addresses. Connector J7 provides interfaces to the COM ports.
All COM ports can be operated in RS-232, RS-422, or RS-485 modes. The default mode is RS-
232.
Note:
To operate a serial port in RS-232 mode, the termination jumper for the port must
be removed from jumper block V1 (see Jumper Summary). Failure to remove the
jumper will cause RS-232 communications to fail.
Additional non-standard baud rates are also available (programmable in the normal baud registers) of up to 460 Kbps. The RS-232 interface is 4-wire with CTS and RTS hardware handshaking.
Interrupt assignment for each COM port is handled in CMOS Setup, and each port can be independently enabled or disabled.
Note:
It is possible to create a resource conflict if a COM port is enabled in CMOS and its I/O address space is consumed by an LPC-based SUMIT module or forwarded to the PC/104 (ISA) bus.
Note: You can improve the reliability of serial port traffic running at 11520 bps or greater by disabling the Periodic SMI option in CMOS Setup. (See KnowledgeBase article
VT1628 - EPMs-21 CMOS Setup Reference for more information.) Enabling this option gives periodic CPU time slices to Firmbase after POST completes. Firmbase primarily allows USB keyboards and mass storage devices to behave as legacy
PS/2 and IDE devices for operating systems such as DOS, which don't natively support USB.
All serial ports are protected against ESD damage. This protection exceeds the 15KV human body model.
COM P
ORT
C
ONFIGURATION
Jumper block V1 controls termination of the RS-422/485 differential pairs. See the Jumper
Summary on page 19 for details on termination configuration.
Note:
To operate a serial port in RS-232 mode, the termination jumper for the port must
be removed from jumper block V1 (see Jumper Summary). Failure to remove the
jumper will cause RS-232 communications to fail.
VL-EPMs-21 Reference Manual 36
Interfaces and Connectors
S
ERIAL
C
ONNECTOR
P
IN
F
UNCTIONS
Table 13: VL-CBR-5012 COM1 and COM2 Pinout
J2 Top
DB-9 Pin
1
2
3
4
5
6
7
8
9
J2 Bottom
DB-9 Pin
1
2
3
4
5
6
7
8
9
Signal
Name
CD
RXD*
TXD*
DTR
GND
DSR
RTS
CTS
RI
Signal
Name
CD
RXD*
TXD*
DTR
GND
DSR
RTS
CTS
RI
Function
Shorted to pins 4 & 6
Receive Data
Transmit Data
Shorted to pins 1 & 6
Ground
Shorted to pins 1 & 4
Request to Send
Clear to Send
Not connected
Function
Shorted to pins 4 & 6
Receive Data
Transmit Data
Shorted to pins 1 & 6
Ground
Shorted to pins 1 & 4
Request to Send
Clear to Send
Not connected
COM3
J5 Pin
1
2
3
4
5
Table 14: VL-CBR-5012 COM3 and COM4
COM4
J6 Pin
1
2
3
4
5
RS-232
Ground
RXD
CTS
TXD
RTS
RS-422
Ground
RxD-
RxD+
TxD-
TxD+
RS-485
Ground
RxD-
RxD+
TxD-
TxD+
VL-EPMs-21 Reference Manual 37
Interfaces and Connectors
USB Interface
Connector J7 includes interfaces for three USB ports (USB0-2). Four additional USB channels
(USB3-6), are available on the SUMIT-A connector at J2. The USB interface on the VL-EPMs-
21 is UHCI (Universal Host Controller Interface) and EHCI (Enhance Host Controller Interface) compatible, which provides a common industry software/hardware interface. On the VL-CBR-
5012 breakout board there are two Type A USB connectors and one Type B USB connector.
One of the on-board USB ports (USB2) can be configured in CMOS Setup to operate in Host or
Client mode. When operated in client mode, USB2 can operate as a USB networking or a USB mass storage device when connected to an external host computer. In other words, the Ocelot can appear as a USB mass storage device to a standard Windows XP workstation.
Programmable LED
Connector J7 includes an output signal for a programmable LED. Connect the cathode of the
LED to J7 pin 37; connect the anode to +5V. A 300Ω on-board resistor limits the current to 15 mA when the LED is shorted. A programmable LED is provided on the VL-CBR-5012 breakout board. The programmable LED is the top LED at position D1.
To turn the LED on and off, set or clear bit D7 in I/O port 1D0h. When changing the register, make sure not to alter the value of the other bits.
The following code examples show how to turn the LED on and off.
LED On
M O V
I N
O R
O U T
D X , 1 D 0 H
A L , D X
A L , 8 0 H
D X , A L
Note:
LED Off
M O V
I N
A N D
O U T
D X , 1 D 0 H
A L , D X
A L , 7 F H
D X , A L
The LED is turned on by the BIOS during system startup. This causes the light to function as a "power on" indicator if it is not otherwise controlled by user code.
The BIOS also flashes the LED in sync with “Beep Codes” when an error occurs.
Internal Speaker
Connector J7 includes a speaker output signal at pin 38. The VL-CBR-5012 breakout board provides a Piezo electric speaker.
Pushbutton Reset
Connector J7 includes an input for a pushbutton reset switch. Shorting J7 pin 40 to ground causes the VL-EPMs-21 to reboot (hardware warm reset: power is not removed).
VL-EPMs-21 Reference Manual 38
Interfaces and Connectors
Audio
The audio interface on the VL-EPMs-21 is implemented using the Integrated Device Technology
92HD75B2X3 Audio Codec. This interface is Intel High Definition Audio-compatible. Drivers are available for most Windows-based and Linux operating systems. To obtain the most current versions, consult the VL-EPMs-21 product support page.
The J7 main I/O connector provides the line-level stereo input and line-level stereo output connection points. The outputs will drive any standard-powered PC speaker set.
Table 15: VL-CBR-5012 J3 Audio Connector Pinout
J3
Pin
Signal
Name Function
1 LINE_INL
2 LINE_INR
Line-In Left
Line-In Right
3 HDA_GND HDA Ground
4 LINE_OUTL Line-Out Left
5 LINE_OUTR Line-Out Right
6 HDA_GND HDA Ground
Note: In Windows, the rear line-in audio input is not enabled as the default audio input device. To use audio input, enable the rear line-in audio input via the IDT control panel software utility.
VL-EPMs-21 Reference Manual 39
Interfaces and Connectors
PC/104 (ISA) Expansion Bus (J9-J10)
The VL-EPMs-21 supports a limited implementation of the PC/104 bus. Be sure to check the requirements of your PC/104 card against the capabilities listed in this section. The VL-EPMs-21 implements an LPC to ISA bridge. The LPC bus on the VL-EPMs-21 has multiple targets including the firmware hub, super I/O, optional LPC-based SUMIT add-on cards, and the onboard CPLD containing the PC/104 bridge, VersaLogic registers, and the SPI controller (see the figure below). Special care must be taken to avoid resource conflicts between all LPC busbased targets (including downstream buses such as PC/104 and SPI) as well as legacy devices internal to the system controller hub (SCH).
Intel
System Controller Hub
(SCH)
LPC Bus
Firmware Hub
(FWH)
Super I/O SUMIT A
CPLD
—
LPC-to-PC/104
Bridge
VersaLogic
Registers
SPI Controllers
Figure 14. VL-EPMs-21 LPC Bus
PC/104 I/O C
YCLE
S
UPPORT
I/O cycles are 8-bit by default; 16-bit cycles are supported with the following caveats.
Any PC/104 modules that are 16-bit capable must assert IOCS16#
16-bit cycles are enabled in CMOS Setup
All cycles to a 16-bit module are word-aligned (even addressed)
You cannot mix 8-bit and 16-bit PC/104 cycles to a 16-bit PC/104 module.
VL-EPMs-21 Reference Manual 40
Interfaces and Connectors
The ISA I/O ranges listed below are supported. The I/O ranges allocated to other LPC-based devices (on-board serial ports or SUMIT LPC bus modules) can conflict if forwarded to ISA bus
PC/104 modules. Be sure to configure the ISA I/O ranges and the on-board serial ports in CMOS
Setup to avoid conflicts with one another as well as SUMIT modules using the LPC bus.
0x080
0x100
– 0x1CF
0x200
– 0x2E7
0x2E8
– 0x2EF
0x2F0
– 0x2F7
0x2F8
– 0x2FF
0x300
– 0x377
0x378
– 0x3E7
0x3E8
– 0x3EF
0x3F0
– 0x3F7
0x3F8
– 0x3FF
0x400
– 0xAFF
Available base I/O addresses for on-board COM ports are: 220h, 228h, 238h, 2E8h, 2F8h, 338h,
3E8h, and 3F8h.
PC/104 M
EMORY
C
YCLE
S
UPPORT
The VL-EPMs-21 does not support ISA memory ranges. The VL-EPMs-21 does not support standard ISA memory cycles due to limitations of the Intel Atom architecture. The VL-EPMs-21 does provide a way to map up to 64 KB of ISA memory to the top of the board's memory map.
The base address of this memory map location is at 0xFFD00000. The 64 KB of ISA memory can
be enabled in four 16 KB blocks through the PC104_IRQ_EN1 register . All four memory range
blocks are enabled by default.
The VL-EPMs-21 only supports 8-bit ISA memory transaction; the 16BIT_EN register has no effect on ISA memory transactions.
IRQ S
UPPORT
The following IRQs are available on the PC/104 bus:
IRQ 3, IRQ 4, IRQ 5, IRQ 6, IRQ 7, IRQ 9, IRQ 10, IRQ 11, IRQ 12, and IRQ 15
Each of the IRQs must be enabled in CMOS Setup before it can be used on the ISA bus. Because
ISA IRQ sharing is not supported, make sure that any IRQ channel used for an ISA device is not used elsewhere. For example, if ISA IRQ 4 is enabled, you must use a different IRQ for COM1.
Not all listed IRQs may be available to the ISA bus due to operating system allocating.
DMA
AND
B
US
M
ASTER
S
UPPORT
The VL-EPMs-21 does not support PC/104 DMA or bus mastering.
VL-EPMs-21 Reference Manual 41
Interfaces and Connectors
SPX Expansion Bus (J13)
Up to four serial peripheral expansion (SPX) devices can be attached to the VL-EPMs-21 at connector J13 using the VL-CBR-1401 or VL-CBR-1402 cable. The SPX interface provides the standard serial peripheral interface (SPI) signals: SCLK, MISO, and MOSI, as well as four chip selects, SS0# to SS3#, and an interrupt input, SINT#.
The +5V power provided to pins 1 and 14 of J13 is protected by a 1 amp fuse.
Table 16: SPX Connector Pinout
J13
Pin
8
9
10
5
6
7
1
2
3
4
11
12
13
14
Signal
Name
V5_0
SCLK
GND
MISO
GND
MOSI
GND
SS0#
SS1#
SS2#
SS3#
GND
SINT#
V5_0
Function
+5V (protected)
Serial Clock
Ground
Serial Data In
Ground
Serial Data Out
Ground
Slave Select 0
Slave Select 1
Slave Select 2
Slave Select 3
Ground
Interrupt Input
+5V (protected)
SPI is, in its simplest form, a three-wire serial bus. One signal is a Clock, driven only by the permanent Master device on-board. The others are Data In and Data Out with respect to the
Master. The SPX implementation adds additional features, such as slave selects and an interrupt input to the Master. The Master device initiates all SPI transactions. A slave device responds when its slave select is asserted and it receives Clock pulses from the Master.
The SPI clock rate can be software configured to operate at speeds between 1 MHz and 8 MHz.
Please note that since this clock is divided from a 33 MHz PCI clock, the actual generated frequencies are not discrete integer MHz frequencies. All four common SPI modes are supported through the use of clock polarity and clock idle state controls.
V
ERSA
L
OGIC
SPX E
XPANSION
M
ODULES
VersaLogic offers a number of SPX modules that provide a variety of standard functions, such as analog input, digital I/O, CANbus controller, and others. These are small boards (1.2” x 3.78”) that can mount on the system stack, using SUMIT standoffs, (VL-HDW-105/106) or up to two feet away from the baseboard. For more information, contact VersaLogic at
[email protected]
.
VL-EPMs-21 Reference Manual 42
Interfaces and Connectors
SPI R
EGISTERS
A set of control and data registers are available for SPI transactions. The following tables describe the SPI control registers (SPICONTROL and SPISTATUS) and data registers
(SPIDATA3-0).
SPICONTROL (READ/WRITE) 1D8h
D7
CPOL
D6
CPHA
D5 D4 D3
SPILEN1 SPILEN0 MAN_SS
D2
SS2
D1
SS1
D0
SS0
Bit
D7
D6
D5-D4
D3
D2-D0
Table 17: SPI Control Register Bit Assignments
Mnemonic Description
CPOL
CPHA
SPILEN
SPI Clock Polarity
– Sets the SCLK idle state.
0 = SCLK idles low
1 = SCLK idles high
SPI Clock Phase
– Sets the SCLK edge on which valid data will be read.
0 = Data read on rising edge
1 = Data read on falling edge
SPI Frame Length
– Sets the SPI frame length. This selection works in manual and auto slave select modes.
SPILEN1 SPILEN0 Frame Length
0
0
1
1
0
1
0
1
8-bit
16-bit
24-bit
32-bit
MAN_SS
SS
SPI Manual Slave Select Mode
– This bit determines whether the slave select lines are controlled through the user software or are automatically controlled by a write operation to SPIDATA3 (1DDh). If MAN_SS = 0, then the slave select operates automatically; if MAN_SS = 1, then the slave select line is controlled manually through SPICONTROL bits SS2, SS1, and SS0.
0 = Automatic, default
1 = Manual
SPI Slave Select
– These bits select which slave select will be asserted. The
SSx# pin on the base board will be directly controlled by these bits when
MAN_SS = 1.
SS2 SS1 SS0 Slave Select
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
None, port disabled
SPX Slave Select 0, J13 pin-8
SPX Slave Select 1, J13 pin-9
SPX Slave Select 2, J13 pin-10
SPX Slave Select 3, J13 pin-11
Test point, TP18
SUMIT Slave Select 5, J2 pin-16
SUMIT Slave Select 6, J2 pin-18
VL-EPMs-21 Reference Manual 43
Interfaces and Connectors
SPISTATUS (READ/WRITE) 1D9h
D7
IRQSEL1
D6
IRQSEL0
D5
SPICLK1
D4 D3 D2 D1
SPICLK0 HW_IRQ_EN LSBIT_1ST HW_INT
D0
BUSY
Table 18: SPI Control Register Assignments
Bit
D7-D6
D5-D4
D3
D2
D1
D0
Mnemonic
IRQSEL
Description
IRQ Select
– These bits select which IRQ will be asserted when a hardware interrupt from a connected SPI device occurs. The HW_IRQ_EN bit must be set to enable SPI IRQ functionality.
IRQSEL1 IRQSEL0
IRQ
SPICLK
0
0
1
1
0
1
0
1
IRQ3
IRQ4
IRQ5
IRQ10
SPI SCLK Frequency
– These bits set the SPI clock frequency.
SPICLK1 SPICLK0
Frequency
0
0
1
1
0
1
0
1
1.042 MHz
2.083 MHz
4.167 MHz
8.333 MHz
HW_IRQ_EN
Hardware IRQ Enable
– Enables or disables the use of the selected IRQ
(IRQSEL) by an SPI device.
0 = SPI IRQ disabled, default
1 = SPI IRQ enabled
Note: When an IRQ is enabled for the SPX bus, it has priority over the PC/104 bus. For example, if IRQ5 is routed to the PC/104 bus and enabled for the SPX bus, it will not be available to the PC/104 bus.
LSBIT_1ST
SPI Shift Direction
– Controls the SPI shift direction of the SPIDATA registers.
The direction can be shifted toward the least significant bit or the most significant bit.
HW_INT
0 = SPIDATA data is left-shifted (MSbit first), default
1 = SPIDATA data is right-shifted (LSbit first)
SPI Device Interrupt State
– This bit is a status flag that indicates when the hardware SPX signal SINT# is asserted.
BUSY
0 = Hardware interrupt on SINT# is deasserted
1 = Interrupt is present on SINT#
This bit is readonly and is cleared when the SPI device’s interrupt is cleared.
SPI Busy Flag
– This bit is a status flag that indicates when an SPI transaction is underway.
0 = SPI bus idle
1 = SCLK is clocking data in and out of the SPIDATA registers
This bit is read-only.
VL-EPMs-21 Reference Manual 44
Interfaces and Connectors
SPIDATA0 (READ/WRITE) 1DAh
D7
MSbit
D6 D5 D4 D3 D2 D1 D0
LSbit
SPIDATA1 (READ/WRITE) 1DBh
D7
MSbit
D6 D5 D4 D3 D2 D1 D0
LSbit
SPIDATA2 (READ/WRITE) 1DCh
D7
MSbit
D6 D5 D4 D3 D2 D1 D0
LSbit
SPIDATA3 (READ/WRITE) 1DDh
D7
MSbit
D6 D5 D4 D3 D2 D1 D0
LSbit
SPIDATA3 contains the most significant byte (MSB) of the SPI data word. A write to this register will initiate the SPI clock and, if the MAN_SS bit = 0, will also assert a slave select to begin an SPI bus transaction. Increasing frame sizes from 8-bit uses the lowest address for the least significant byte of the SPI data word; for example, the LSB of a 24-bit frame would be
SPIDATA1. Data is sent according to the LSBIT_1ST setting. When LSBIT_1ST = 0, the MSbit of SPIDATA3 is sent first, and received data will be shifted into the LSbit of the selected frame size set in the SPILEN field. When LSBIT_1ST = 1, the LSbit of the selected frame size is sent first, and the received data will be shifted into the MSbit of SPIDATA3.
VL-EPMs-21 Reference Manual 45
System Resources and Maps
Memory Map
The lower 1 MB memory map of the VL-EPMs-21 is arranged as shown in the following table.
Various blocks of memory space between A0000h and FFFFFh are shadowed.
Table 19: Memory Map
Start
Address
End
Address
F0000h FFFFFh
E0000h
C0000h
A0000h
00000h
EFFFFh
DFFFFh
BFFFFh
9FFFFh
Comment
System BIOS Area
Extended System BIOS Area
Expansion Area
Legacy Video Area
Legacy System Area
I/O Map
The following table lists the common I/O devices in the VL-EPMs-21 I/O map. User I/O devices should be added using care to avoid the devices already in the map as shown in the following table.
Table 20: On-Board I/O Devices
I/O Device
Secondary Hard Drive Controller
PLED and Product ID Register
Revision and Type ID Register
Video BIOS and GPI Register
WDT and HWM Register
PC/104 Block Enable Registers
SPX Registers
PC104 IRQ Enable Registers
Primary Hard Drive Controller
COM4 Serial Port Default
COM2 Serial Port Default
Secondary Hard Drive Controller
COM3 Serial Port Default
Primary Hard Drive Controller
COM1 Serial Port Default
Standard
I/O
Addresses
170h
– 177h
1D0h
1D1h
1D2h
1D3h
1D4h
– 1D5h
1D8h
– 1DDh
1DEh
– 1DFh
1F0h
– 1F7h
2E8h
– 2EFh
2F8h
–2FFh
374h
– 376h
3E8h
– 3EFh
3F4h
–3F6h
3F8h
– 3FFh
Note: The I/O port traffic is always present on the LPC bus and care must be taken to avoid conflicts among on-board devices, PC/104, and SUMIT modules.
VL-EPMs-21 Reference Manual 46
Interfaces and Connectors
VersaLogic recommends that you perform an I/O port scan of the PC/104 bus under the operating system of choice to assist you in avoiding resource conflicts. The following table shows an example of a port scan of the VL-EPMs-21 under test, running DOS 6.22. This example is not necessarily an accurate description for the results under Windows, Linux, VxWorks, or other operating systems. Each system will be different depending on how the board is configured.
Legacy IRQs should also be scanned.
Table 21: Example PC/104 I/O Port Scan
I/O Ports Not Present
0x081
– 0x0FF
0x170
– 0x177
0x1D0
– 0x1FF
0x374
– 0x376
0x3B0
– 0x3BB
0x3C0
– 0x3DF
0x3F4
– 0x3F6
0x4D0
– 0x4D1
0x500
– 0x53F
I/O Ports Present
0x080
0x100
– 0x16F
0x178
– 0x1CF
0x200
– 0x373
0x377
– 0x3AF
0x3BC
– 0x3BF
0x3E0
– 0x3F3
0x3F7
– 0x4CF
0x4D2
– 0x4FF
0x540
– 0xAFF
Conditions: All PC/104 I/O blocks enabled, all on-board serial ports disabled.
VL-EPMs-21 Reference Manual 47
Interfaces and Connectors
Interrupt Configuration
Table 22: Interrupt Configuration
= default setting = allowed setting
Source
Timer 0
Keyboard
Slave PIC
COM1
COM2
COM3
COM4
RTC
Mouse
Math Chip
Pri. IDE
ISA IRQ3
ISA IRQ4
ISA IRQ5
ISA IRQ6
ISA IRQ7
ISA IRQ9
ISA IRQ10
ISA IRQ11
ISA IRQ12
ISA IRQ15
PCI INTA#
PCI INTB#
PCI INTC#
PCI INTD#
1
0
2
3 4 5 6 7
IRQ
8
9 10 11 12 13 14 15
VL-EPMs-21 Reference Manual 48
VersaLogic Registers
PLED and Product ID Register
D7
PLED
PLEDPC (Read/Write) 1D0h
D6
PC6
D5
PC5
D4
PC4
D3
PC3
D2
PC2
D1
PC1
D0
PC0
Bit
D7
D6-D0
Mnemonic
PLED
PC
Table 23: PLED and Product Code Register Bit Assignments
Description
Light Emitting Diode
— Controls the programmable LED on connector J7.
0 = Turns LED off
1 = Turns LED on
Product Code
— These bits are hard-coded to represent the product type. The
VL-EPMs-21 always reads as 0000011. Other codes are reserved for future products.
PC6 PC5 PC4 PC3 PC2
PC1 PC0
0 0 0 0
These bits are read-only.
0 1 1
Product Code
VL-EPMs-21
VL-EPMs-21 Reference Manual 49
Special Registers
Revision and Type Register
REVTYP (Read Only) 1D1h
D7
PR4
D6
PR3
D5
PR2
D4
PR1
D3
PR0
D2
TEMP
D1
CUSTOM
D0
BETA
This register is used to indicate the revision level of the VL-EPMs-21 and PLD firmware.
Table 24: Revision and Type Register Bit Assignments
Bit
D7-D3
D2
D1
D0
Mnemonic Description
PR PLD Revision Code
— These bits are hard-coded and represent the CPLD revision.
TEMP
PR4 PR3 PR2 PR1 PR0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
1
Revision
Rev. 0.23 and 0.24
Rev. 0.31 and 1.00
Rev. 1.00
These bits are read-only.
Temperature Rating
— This bit indicates whether the EPMs-21 is rated for standard or extended temperature operation.
CUSTOM
BETA
0 = Standard temperature operation
1 = Extended temperature operation
This bit is read-only.
PLD Class
— This bit indicates whether the PLD code is standard or customized.
0 = Standard PLD code
1 = Custom PLD code
This bit is read-only.
PLD Level
— This bit indicates if the PLD code is at the beta or production level.
0 = Production level PLD
1 = Beta level PLD
This bit is read-only.
VL-EPMs-21 Reference Manual 50
Special Registers
GPI Jumper Register
D7
Reserved
GPI (Read Only) 1D2h
D6
Reserved
D5
Reserved
D4
Reserved
D3
Reserved
D2 D1
Reserved GPI_JMP
Table 25: GPI Jumper Register Bit Assignments
D0
CMOSRST
Bit
D7-D2
D1
D0
Mnemonic Description
Reserved
GPI_JMP
These bits have no function.
General Purpose Input Jumper
— Indicates the status of jumper V2[1-2].
0 = Jumper out
1 = Jumper in
This bit is read-only.
CMOSRST CMOS Reset
— Indicates the status of jumper V2[3-4].
0 = Jumper out, normal operation
1 = Jumper in, reset CMOS to factory defaults
This bit is read-only.
VL-EPMs-21 Reference Manual 51
Special Registers
Watchdog Timer Register
This register controls the behavior of the System Management Controller if the Super I/O hardware monitor or watchdog timer interrupt pins have been asserted. The actual conditions and setup of the hardware monitor and watchdog timer are configured in the SMSC SCH3114 and
Intel SCH ACPI register interface.
D7
WDT_ST
WDTHWM (Read Only) 1D3h
D6
Reserved
D5 D4 D3 D2 D1 D0
WDT_MD1 WDT_MD0 HWM_INT_ST Reserved HWM_INT1 HWM_INT0
Table 26: Watchdog Timer Register Bit Assignments
Bit
D7
D6
D5-D4
D3
D2
D1-D0
Mnemonic Description
WDT_ST Watchdog Timer Status
– This bit shows the condition of the GP60/nLED1/WDT pin (pin 94) on the SMSC3114. This pin can be configured as the watchdog timer flag to assert when a timeout has occurred.
0 = when the super I/O pin GP60/nLED1/WDT WDT = 1
1 = when the super I/O pin GP60/nLED1/WDT WDT = 0
Reserved
WDT_MD
This bit has no function.
Watchdog Timer Mode
– These bits set the behavior of the System
Management Controller for the watchdog timer. On detecting a watchdog timeout, the System Mgt. Controller can perform a system-wide hardware reset (power is not removed), cold reset (power is shutdown for approx. 4 sec.), or can shut down the board.
WDT_MD1 WDT_MD0
0 0
0 1
Mode
Do nothing
Cold reset
1 0 Power Cycle (3 sec. off time)
1 1 Power off
HWMINT_ST
Hardware Monitor Interrupt Status
– This bit shows the condition of the nHWM_INT pin (pin 114) on the SMSC3114. This pin can be set up as the hardware monitor interrupt flag to assert when a configured fault condition occurs.
0 = when the super I/O pin, nHWM_INT = 1
1 = when the super I/O pin, nHWM_INT = 0
Reserved This bit has no function.
HWM_INT Hardware Monitor Interrupt
– These bits set the behavior of the System
Management Controller for the hardware monitor. On detecting the nHWM_INT super I/O pin asserted, the System Management Controller can activate the thermal alarm to the US15WP SCH, perform a cold reset (power is shutdown for approx. 4 sec.), or can shut down the board. The thermal alarm can be used by
ACPI software to tell the SCH to initiate configurable thermal control measures for the CPU and chipset I/O devices.
HWM_INT1
HWM_INT0 INT
0
0
1
1
0
1
0
1
Do nothing
Assert THRM#
Cold reset
Power off
VL-EPMs-21 Reference Manual 52
Special Registers
PC/104 I/O Block Enable Registers
These registers are used to configure the LPC-to-PC/104 bus bridge. I/O port addresses are divided into blocks. Each block has its own enable bit that allows the I/O ports within the block to be forwarded from the LPC bus to the PC/104 bus and vice versa. These registers are set in
CMOS Setup, but are accessible to user software for runtime configuration as well.
Enabling a particular I/O range block does not necessarily mean the full range will be available on the PC/104 bus if other devices are already consuming ports within the block range. See the
PC104_BLK_EN0 (Read/Write) 1D4h
D7 D6 D5 D4 D3 D2 D1 D0
IOBLK_EN7 IOBLK_EN6 IOBLK_EN5 IOBLK_EN4 IOBLK_EN3 IOBLK_EN2 IOBLK_EN1 IOBLK_EN0
Table 27: PC/104 I/O Block Enable Register 0 Bit Assignments
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Mnemonic Description
IOBLK_EN7
PC/104 I/O port range 0x378 - 0x3E7 enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus
IOBLK_EN6
PC/104 I/O port range 0x300 - 0x377 enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus
IOBLK_EN5
PC/104 I/O port range 0x2F8 - 0x2FF enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus
IOBLK_EN4
PC/104 I/O port range 0x2F0 - 0x2F7 enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus
IOBLK_EN3
PC/104 I/O port range 0x2E8 - 0x2EF enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus
IOBLK_EN2
PC/104 I/O port range 0x200 - 0x2E7 enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus
IOBLK_EN1
PC/104 I/O port range 0x100 - 0x1CF enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus
IOBLK_EN0
PC/104 I/O port 0x080 enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus (default)
VL-EPMs-21 Reference Manual 53
Special Registers
D7
Reserved
PC104_BLK_EN1 (Read/Write) 1D5h
D6
Reserved
D5
Reserved
D4 D3 D2 D1 D0
Reserved IOBLK_EN11 IOBLK_EN10 IOBLK_EN9 IOBLK_EN8
Table 28: PC/104 I/O Block Enable Register 1 Bit Assignments
Bit
D7-D4
D3
D2
D1
D0
Mnemonic Description
Reserved
These bits have no function.
IOBLK_EN11
PC/104 I/O port range 0x400 - 0xAFF enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus
IOBLK_EN10
PC/104 I/O port range 0x3F8 - 0x3FF enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus
IOBLK_EN9
PC/104 I/O port range 0x3F0 - 0x3F7 enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus
IOBLK_EN8
PC/104 I/O port range 0x3E8 - 0x3EF enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus
VL-EPMs-21 Reference Manual 54
Special Registers
PC/104 Interrupt Request Enable Registers
These registers are used to configure PC/104 bus IRQs. Legacy IRQs on the Serial IRQ (LPC) bus each have an enable bit that allows the IRQ to be forwarded from the PC/104 bus to the Serial
IRQ (LPC) bus. These registers are set in CMOS Setup, but are accessible to user software for runtime configuration as well.
Not all IRQs listed will necessarily be available for use on the PC/104 bus. Be sure to note which legacy IRQs are assigned by the operating system to other devices before enabling them for the
PC/104 bus to avoid conflicts.
D7
PC104_IRQ_EN0 (Read/Write) 1DEh
D6
IRQ11_EN IRQ10_EN
D5
IRQ9_EN
D4
IRQ7_EN
D3
IRQ6_EN
D2
IRQ5_EN
D1
IRQ4_EN
Table 29: PC/104 Interrupt Request Register 0 Bit Assignments
D0
IRQ3_EN
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Mnemonic Description
IRQ11_EN PC/104 IRQ11 enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus
IRQ10_EN PC/104 IRQ10 enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus
IRQ9_EN
IRQ7_EN
PC/104 IRQ9 enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus
PC/104 IRQ7 enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus
IRQ6_EN
IRQ5_EN
IRQ4_EN
IRQ3_EN
PC/104 IRQ6 enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus
PC/104 IRQ5 enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus
PC/104 IRQ4 enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus
PC/104 IRQ3 enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus
VL-EPMs-21 Reference Manual 55
Special Registers
PC104_IRQ_EN1 (Read/Write) 1DFh
D7 D6 D5 D4 D3
16BIT_EN MEM_EN3 MEM_EN2 MEM_EN1 MEM_EN0
D2
Reserved
D1 D0
IRQ15_EN IRQ12_EN
Table 30: PC/104 Interrupt Request Register 1 Bit Assignments
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Mnemonic Description
16BIT_EN
PC/104 16 bit I/O cycle enable
– This bit controls 16bit I/O cycles on the PC/104 bus. When enabled, the bridge expects two consecutive 8-bit cycles from the LPC bus before forwarding the data to the PC/104 bus as a single 16-bit cycle.
0 = all I/O cycles are 8-bit on PC/104 bus
1 = 16-bit I/O cycles enabled on PC/104 bus
MEM_EN3
ISA Memory Access
– 16 KB ISA memory window 0x000DC000 to
0x000DFFFF forwarded to 0xFFD0C000 to 0xFFD0FFFF.
0 = disable on PC/104 bus
1 = enable on PC/104 bus
MEM_EN2
ISA Memory Access
– 16 KB ISA memory window 0x000D8000 to 0x000DBFFF forwarded to 0xFFD08000 to 0xFFD0BFFF.
0 = disable on PC/104 bus
1 = enable on PC/104 bus
MEM_EN1
ISA Memory Access
– 16 KB ISA memory window 0x000D4000 to 0x000D7FFF forwarded to 0xFFD04000 to 0xFFD07FFF.
0 = disable on PC/104 bus
1 = enable on PC/104 bus
MEM_EN0
ISA Memory Access
– 16 KB ISA memory window 0x000D0000 to 0x000D3FFF forwarded to 0xFFD00000 to 0xFFD03FFF.
0 = disable on PC/104 bus
Reserved
1 = enable on PC/104 bus
These bits have no function.
IRQ15_EN PC/104 IRQ15 enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus
IRQ12_EN PC/104 IRQ12 enable
0 = disabled on PC/104 bus
1 = enabled on PC/104 bus
VL-EPMs-21 Reference Manual 56
Appendix A
– References
PC Chipset
Intel Atom
Ethernet Controller
Intel 82574L Ethernet Controller
PC/104 Interface
SUMIT Interface
Intel Atom Datasheet
Intel 82574L Datasheet
PC/104 Specification
SUMIT Specification
VL-EPMs-21 Reference Manual 57
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Table of contents
- 7 Introduction
- 7 Description
- 7 Features and Construction
- 8 Technical Specifications
- 9 VL-EPMs-21 Block Diagram
- 10 RoHS Compliance
- 10 About RoHS
- 10 Warnings
- 10 Electrostatic Discharge
- 10 Lithium Battery
- 11 Handling Care
- 11 Technical Support
- 12 Repair Service
- 13 Configuration and Setup
- 13 Initial Configuration
- 13 Basic Setup
- 16 CMOS Setup
- 16 Operating System Installation
- 17 Physical Details
- 17 Dimensions and Mounting
- 17 VL-EPMs-21 Dimensions
- 18 VL-CBR-5012 Dimensions
- 19 Hardware Assembly
- 19 Stack Arrangement Example
- 20 External Connectors
- 20 VL-EPMs-21 Connector Locations – Top
- 21 VL-EPMs-21 Connector Locations – Bottom
- 22 VL-EPMs-21 Connector Functions and Interface Cables
- 23 Connector Locations – VL-CBR-5012
- 23 VL-CBR-5012 Connector Functions
- 24 Jumper Blocks
- 24 Jumpers As-Shipped Configuration
- 25 Jumper Summary
- 26 System Features
- 26 Power Supply
- 26 Power Connectors
- 27 Power Requirements
- 27 Power Cycling
- 27 SUMIT +5V Standby Power
- 27 Lithium Battery
- 27 CPU
- 28 System RAM
- 28 CMOS RAM
- 28 Resetting CMOS Setup to Factory Defaults
- 28 Clearing the Real-Time Clock
- 28 CMOS Setup Defaults
- 29 Default CMOS RAM Setup Values
- 29 Real Time Clock
- 29 Setting the Clock
- 29 ACPI Power Management
- 29 S3 Sleep State
- 29 Setup
- 30 Entering Standby Mode
- 30 SetSystemPowerState Function
- 30 Wakeup
- 30 Power and Reset Button Functionality
- 31 Watchdog Timer
- 32 Interfaces and Connectors
- 32 SUMIT Connectors (J1-J2)
- 34 Ethernet Interface (J3)
- 34 Ethernet Connector
- 34 Ethernet Status LEDs
- 35 Video Interface (J4 and J6)
- 35 Display Control
- 35 Configuration
- 36 LVDS Flat Panel Display Connector
- 37 Compatible LVDS Panel Displays
- 37 VGA Output
- 38 Console Redirection
- 38 Null Modem
- 39 IDE / PATA Interface (J5)
- 40 Loading Software onto a Disk On Module Device
- 41 Main I/O Connector (J7)
- 42 Serial Ports
- 42 COM Port Configuration
- 43 Serial Connector Pin Functions
- 44 USB Interface
- 44 Programmable LED
- 44 Internal Speaker
- 44 Pushbutton Reset
- 45 Audio
- 46 PC/104 (ISA) Expansion Bus (J9-J10)
- 46 PC/104 I/O Cycle Support
- 47 PC/104 Memory Cycle Support
- 47 IRQ Support
- 47 DMA and Bus Master Support
- 48 SPX Expansion Bus (J13)
- 48 VersaLogic SPX Expansion Modules
- 49 SPI Registers
- 52 System Resources and Maps
- 52 Memory Map
- 52 I/O Map
- 54 Interrupt Configuration
- 55 VersaLogic Registers
- 55 PLED and Product ID Register
- 56 Revision and Type Register
- 57 GPI Jumper Register
- 58 Watchdog Timer Register
- 59 PC/104 I/O Block Enable Registers
- 61 PC/104 Interrupt Request Enable Registers
- 63 Appendix A – References