Ampro Corporation MightyBoard 821 Specifications

Ampro Corporation MightyBoard 821 Specifications
MightyBoard 821
Single Board Computer
Reference Manual
P/N 5001784B Revision A
Notice Page
NOTICE
No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or
translated into any language or computer language, in any form or by any means, electronic, mechanical,
magnetic, optical, chemical, manual, or otherwise, without the prior written permission of Ampro
Computers, Incorporated.
DISCLAIMER
Ampro Computers, Incorporated makes no representations or warranties with respect to the contents of this
manual or of the associated Ampro products, and specifically disclaims any implied warranties of
merchantability or fitness for any particular purpose. Ampro shall under no circumstances be liable for
incidental or consequential damages or related expenses resulting from the use of this product, even if it has
been notified of the possibility of such damages. Ampro reserves the right to revise this publication from
time to time without obligation to notify any person of such revisions. If errors are found, please contact
Ampro at the address listed below on the Notice page of this document.
TRADEMARKS
Ampro and the Ampro logo are registered trademarks, and CoreModule, Little Board, LittleBoard,
MightyBoard, MightySystem, MiniModule, ReadyBoard, ReadyBox, ReadyPanel, ReadySystem,
RuffSystem are trademarks of Ampro Computers, Inc. All other marks are the property of their respective
companies.
REVISION HISTORY
Revision
Reason for Change
Date
A, A
Initial Release
Dec/06
A, B
Correction to move pin 1 on J21
Feb/07
A, C
Removed reference to Design Library in
Mechanical Specifications
Dec/07
B, A
Removed TV-Out; added LAN LED
jumper pins; corrected block diagram;
added reference to Design Library back
into Mechanical Specification
Aug/08
Ampro Computers, Incorporated
5215 Hellyer Avenue
San Jose, CA 95138-1007
Tel. 408 360-0200
Fax 408 360-0222
www.ampro.com
© Copyright 2007, 2008 Ampro Computers, Incorporated
Audience
This manual provides reference only for computer design engineers, including but not limited to hardware
and software designers and applications engineers. Ampro Computers, Inc. assumes you are qualified to
design and implement prototype computer equipment.
ii
Reference Manual
MightyBoard 821
Contents
Chapter 1
About This Manual ....................................................................................................1
Purpose of this Manual ....................................................................................................................1
References ......................................................................................................................................1
Chapter 2
Product Overview......................................................................................................3
MightyBoard Architecture.................................................................................................................3
Product Description..........................................................................................................................4
Board Features ..........................................................................................................................4
Block Diagram ............................................................................................................................7
Major Components (ICs).............................................................................................................7
Connector and Header Definitions..............................................................................................9
Additional Components.............................................................................................................10
Jumper Definitions ....................................................................................................................11
Specifications.................................................................................................................................11
Power Specifications ................................................................................................................11
Environmental Specifications....................................................................................................12
Thermal/Cooling Requirements ................................................................................................12
Physical Specifications .............................................................................................................13
Mechanical Specifications ........................................................................................................13
Chapter 3
Hardware .................................................................................................................15
Overview ........................................................................................................................................15
Interrupt Channel Assignments ................................................................................................16
Memory Map ............................................................................................................................16
I/O Address Map ......................................................................................................................17
Serial Interfaces ............................................................................................................................18
Keyboard/Mouse Interfaces ...........................................................................................................20
Keyboard Interface ...................................................................................................................20
Mouse Interface ........................................................................................................................21
USB Interfaces...............................................................................................................................21
USB 2.0 Support.......................................................................................................................21
Legacy USB Support ...............................................................................................................21
USB4 and USB5 .......................................................................................................................21
Audio Interface ..............................................................................................................................22
Video Interfaces .............................................................................................................................22
LVDS Interface ........................................................................................................................23
Utility Interface ..............................................................................................................................24
External Power-On Switch........................................................................................................24
External Reset Switch...............................................................................................................24
External Speaker (Beep) .........................................................................................................24
External Power-On LED ...........................................................................................................24
External IDE Activity LED .........................................................................................................24
Miscellaneous ................................................................................................................................25
Real Time Clock (RTC) ............................................................................................................25
External Battery (BT1) ..............................................................................................................25
Temperature Monitoring ..........................................................................................................25
User GPIO Signals (J8) ............................................................................................................25
Ethernet External LED ..............................................................................................................26
Serial Console ..........................................................................................................................26
MightyBoard 821
Reference Manual
iii
Contents
Infrared (IrDA) Port .................................................................................................................. 26
Watchdog Timer....................................................................................................................... 27
Power Interfaces .......................................................................................................................... 27
ATX Power Supply Interface ................................................................................................... 27
Optional CPU Fan .................................................................................................................... 28
Optional System Fan ............................................................................................................... 28
Power and Sleep States................................................................................................................ 28
Power-On Switch .................................................................................................................... 28
Sleep States (ACPI) ................................................................................................................. 29
Chapter 4
BIOS Setup .............................................................................................................. 31
Introduction.................................................................................................................................... 31
Entering BIOS Setup (VGA Display) ........................................................................................ 31
Entering BIOS Setup (Remote Access) .................................................................................. 31
Logo screen .................................................................................................................................. 32
Logo Screen Image Requirements .......................................................................................... 32
Appendix A
Technical Support .................................................................................................. 33
List of Figures
Figure 2-1.
Figure 2-2.
Figure 2-3.
Figure 2-4.
Figure 2-5.
Figure 3-1.
MightyBoard and ATX Style Boards Compared ...................................................... 3
Functional Block Diagram ....................................................................................... 7
Component Locations ............................................................................................ 8
Connector and Header Locations ......................................................................... 10
Back Panel Overview ............................................................................................ 13
RS485 Serial Port Implementation ........................................................................ 18
List of Tables
Table 2-1.
Table 2-2.
Table 2-3.
Table 2-4.
Table 2-5.
Table 2-6.
Table 2-7.
Table 2-8.
Table 3-1.
Table 3-2.
Table 3-3.
Table 3-4.
Table 3-5.
Table 3-6.
Table 3-7.
Table 3-8.
Table 3-9.
Table 3-10.
Table 3-11.
Table 3-12.
Table 3-13.
Table 3-14.
Table A-1.
Major Component Descriptions and Functions ....................................................... 8
Connector and Header Descriptions ....................................................................... 9
Additional Component Descriptions ...................................................................... 10
Jumper Settings .................................................................................................... 11
System Power Requirements (1.5 GHz CPU)....................................................... 11
System Power Requirements (2.0 GHz CPU)....................................................... 12
Environmental Requirements ................................................................................ 12
Weight and Footprint Dimensions ......................................................................... 13
Interrupt Channel Assignments ............................................................................. 16
Memory Map ......................................................................................................... 17
I/O Address Map ................................................................................................... 17
Serial 2 (COM2) Interface Pin/Signal Descriptions (J6) ........................................ 19
Serial 3 and 4 (COM3 and COM4) Interface Pin/Signal Descriptions (J15) .......... 19
USB Ports 4 & 5 Interface Pin/Signal Descriptions (J21) ...................................... 21
LVDS Interface Pin/Signal Descriptions (J2) ......................................................... 23
Utility Interface Pin/Signal Descriptions (J17) ....................................................... 24
User GPIO Signals Pin/Signal Descriptions (J10) ................................................. 25
Ethernet External LED Pin/Signal Descriptions (JP6) ........................................... 26
Infrared (IrDA) Interface Pin/Signal Descriptions (J7) ........................................... 26
ATX Power Supply Interface Pin/Signal Descriptions (J2) .................................... 27
Optional CPU Fan Interface Pin/Signal Descriptions (J12) ................................... 28
Optional System Fan Interface Pin/Signal Descriptions (J22)............................... 28
Technical Support Contact Information ................................................................. 33
iv
Reference Manual
MightyBoard 821
Chapter 1
About This Manual
Purpose of this Manual
This manual is for designers of systems based on the MightyBoard 821™ single board computer (SBC). The
information in this manual helps designers create embedded systems based on specific design requirements.
Information provided in this reference manual includes:
•
MightyBoard 821 Specifications
•
Environmental requirements
•
Major integrated circuits (chips) and features implemented
•
MightyBoard 821 connector/pin numbers and definitions
•
BIOS Setup information
Information not provided in this reference manual includes:
•
Detailed chip specifications
•
Internal component operation
•
Internal registers or signal operations
•
Bus or signal timing for industry standard busses and signals
References
The following list of references may be helpful for you to complete your design successfully. Some of this
material is also available on the Ampro web site in the InfoCenter. The InfoCenter was created for
embedded system developers to share Ampro’s knowledge, insight, and expertise.
Specifications
•
PCI Express Compliant Specifications
For the latest revision of the PCI Express specifications, contact the PCI Special Interest Group
Office at:
Web site: http://www.pcisig.com
•
Audio CODEC 1997 Standard, including all revisions
For latest version of the Audio (AC'97) standard developed by Intel Corporation, refer to:
Web site: http://www.intel.com/design/chipsets/audio
Chip specifications used on the MightyBoard 821:
•
Intel Corporation and the Pentium® M or Celeron® M CPUs, and the chips 915GM and 82801FB
ICH6-M, used for the Memory Hub (Northbridge/Video controller) and I/O Hub (Southbridge)
respectively.
Web site: http://www.intel.com
•
Nuvoton Technology, Corp. and the W83627HF chip used for the Super I/O controller
Web site: http://www.nuvoton-usa.com/products/winbond_products/pdfs/PCIC/W83627HF_HGb.pdf
•
FinTek and the F81216D chip used for the Secondary I/O (LPC UART) controller (48-pin)
Web site: http://www.fintek.com.tw/eng/
MightyBoard 821
Reference Manual
1
Chapter 1
•
About This Manual
Intel Corporation and the Gigabit Ethernet PCI Express 82573V, used for the Gigabit Ethernet
controller.
Web site: http://www.intel.com/design/network/products/lan/controllers/82573.htm
NOTE
2
If you are unable to locate the datasheets using the links provided, go to the
manufacturer’s web site where you should be able to perform a search using
the chip datasheet number or name listed, including the extension such as
htm or pdf.
Reference Manual
MightyBoard 821
Chapter 2
Product Overview
This introduction presents general information about the Mini-ITX form factor and the MightyBoard 821
single board computer (SBC). After reading this chapter you should understand:
• MightyBoard 821 architecture
• MightyBoard 821 features
• Major components
• Connectors
• Specifications
MightyBoard Architecture
Ampro’s MightyBoard™ is based on the Mini-ITX form factor, which uses the smallest motherboard size,
measuring a mere 170mm x 170mm (6.7" x 6.7"). The MightyBoard size complies with the ATX mechanical
standard in terms of mounting holes, PCI slot placement, and I/O connector placement. The MightyBoard
can be used in any enclosure, which supports ATX, MicroATX or FlexATX motherboards. Unlike Ampro’s
other SBCs (single board computers), which support the PC/104, PC/104-Plus, and PCI-104 standards, the
MightyBoard provides a single PCI slot for I/O expansion.
The MightyBoard form-factor is small enough for deeply embedded applications, yet large enough to
contain the functions of a complete embedded SBC including CPU, memory, mass storage interfaces,
display controller, serial/parallel ports, today’s advanced operating systems, and other system functions.
This new embedded form factor boasts a highly flexible and adaptable system expansion, allowing easy PCI
board addition of functions such as IEEE 1394 FireWire™, video capture, or wireless networking not
usually contained in embedded motherboards.
This new MightyBoard SBC ensures that embedded system OEMs can standardize their designs and that
embedded computing solutions can be designed into space constrained environments with off-the-shelf
components. The MightyBoard SBC is open to continuing technology advancements, since it is both
processor and I/O independent. It creates opportunity for economies of scale in chassis, power supply, and
peripheral devices.
Mini-ITX
(MightyBoard)
6.7" x 6.7"
PCI Slot
PCI Slot
PCI Slot
Full Size
ATX
9.6" x 12"
PCI Slot
Rear I/O Location
Flex ATX
7.5" x 9"
Micro ATX
9.6" x 9.6"
Figure 2-1. MightyBoard and ATX Style Boards Compared
MightyBoard 821
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3
Chapter 2
Product Overview
Product Description
The MightyBoard 821 is an exceptionally high integration, high performance, rugged, and high quality
single-board computer, which contains all the component subsystems of an ATX motherboard plus a single
PCI expansion slot. Based on Intel processors (Pentium M or Celeron M), the MightyBoard 821 gives
designers a complete, high performance embedded processor based on the Mini-ITX form factor.
Each MightyBoard 821 incorporates an Intel 915GM chipset (82915GM + 82801FBM) and provides four
serial ports, an EPP/ECP parallel port, six USB 2.0 ports, PS/2 keyboard and mouse interfaces, and one
Ultra DMA 33/66/100 IDE controller supporting two IDE drives, two independent 10/100BaseTX and
1000BaseT Ethernet interfaces, and an audio AC'97 CODEC on the board. The MightyBoard 821 also
supports up to 2GB of SDRAM in a single 184-pin DDR DIMM slot, and an AGP4x equivalent graphics
controller, which provides CRT and LVDS flat panel video interfaces for the most popular LCD panels.
The MightyBoard 821 can be expanded through a single x16 PCI Express (PCIe) bus slot for additional
system functions. This PCIe bus operates at clock speeds up to 100MHz.
Among the many embedded-PC enhancements on the MightyBoard 821 that ensure embedded system
operation and application versatility are a watchdog timer, serial console support, battery-free boot, and
BIOS extensions for OEM boot customization.
The MightyBoard 821 is particularly well suited to either embedded or portable applications and meets the
size, power consumption, temperature range, quality, and reliability demands of embedded system
applications. The MightyBoard 821 requires an ATX power supply or a single +5V power supply.
Board Features
•
•
•
•
•
•
4
CPU Features
♦
2.0GHz Intel Pentium® M 760 or 1.5GHz Celeron® M 370
♦
Front Side Bus (FSB) of 533MHz for the 2.0GHz Pentium, 400MHz for the 1.5GHz Celeron
Memory
♦
Provides two standard 200-pin DDR2 DIMM slots
♦
Supports two +2.5V DDR2 DIMMs up to 2GB
♦
Supports up to 2GB DDR2 (533MHz) SDRAM
♦
Supports unregistered/unbuffered non-ECC DDR2 RAM
PCI Express Bus x16 Slot Interface
♦
Provides a single PCIe slot
♦
Supports PCIe bus speed up to 4 GBps, each direction
Serial ATA Interface (SATA)
♦
Supports two 7-pin SATA ports
♦
Provides 1.5 GB/second data transfer rate
IDE Interface
♦
Provides one enhanced IDE controller (2 devices)
♦
Provides one 40-pin IDE connector
♦
Supports dual bus master mode
♦
Supports Ultra DMA 33/66/100 modes
♦
Supports ATAPI and DVD peripherals
♦
Supports IDE native and ATA compatibility modes
Parallel Port
Reference Manual
MightyBoard 821
Chapter 2
•
•
•
•
•
•
Product Overview
♦
Provides standard printer port
♦
Supports IEEE standard 1284 protocols of EPP and ECP outputs
♦
Provides bi-directional data lines
♦
Supports 16 byte FIFO for ECP mode
USB Ports
♦
Provides two root USB hubs
♦
Provides six USB ports
♦
Supports USB bootable devices
♦
Supports USB 2.0 and legacy USB v1.1
♦
Supports over-current fuses on board
♦
Supports over-current detection status on board
Serial Ports
♦
Provides four buffered serial ports with full handshaking
♦
Provides 16550-equivalent controllers, each with a built-in 16-byte FIFO buffer
♦
Supports RS232 capability on all four ports
♦
Supports full modem capability on three of the four ports
♦
Supports RS485 or RS422 operation on two of the four ports
♦
Supports programmable word length, stop bits, and parity
♦
Supports 16-bit programmable baud-rate generator and an interrupt generator
Infrared Interface
♦
Provides a five-pin IrDA interface header (J7)
♦
Supports IrDA v1.1
♦
Supports HPSIR and ASKIR infrared modes
Keyboard/Mouse Interface
♦
Provides a single PS/2 keyboard port
♦
Provides a single PS/2 mouse port
Audio Interface
♦
Provides a single three-pin audio stack for MIC In, Line In, and Line Out
♦
Supports AC'97 standard
♦
AC'97 CODEC on board
Ethernet Interface
♦
Supports two fully independent ethernet ports
♦
Integrated LEDs on each port (Link/Activity and Speed)
♦
Provides PCIe interface using Intel 82573V controller
♦
Supports IEEE 802.11 10BaseT/100BaseTX/1000BaseT compatible physical layer
♦
Supports auto-negotiation for speed, duplex mode, and flow control
♦
Supports full duplex or half-duplex mode
•
Full-duplex mode supports transmit and receive frames simultaneously
•
Supports IEEE 802.11 flow control in full duplex mode
MightyBoard 821
Reference Manual
5
Chapter 2
Product Overview
•
♦
•
•
6
Half-duplex mode supports enhanced proprietary collision reduction mode
Supports LAN Boot (See Appendix B)
Video Interfaces (CRT/LVDS)
♦
Support CRT (2048-1536) with 64MB BIOS dependent UMA (Unified Memory Architecture)
♦
Integrated graphics controller performance
♦
LVDS outputs (1 or 2 channel, four differential signals 3-bits + clock)
Miscellaneous
♦
Provides real-time clock (RTC) with replaceable battery
♦
Supports battery-free boot
♦
Provides external battery connection for RTC operation
♦
Provides user GPIO interface header
♦
Thermal and voltage monitoring
♦
Provides connector for optional CPU fan
♦
Supports a customizable Logo Screen
♦
Supports Serial Console
♦
Provides Watchdog Timer
Reference Manual
MightyBoard 821
Chapter 2
Product Overview
Block Diagram
Figure 2-2 shows the functional components of the MightyBoard 821.
Intel
Pentium M
or Celeron M
CPU
Clock
DDR2
SODIMM
CRT VGA
Memory Hub
82915GM
(Northbridge)
LVDS LCD
Memory Bus
Temp
PCIe Bus
Connector
PCIe
x16 Bus
SMBus
PATA
IDE
PCIe
x1 Bus
Ethernet
Controller(2)
82573V
AC’97 Link
I/O Hub
82801FB
(Southbridge)
SATA
SATA
IDE Devices,
(HDDs, CD-ROM, etc. )
AC’97
CODEC
USB Port 0
USB Port 1
USB Port 2
USB 2.0
LPC Bus
USB Port 3
USB Port 5
CPU Fan
Super I/O
W83627HF
IrDA 1.1
LPC I/O
(Secondary)
F81216D
Parallel
Keyboard/
Mouse
COM3
COM1
COM2
512kB
ROM
BIOS
COM4
RS232/RS422/RS485
GPIO (User Defined)
MB821Blkdiagm_b
MagneticsRJ45
MagneticsRJ45
USB Port 4
Figure 2-2. Functional Block Diagram
Major Components (ICs)
Table 2-1 lists the major integrated circuits (chips), including a brief description of each, on the
MightyBoard 821 and Figure 2-3 shows the location of the major chips.
MightyBoard 821
Reference Manual
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Chapter 2
Product Overview
Table 2-1. Major Component Descriptions and Functions
Chip Type
CPU (U10)
Mfg.
Intel
Model
Pentium M,
Celeron M
Description
2.0GHz, 1.5GHz CPUs
Function
Embedded
CPU
Memory Hub (U7)
Intel
915GM
Memory and Video functions
Memory
and Video
I/O Hub (U3)
Intel
82801FB
Provides some of the I/O functions (HDD,
Audio, USB, LAN, PCI)
I/O
Functions
Super I/O (U5)
Nuvoton
W83627HF
Provides most of remaining I/O functions
(FDD, COM1/2, KB, MS, LPT, Fan,
IrDA)
I/O
Functions
LPC (I/O) UART
Controller (U13)
FinTech
F81216D
LPC controller for Serial Ports 3 & 4
(COM 3 & 4)
UART
(I/O)
Controller
Audio '97 CODEC
(U15)
Realtek
ALC202A
Audio '97 CODEC for audio In/Out
signals
Audio
In/Out
Ethernet
Controllers
(U8, U11)
Intel
82573V
Ethernet – These chips provide two
independent 10/100BaseT and 1000BaseT
network channels respectively
Ethernet
Functions
U15
U13
U10
U11
U8
U7
U5
U3
Figure 2-3. Component Locations
8
Reference Manual
MightyBoard 821
Chapter 2
Product Overview
Connector and Header Definitions
Table 2-2 describes the connectors and headers shown in Figure 2-4. All I/O connectors and headers use
2.54mm (0.1") pin spacing (pitch) unless otherwise indicated.
Table 2-2. Connector and Header Descriptions
Jack #
Signal
Description
BT1
Battery
2-pin, 1.25mm external battery connector
DIMM1
DDR2 Memory 1
240-pin socket for DDR2 RAM DIMM
DIMM2
DDR2 Memory 2
240-pin socket for DDR2 RAM DIMM
J1 A/B
Keyboard/Mouse
6-pin standard PS/2 connectors for keyboard (purple) and mouse
(green)
J2
ATX PWR In
20-pin, 4.2mm for ATX power in connector
J3
Serial 1 (COM1)
9-pin, 2.77mm connector for serial port 1 (COM1)
J4
Parallel
25-pin connector for printer port (LPT 1)
J5
Video (CRT)
15-pin connector for output to a CRT type monitor
J6
Serial 2 (COM2)
10-pin, 2.0mm header for serial port 2 (COM2)
JP6
Ethernet External
LED
8-pin header for Ethernet activity signals on external LEDs
J7
Infrared (IrDA)
5-pin header for Infrared (IrDA)
J8
GPIO
10-pin, 2.0mm header for general purpose I/O
J9
Video (LVDS)
30-pin, 2.0mm header for LVDS type video displays
J10
DNP
Do not populate
J11A
Ethernet 1
(LAN1)
8-pin RJ45 connector on Gigabit Ethernet port 1
J11B/C
USB 0 & 1
8-pin USB jack provides USB0 and USB1 ports
J12
CPU Fan
3-pin header for fan, +12V, tachometer, ground
J13A
Ethernet 2
(LAN2)
8-pin RJ45 connector on Gigabit Ethernet port 2
J13B/C
USB 2 & 3
8-pin USB jack provides USB2 and USB3 ports
J14
Audio In/Out
14-pin jack for 3.5 mm MIC In, Line Out, Line In connectors
J15
Serial 3 & 4
20-pin, 2.0mm header for serial ports 3 and 4 (COM3 & COM4)
J16
PCI Express
164-pin, 2.0mm slot for PCI Express
J17
Utility
16-pin connector for PWR LED, IDE activity LED, Power switch,
reset switch, PC speaker (Beep)
J18
IDE
40-pin header for the IDE interface
J19
SATA 1
7-pin Serial ATA connector
J20
SATA 0
7-pin Serial ATA connector
J21
USB 4 & 5
10-pin, 2.0mm header for USB4 and USB5 ports
J22
System Fan
3-pin header for fan, +12V, tachometer, ground
MightyBoard 821
Reference Manual
9
Chapter 2
Product Overview
J16
J15
JP6
DIMM1
DIMM2
J17
F2
J18
J5
J6
J9
J4
J8
J2
J21
J3
J20
F1
J1
JP1 BT1
J22
Figure 2-4. Connector and Header Locations
NOTE
Pin-1 is shown as a black pin (square or round) in all connectors and jumpers in
all illustrations.
Additional Components
Fuses F1 and F2, in Table 2-3, are shown in Figure 2-4. Fuses F3 and F4 can be found on the back of the
board.
Table 2-3. Additional Component Descriptions
10
Component
Description
F1 (1.6A) Auto Reset
Overcurrent Fuse for the USB 4 & 5 (J21)
F2 (1.6A) Auto Reset
Overcurrent Fuse for the USB 0 & 1 (J11)
F3 (1.1A) Auto Reset
Overcurrent Fuse for the Keyboard/Mouse (J1)
F4 (1.6A) Auto Reset
Overcurrent Fuse for the USB 2 & 3 (J13)
Reference Manual
MightyBoard 821
Chapter 2
Product Overview
Jumper Definitions
Table 2-4 describes the jumpers shown in Figure 2-4 on page 10.
Table 2-4. Jumper Settings
Jumper #
Installed
Removed/Installed
JP1 – CMOS Normal/Clear
Normal (pins 1-2) Default
Clear (pins 2-3)
JP2 – CPU Voltage Select
1.5V/533 FSB CPU (pins 1-2)
1.8V/400 FSB CPU (removed)
JP3 – Serial 3 (COM3) RS-485
Termination
Termination (pins 1-2)
No Termination (removed)
*Default
JP3 – Serial 4 (COM4) RS-485
Termination
Termination (pins 3-4)
No Termination (removed)
*Default
JP4 – LVDS Voltage Select
Enable +3.3V (pins 1-2) Default
Enable +5V (pins 2-3)
JP5 – Inverter Voltage Select
+5V (pins 1-2)
+12V (pins 2-3)
Note: *The jumper or shunt may be stored by connecting it to one of the pins for safe keeping.
Specifications
Power Specifications
Tables 2-5 and 2-6 list the power requirements for the MightyBoard 821 with 1.5 and 2.0 GHz CPUs.
Table 2-5. System Power Requirements (1.5 GHz CPU)
Parameter
+12.0VDC
In-rush Current
(Typical)
Max: 8.00A (96.00W)
Idle
1.20A (14.38W)
BIT* Current
(Typical)
1.54A (18.47W)
Min: 0.28A (3.36W)
Operating configurations:
•
In-rush operating configuration includes 512MB DDR RAM, ATX power, CRT monitor, two SATA
HDDs and one IDE HDD each with WinXP Pro, keyboard and mouse.
•
Idle operating configuration includes the same items as the in-rush configuration.
•
BIT* = Burn-In-Test. Operating configuration includes Idle configuration as well as one serial port with
loop-back, one parallel port with loop-back, two Ethernet connections, and four external USB flash
drives.
MightyBoard 821
Reference Manual
11
Chapter 2
Product Overview
Table 2-6. System Power Requirements (2.0 GHz CPU)
Parameter
+12.0VDC
In-rush Current
(Typical)
Max: 5.84A (70.08W)
Idle
0.97A (11.65W)
BIT* Current
(Typical)
1.33A (16.00W)
Min: 0.20A (2.40W)
Operating configurations:
•
In-rush operating configuration includes 512MB DDR RAM, ATX power, CRT monitor, two SATA
HDDs and one IDE HDD each with WinXP Pro, keyboard and mouse.
•
Idle operating configuration includes the same items as the in-rush configuration.
•
BIT* = Burn-In-Test. Operating configuration includes Idle configuration as well as one serial loopback, one parallel port with loop-back, two Ethernet connections, and four external USB flash drives.
Environmental Specifications
Table 2-7 provides the most efficient operating and storage condition ranges required for this board.
Table 2-7. Environmental Requirements
Humidity
Temperature
Parameter
1.5GHz Celeron M Conditions
2.0GHz Pentium M Conditions
Operating
0° to +60°C
(+32° to +140°F)
0° to +60°C
(+32° to +140°F)
Storage
–20° to +75°C
(–4° to +167°F)
–20° to +75°C
(–4° to +167°F)
Operating
5% to 90%
relative humidity,
non-condensing
5% to 90%
relative humidity,
non-condensing
Non-operating
5% to 95%
relative humidity,
non-condensing
5% to 95%
relative humidity,
non-condensing
Thermal/Cooling Requirements
The CPU, Memory Hub (Northbridge), I/O Hub (Southbridge), and voltage regulators are the sources of
heat on the board. The MightyBoard 821 is designed to operate at its maximum CPU speed of 2.0GHz or
1.5GHz. Both CPU versions (Celeron M or Pentium M) and the Memory Hub (Northbridge) require a
heatsink with a fan.
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MightyBoard 821
Chapter 2
Product Overview
Physical Specifications
Table 2-8 shows the physical dimensions of the board, and Figure 2-5 shows the mounting dimensions and
connector locations.
Table 2-8. Weight and Footprint Dimensions
Item
Weight
Dimension
0.385kg. (0.85lbs.)
Height (overall)
38.50mm (1.51")
Width
170mm (6.69")
Length
170mm (6.69")
Thickness
1.57mm (0.062")
NOTE
Overall height is measured from the
upper board surface to the highest
permanent component (Audio 3-in-1
stack) on the upper board surface. This
measurement does not include the
various heatsinks or DIMM sizes
available for this board. The DIMM or
heatsinks could increase this dimension.
Mechanical Specifications
Figure 2-5 shows the side view of the MightyBoard 821 with the mechanical mounting dimensions. Refer
also to the MightyBoard Design Library on the MightyBoard 821 Support Software DVD for more detailed
dimensions.
Back Panel I/Os
Line In (Blue)
Mouse (Green)
Line Out (Green)
Keyboard (Purple)
MIC In (Pink)
MB821SideVw_b
Back Panel Bezel
Figure 2-5. Back Panel Overview
MightyBoard 821
Reference Manual
13
Chapter 2
14
Product Overview
Reference Manual
MightyBoard 821
Chapter 3
Hardware
Overview
This chapter discusses the chips and features of the connectors in the following order:
•
Interrupt Channel Assignments
•
Memory Map
•
I/O Address Map
•
Serial Interfaces
•
USB Interfaces
•
♦
USB 2.0 Support
♦
Legacy USB Support
Video Interfaces
♦
LVDS Interface (J2)
•
Infrared (IrDA)
•
Utility Interface
•
♦
External Power-On Switch
♦
External Reset Switch
♦
External Speaker (Beep)
♦
External Power-On LED
♦
External IDE Activity LED
Miscellaneous
♦
Real Time Clock (RTC)
♦
External Battery (BT1)
♦
Temperature Monitoring
♦
User GPIO Signals
♦
Ethernet External LED
♦
Serial Console
•
♦
•
Serial Console Setup
Watchdog timer
Power and Sleep States
♦
Power-On Switch
♦
Sleep States (ACPI)
NOTE
MightyBoard 821
Ampro Computers, Inc. supports only the features/options tested and listed in
this manual. The main integrated circuits (chips) used in the MightyBoard 821
may provide more features or options than are listed for the MightyBoard 821,
but some of these chip features/options are not supported on the board and may
not function as specified in the chip documentation.
Reference Manual
15
Chapter 3
Hardware
Interrupt Channel Assignments
The interrupt channel assignments are shown in Table 3-1.
Table 3-1. Interrupt Channel Assignments
Device vs IRQ No.
0
Timer
D
3
4
COM1
O
D
COM2
D
O
Keyboard
1
2
5
6
7
8
9
10
11
12
13
14
15
D
O
D
Secondary Cascade
D
COM3
O
D
COM4
D
O
Parallel
O
D
RTC
D
IDE
Math Coprocessor
D
PS/2 Mouse
D
PCI INTA
Automatically Assigned
PCI INTB
Automatically Assigned
PCI INTC
Automatically Assigned
PCI INTD
Automatically Assigned
PCI INTE
Automatically Assigned
PCI INTF
Automatically Assigned
PCI INTH
Automatically Assigned
Sound Blaster
D
USB
Automatically Assigned
VGA
Automatically Assigned
Ethernet
Automatically Assigned
O
O
O
Legend: D = Default, O = Optional
NOTE
The IRQs for the Ethernet, Video, and Internal LPC bus are automatically
assigned by the BIOS Plug and Play logic. Local IRQs assigned during
initialization can not be used by external devices.
Memory Map
The following table provides the common PC/AT memory allocations. These are DOS-level addresses. The
OS typically hides these physical addresses by way of memory management. Memory below 000500h is
used by the BIOS.
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Chapter 3
Hardware
Table 3-2. Memory Map
Base Address
Function
00000000h
-
0009FFFFh
Conventional Memory
000A0000h
-
000AFFFFh
Graphics Memory
000B0000h
-
000B7FFFh
Mono Text Memory
000B8000h
-
000BFFFFh
Color Text Memory
000C0000h
-
000CFFFFh
Standard Video BIOS
000E0000h
-
000FFFFFh
System BIOS Area (Storage and RAM Shadowing)
00100000h
-
04000000h
Extended Memory (If onboard VGA is enabled, then the amount
of memory assigned is subtracted from extended memory.)
FFF80000h
-
FFFFFFFFh
System Flash
I/O Address Map
Table 3-3 shows the I/O address map. These are DOS-level addresses. The OS typically hides these physical
addresses by way of memory management.
Table 3-3. I/O Address Map
Address (hex)
Subsystem
000-00F
Primary DMA Controller
020-021
Master Interrupt Controller
040-043
Programmable Interrupt Timer (Clock/Timer)
060-06F
Keyboard Controller
070-07F
CMOS RAM, NMI Mask Reg, RT Clock
080-09F
DMA Page Registers
092
Fast A20 gate and CPU reset
094
Motherboard enable
102
Video subsystem register
0A0-0BF
Slave Interrupt Controller
0C0-0DF
Slave DMA Controller #2
0F0-0FF
Math Coprocessor
1F0-1F8
IDE Hard Disk Controller
278-27F
Parallel Port
2E8-2FF
Serial Port 4 (COM4)
2F8-2FF
Serial Port 2 (COM2)
378-37F
Parallel Port (Standard and EPP)
3C0-3DF
VGA
3E8-3EF
Serial Port 3 (COM3)
3F8-3FF
Serial Port 1 (COM1)
778-77A
Parallel Port (ECP Extensions) (Port 378+400)
CF8-CFF
PCIe bus Configuration Address and Data
MightyBoard 821
Reference Manual
17
Chapter 3
Hardware
Serial Interfaces
The Super I/O (W83627HF) chip and the LPC UART controller (F81216D) provide the circuitry for the four
serial ports. The Super I/O chip provides serial ports 1 and 2 through connector J3 and header J6
respectively. The LPC UART controller provides serial ports 3 and 4 through header J15. The four serial
ports support the following features:
•
Four individual 16550-compatible UARTs
•
Programmable word length, stop bits and parity
•
16-bit programmable baud rate generator
•
Interrupt generator
•
Loop-back mode
•
Four individual 16-bit FIFOs
•
Serial Ports 1 and 2
•
♦
Serial Port 1 (COM1) supports RS232 and full modem support
♦
Serial Port 2 (COM2) supports RS232, full modem support, and IrDA
Serial B Interface
♦
Serial Port 3 (COM3) supports RS232/RS485/RS422 and full modem support
♦
Serial Port 4 (COM4) supports RS232/RS485/RS422
NOTE
The RS232/RS485/RS422 modes are selected in BIOS Setup under BIOS and
Hardware Settings menu for Serial ports 3 (COM3) and 4 (COM4). However,
the RS232 mode is the default (Standard) for any serial port.
RS485 mode termination is selected with jumper JP3, pins 1-2 (COM3), and pins
3-4 (COM4), when the RS485 mode is selected in BIOS Setup.
To implement the two-wire RS485 mode on serial ports 3 or 4, you must tie the equivalent pins together for
the selected port.
19
Serial B Interface (J15)
for Serial Port 3
(or COM3 Port)
Top View
9 7531
1 2 3 4 5
Standard DB9 Serial
Or Port Connector (Female)
20
10 8 6 4 2
Rear View
MB821_RS485
For example, on Serial Port 3, tie pins 3 to 5 and pins 4 to 6 at the Serial B interface connector as shown in
Figure 3-1. As an alternate, tie pins 2 to 3 and pins 7 to 8 at the DB9 serial connector for serial port 3 as
shown in Figure 3-1. Refer to the following tables for the specific pins for serial ports 3 and 4 on the serial B
connector. The RS422 mode uses a four-wire interface and does not need any pins tied together, but you
must select RS485 mode in BIOS Setup.
6 7 8 9
Figure 3-1. RS485 Serial Port Implementation
Table 3-4 lists the pin-outs for the Serial Port 2 (COM 2) interface header (J6) . Table 3-4 lists the pin-outs
for Serial Ports 3 and 4 (COM 3 and COM 4) interface header (J15).
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Chapter 3
Hardware
Table 3-4. Serial 2 (COM2) Interface Pin/Signal Descriptions (J6)
Pin #
Pin #
DB9
Signal
Description
1
1
DCD2*
Data Carrier Detect 2 – Indicates external serial communications device is
detecting a carrier signal (i.e., a communication channel is currently open).
In direct connect environments, this input will be driven by DTR2 as part
of the DTR2/DSR2 handshake.
2
6
DSR2*
Data Set Ready 2 – Indicates external serial communications device is
powered, initialized, and ready. Used as hardware handshake with DTR2
for overall readiness to communicate.
3
2
RXD2
Receive Data 2 – Serial port 2 receive data in
4
7
RTS2*
Request to Send 2 – Indicates Serial port 2 is ready to transmit data. Used
as hardware handshake with CTS2 for low level flow control.
5
3
TXD2
Transmit Data 2 – Serial port 2 transmit data out
6
8
CTS2*
Clear to Send 2 – Indicates external serial communications device is ready
to receive data. Used as hardware handshake with RTS2 for low level flow
control.
7
4
DTR2*
Data Terminal Ready 2 – Indicates Serial port 2 is powered, initialized, and
ready. Used as hardware handshake with DSR2 for overall readiness to
communicate.
8
9
RI2*
Ring Indicator 2 – Indicates external serial communications device is
detecting a ring condition. Used by software to initiate operations to
answer and open the communications channel.
9
5
GND
Ground
10
NC
NC
Not connected
Note: The shaded area denotes power or ground.
Table 3-5. Serial 3 and 4 (COM3 and COM4) Interface Pin/Signal Descriptions (J15)
Pin #
Pin #
DB9
Signal
Description
1
1(COM3)
DCD3*
Data Carrier Detect 3 – Indicates external serial communications
device is detecting a carrier signal (i.e., a communication channel is
currently open). In direct connect environments, this input will be
driven by DTR3 as part of the DTR3/DSR3 handshake.
2
6
DSR3*
Data Set Ready 3 – Indicates external serial communications device is
powered, initialized, and ready. Used as hardware handshake with
DTR3 for overall readiness to communicate.
3
2
RXD3
Receive Data 3 – Serial port 3 receive data in
RX3-
RX3- – If in RS485 or RS422 mode, this pin is Receive Data 3 -.
RTS3*
Request To Send 3 – Indicates Serial port 3 is ready to transmit data.
Used as hardware handshake with CTS3 for low level flow control.
TX3+
TX3+ – If in RS485 or RS422 mode, this pin is Transmit Data 3 +.
TXD3
Transmit Data 3 – Serial port 3 transmit data out
TX3-
TX3- – If in RS485 or RS422 mode, this pin is Transmit Data 3 -.
4
5
MightyBoard 821
7
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Chapter 3
Hardware
Table 3-5. Serial 3 and 4 (COM3 and COM4) Interface Pin/Signal Descriptions (J15)
6
8
CTS3*
Clear To Send 3 – Indicates external serial communications device is
ready to receive data. Used as hardware handshake with RTS3 for
low level flow control.
RX3+
RX3+ – If in RS485 or RS422 mode, this pin is Receive Data 3 -.
7
4
DTR3*
Data Terminal Ready 3 – Indicates Serial port 3 is powered,
initialized, and ready. Used as hardware handshake with DSR3 for
overall readiness to communicate.
8
9
RI3*
Ring Indicator 3 – Indicates external serial communications device is
detecting a ring condition. Used by software to initiate operations to
answer and open the communications channel.
9
5
GND
Ground
10
NC
NC
Not connected
11
1
DCD4*
Data Carrier Detect 4 – Indicates external serial communications
device is detecting a carrier signal (i.e., a communication channel is
currently open). In direct connect environments, this input will be
driven by DTR4 as part of the DTR4/DSR4 handshake.
(COM4)
12
6
DSR4*
Data Set Ready 4 – Indicates external serial communications device is
powered, initialized, and ready. Used as hardware handshake with
DTR4 for overall readiness to communicate.
13
2
RXD4
Receive Data 4 – Serial port 4 receive data in
RX4-
RX4- – If in RS485 or RS422 mode, this pin is Receive Data 4 -.
RTS4*
Request To Send 4 – Indicates Serial port 4 is ready to transmit data.
Used as hardware handshake with CTS4 for low level flow control.
TX4+
TX4+ – If in RS485 or RS422 mode, this pin is Transmit Data 4 +.
TXD4
Transmit Data 4 – Serial port 4 transmit data out
TX4-
TX4- – If in RS485 or RS422 mode, this pin is Transmit Data 4 -.
CTS4*
Clear To Send 4 – Indicates external serial communications device is
ready to receive data. Used as hardware handshake with RTS4 for
low level flow control.
RX4+
RX4+ – If in RS485 or RS422 mode, this pin is Receive Data 4 +.
14
15
16
7
3
8
17
4
DTR4*
Data Terminal Ready 4 – Indicates Serial port 3 is powered,
initialized, and ready. Used as hardware handshake with DSR4 for
overall readiness to communicate.
18
9
NC
Not connected
19
5
GND
Ground
20
NC
NC
Not connected
Note: The shaded area denotes power or ground. Signals are listed in the following order: RS232
followed by RS485/RS422
Keyboard/Mouse Interfaces
Keyboard Interface
The Super I/O chip (W83627HF) provides the signal lines for the PS/2 keyboard through the keyboard
connector (J1A), which is fully PC/AT compatible.
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Chapter 3
Hardware
Mouse Interface
The Super I/O chip (W83627HF) provides the signal lines for a PS/2 mouse through the mouse connector
(J1B).
USB Interfaces
The I/O Hub (82801DBM) provides the USB solution for both legacy UHCI controllers and EHCI controller
(USB 2.0) support. The I/O Hub (Southbridge) contains port-routing logic that determines which controller
(UHCI or EHCI) handles the USB data signals. The PC-style (or Standard) connector (J11 B and C)
provides two of the four USB ports, USB0 and USB1. The other PC-style (or Standard) connector (J13 B
and C) provides the other two USB ports, USB2 and USB3. The Super I/O provides USB 4 and 5 on the J21
header.
USB 2.0 Support
The I/O Hub (Southbridge) contains an Enhanced Host Controller Interface (EHCI) compliant host
controller, which supports up to four high-speed USB 2.0 Specification compliant root ports. The higher
speed USB 2.0 specification allows data transfers up to 480 Mbps using the same pins as the four full-speed/
low-speed USB UHCI ports. The I/O Hub (Southbridge) port-routing logic determines which of the
controllers (UHCI or the EHCI) processes the USB signals. The Super I/O provides USB 4 and 5 on the J21
header.
•
One EHCI host controller for all four USB ports on connectors
•
Supports USB v2.0 Specification
•
Over-current fuses, located on the board, where USB0 and USB1 share a single fuse (F2), USB2 and
USB3 share a single fuse (F4), and USB4 and USB5 share a single fuse (F1). See Table 2-3 on page 10.
Legacy USB Support
The I/O Hub (Southbridge) supports two USB Universal Host Controller Interfaces (UHCI) and each Host
Controller includes a root hub with two separate USB ports each, for a total of four USB ports. The USB
Legacy features implemented in the USB ports include the following:
•
One root hub and two USB ports on connector
•
One root hub and two USB ports on connector
•
Supports USB v1.1 and UHCI v1.1 with integrated physical layer transceivers
•
Supports improved arbitration latency for UHCI controllers
•
UHCI controllers support Analog Front End (AFE) embedded cell instead of USB I/O buffers to allow
for USB high-speed signaling rates
•
Three shared over-current fuses, located on the board, are used on all six USB ports
USB4 and USB5
Table 3-6 describes USB 4 & 5 J21 with 10-pins, two rows, Odd/even (1, 2) and 2mm pin spacing.
Table 3-6. USB Ports 4 & 5 Interface Pin/Signal Descriptions (J21)
Pin #
Signal
Description
1, 2
+5V
+5V through a fuse (F3). Also over current monitor line.
3
USBP3-
Universal Serial Bus 2 Negative
5
USBP3+
Universal Serial Bus 2 Positive
4
USBP4-
Universal Serial Bus 3 Negative
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Chapter 3
Hardware
Table 3-6. USB Ports 4 & 5 Interface Pin/Signal Descriptions (J21) (Continued)
6
USBP4+
Universal Serial Bus 3 Positive
7, 8, 9, 10
GND
Ground
Note: The shaded area denotes power or ground.
Audio Interface
The audio solution on the MightyBoard 821 is provided by the I/O Hub, 82801DBM (Southbridge) and the
on-board Audio CODEC (ALC202A). These two chips use a digital interface to communicate between the
two, which is defined by AC’97 and is revision 2.3 compliant. The input or output signals for the audio
interface go through the 14-pin jack (J14), which has the respective audio connections.
Audio CODEC (ALC202A) features
•
AC’97 Rev 2.3 compliant
•
18-bit full duplex performance
•
Variable sampling rate at 1Hz resolution
•
Stereo (Left and Right) Line In
•
Stereo (Left and Right) Line Out
•
Microphone (mono) in
•
PC Beep speaker signal also fed to CODEC for the Line Out (Left and Right) channels
Video Interfaces
The Memory Hub, 82915GM (Northbridge) provides the graphics control and video signals to the
traditional CRT monitors and the LVDS flat panel displays. The Memory Hub (Northbridge) features are
listed below:
Supports 2D/3D graphics with extensive set of instructions including:
•
3D rendering and display
•
BLT operations
•
MPEG2 decode acceleration
•
3D overlay
CRT features:
•
Supports an integrated 400-MHz, 24-bit RAMDAC to drive a progressive scan analog monitor and
outputs to three 8-bit DACs provide the R, G, and B signals to the monitor
•
Supports resolutions up to 1600 x 1200 at 85-Hz refresh, or up to 2048x1536 at 75-Hz refresh
•
Supports a maximum allowable video frame buffer size of 64MB UMA (Unified Memory Architecture)
LVDS Flat Panel features:
22
•
Supports an integrated dual channel LFP Transmitter interface
•
Supports LVDS LCD panel resolutions up to UXGA
•
Supports a maximum pixel format of 18 bpp (with SSC supported frequency range from 25 MHz to 112
MHz (single channel/dual channel)
•
Supports 1 or 2 channel LVDS outputs
•
The 82915GM chip only supports the LVDS port on Pipe B of two pipelines
•
Supports the LVDS port independently or simultaneously with the Analog Display (CRT) port
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MightyBoard 821
Chapter 3
Hardware
•
Supports Spread Spectrum Clocking; center and down spread support utilizing an external SSC clock
•
Supports panel up-scaling (to fit a smaller source image onto a specific native panel size) as well as
panning and centering CRT Interface
LVDS Interface
Table 3-7. LVDS Interface Pin/Signal Descriptions (J2)
Pin #
Signal
Description
1
+12V
JP5 = +5 or +12V
source
2
VCC_LCD
JP4 = +3.3 or +5V
source
3
GND
Ground
4
GND
Ground
5
LVDSB_Clk+
Clock Positive Output
6
LVDSB_Clk-
Clock Negative
Output
7
NC
Not Connected
8
NC
Not Connected
9
LVDSB_Y2+
Data Positive Output
10
LVDSB_Y2-
Data Negative Output
11
LVDSB_Y1+
Data Positive Output
12
LVDSB_Y1-
Data Negative Output
13
LVDSB_Y0+
Data Positive Output
14
LVDSB_Y0-
Data Negative Output
15
LVD_BKLTCtl
Backlight Control
16
LCD_EN
LCD Enable
17
LVDSB_Clk+
Data Positive Output
18
LVDSB_Clk-
Data Negative Output
19
NC
Not Connected
20
NC
Not Connected
21
LVDSB_Y2+
Data Positive Output
22
LVDSB_Y2-
Data Negative Output
23
LVDSB_Y1+
Data Positive Output
24
LVDSB_Y1-
Data Negative Output
25
LVDSB_Y0+
Data Positive Output
26
LVDSB_Y0-
Data Negative Output
27
LVDS_DDCPClk
Clock
28
LVDS_DDCPData
Data
29
LVD_BKLEN
Backlight Enable
30
NC
Not connected
Line
Channel
NOTE
Gnd
Clk
3
Pins 5-14
constitute 1st
channel
interface of
two channels,
or a single
channel
interface. Pins
17-26
constitute 2nd
channel
interface of
two channels.
2
Channel 1
1
0
Clk
3
2
1
Channel 2
0
Note: The shaded area denotes power or ground.
MightyBoard 821
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Chapter 3
Hardware
Utility Interface
External Power-On Switch
This control signal is provided externally through a switch by connecting ground pin 8 to pin 6 on the Utility
connector (J17).
External Reset Switch
This control signal is provided through an external switch by connecting ground pin 12 to pin 10 on the
Utility connector.
NOTE
To perform the equivalent of a power-on reset, the reset button must be pressed
and held for a minimum of three seconds.
External Speaker (Beep)
The Beep signals from the I/O Hub (82801FB) and the Super I/O (W83627HF) are fed to pin 13 of the
Utility connector through an OR circuit, in conjunction with +5V (pin 7), and drives an external PC Beep
speaker. The PC Beep speaker signal from the I/O Hub (Southbridge) is also fed to the on-board Audio
CODEC (ALC202A) to provide a PC Beep signal for the Line out connections.
External Power-On LED
This indicator signal is fed to pin 1 and pin 5 of the Utility connector for an external LED to indicate power
is applied to the MightyBoard 821.
External IDE Activity LED
This indicator signal is fed to pin 2 and pin 4 of the Utility connector for an external LED to indicate power
is applied to the MightyBoard 821.
Table 3-8. Utility Interface Pin/Signal Descriptions (J17)
Pin #
Signal
Description
1
PwrLED
Power-On LED – External Power-On LED is connected between +5 Volts
through 330 ohm resistor at pin 1, to ground at pin 5.
2, 3
VCC
+ 5 Voltage – Goes to +5 volts through 330-ohm resistor.
4
IDELED
IDE Activity LED – External IDE Activity LED connection from Primary IDE
channel through Or circuit. Connect external Power-On LED between pin 2 (+5 V)
and pin 4 (IDE_LED).
5, 8, 12
GND
Ground
6
PWRSW
Power-On Switch – Connects external Power-On switch between pin 6 and ground
at pin 8.
7
VCC
+5 volts – Provides +5 volts to external device (PC “Beep” speaker).
9, 11,
14, 15,
16
NC
Not connected
10
RST
Reset Switch – External Reset switch connection sends reset signal to Super I/O
chip. Connect external Reset Switch between pin 10 and ground, pin 12.
13
SPK
PC Speaker (Beep) – Provides PC beep speaker output to external speaker. Connect
external PC Beep Speaker between pin 7 (+5V) and pin 13.
Note: The shaded area denotes power or ground.
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Chapter 3
Hardware
Miscellaneous
Real Time Clock (RTC)
The MightyBoard 821 contains a Real Time Clock (RTC). The CMOS RAM is backed up with a Lithium
Battery. If the battery is not present, the BIOS has a battery-free boot option to complete the boot process.
External Battery (BT1)
An external battery input connection is provided through the battery connector (BT1) for an external battery.
The external battery is used to power the Real Time Clock. Ampro provides a small Lithium Battery, taped
to the Super I/O (U5) with adhesive tape, and connected to the external battery connection (BT1). This small
external Lithium battery serves as an on-board battery.
Temperature Monitoring
The Super I/O chip (W83627HF) performs the temperature monitoring function. The inputs to the Super
I/O chip come from the thermal diode in the Intel Celeron M or Pentium M CPU and a single thermistor
(RT2) on the underside of the MightyBoard near pin 4 of the Infrared (IrDA) connector (J7).
NOTE
The MightyBoard 821 requires a heatsink with a fan for both CPU versions (Intel
Celeron M or Pentium M) and the Memory Hub (Northbridge).
User GPIO Signals (J8)
The MightyBoard 821 provides ten GPIO pins, including power and ground, for custom use, and the signals
are routed to the J8 connector. Enable and initialize values are set in the BIOS. An example of how to use the
GPIO pins resides in the Miscellaneous Source Code Examples on the MightyBoard 821 Support Software
DVD.
The example program can be built by using the make.bat file. This produces a 16-bit DOS executable
application, gpio.exe, which can be run on the MightyBoard 821 to demonstrate the use of GPIO pins. For
more information about the GPIO pin operation, refer to the Programming Manual for the Super I/O
(W83627HF) controller at:
http://www.nuvoton-usa.com/products/winbond_products/pdfs/PCIC/W83627HF_HGb.pdf
Table 3-9. User GPIO Signals Pin/Signal Descriptions (J10)
Pin #
Signal
Description
1
GND
Ground
2
VCC
+5 Volts DC
3
GP14
User defined
4
GP15
User defined
5
GP16
User defined
6
GP17
User defined
7
GP10
User defined
8
GP11
User defined
9
GP12
User defined
10
GP13
User defined
Note: The shaded area denotes power or ground.
MightyBoard 821
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Chapter 3
Hardware
Ethernet External LED
This header is for an external LED for Ethernet power and activity.
Table 3-10. Ethernet External LED Pin/Signal Descriptions (JP6)
Pin #
Signal
Description
1
ACT#1
Ethernet Activity 1
2
ACT#2
Ethernet Activity 2
3
LINK#1
Ethernet Link 1
4
LINK#2
Ethernet Link 2
5
VCC3
+3 volts – Provides +3 volts to external LED
6
LEDP2
LED positive 2
7
SPEED1
LED speed 1
8
SPEED2
LED speed 2
Note: The shaded area denotes power or ground.
Serial Console
The MightyBoard 821 supports the serial console (or console redirection) feature. This I/O function is
provided by an ANSI-compatible serial terminal, or the equivalent terminal emulation software running on
another system. This can be very useful when setting up the BIOS on a production line for systems that are
not connected to a keyboard and display.
Infrared (IrDA) Port
The Infrared Data Association (IrDA) port provides a two-way wireless communications port using infrared
as a transmission medium at the basic level. There are two basic infrared implementations provided; the
Hewlett-Packard Serial Infrared (HPSIR) and the Amplitude Shift Keyed Infrared (ASKIR) methods.
HPSIR is a serial implementation of infrared developed by Hewlett-Packard. The control of the IrDA port
(HPSIR and ASKIR) is Operating System specific and not configured in the BIOS Setup Utility. Typically,
the IrDA port shares the same control signals and IRQ settings with Serial Port 2.
The HPSIR method allows serial communication at baud rates up to 115k baud. Each word is sent serially
beginning with a zero value start bit. A zero is sent when a single infrared pulse is sent at the beginning of
the serial bit time. A one is sent when no infrared pulse is sent during the bit time.
The Amplitude Shift Keyed infrared (ASKIR) allows serial communication at baud rates up to 19.2k baud.
Each word is sent serially beginning with a zero value start bit. A zero is sent when a 500kHz waveform is
sent for the duration of the serial bit time. A one is sent when no transmission is sent during the serial bit
time.
Both of these methods require an understanding of the timing diagrams provided in the Super I/O controller
(W83627HF) specifications available from the manufacture’s web site and referred to earlier in this manual.
For more information, refer to the W83627HF chip databook and the Infrared Data Association web site at
http://www.irda.org.
NOTE
Table 3-11.
Infrared (IrDA) Interface Pin/Signal Descriptions (J7)
Pin #
1
2
3
26
For faster speeds and infrared applications not covered in this brief description, refer
to the W83627HF chip specifications by Nuvoton.
Signal
VCC
IRTX
CIRRX
Description
+5 volts
IR Transmit Data
IR Mode Select
Reference Manual
MightyBoard 821
Chapter 3
Table 3-11.
Hardware
Infrared (IrDA) Interface Pin/Signal Descriptions (J7) (Continued)
4
5
IRRX
GND
IR Receive Data
Ground
Note: The shaded area denotes power or ground.
Watchdog Timer
The watchdog timer (WDT) restarts the system if a mishap occurs. Possible problems include failure to boot
properly, the application software’s loss of control, unexpected conditions on the bus, or other hardware or
software malfunctions.
The WDT (watchdog timer) can be used both during the boot process and during normal system operation.
•
During the Boot process – If the operating system fails to boot in the time interval set in the BIOS, the
system will reset.
Enable the WDT in the Advanced BIOS Features of BIOS Setup. Set the WDT for a time-out interval in
seconds, between 2 and 255, in one second increments. Ensure you allow enough time for the operating
system (OS) to boot. The OS or application must tickle the WDT before the timer expires.
•
During System Operation – An application can set up the WDT hardware through a BIOS call, or by
accessing the hardware directly. Some Ampro Board Support Packages provide an API interface to the
WDT. The application must tickle the WDT before the timer expires or the system will be reset. The
BIOS implements interrupt 15 function 0C3h to manipulate the WDT.
•
Watchdog Code examples – Ampro has provided source code examples on the MightyBoard 821
Support Software DVD illustrating how to control the WDT. (Refer to the WDT Readme file in the
Miscellaneous Source Code Examples subdirectory, under the MightyBoard 821 Software menu on the
MightyBoard 821 Support Software DVD.)
Power Interfaces
ATX Power Supply Interface
The power supply interface, J2, uses a 20-pin interface that connects directly to a standard ATX power
supply. The MightyBoard 821 requires +12 volts for operation and all the onboard voltages, including the
CPU core voltages, are derived from the externally supplied +12 volts DC +/- 5%. The ATX power supply
interface provides -5V, -12V, +5V, +3.3V and +12V to the MightyBoard 821, but not all interface pins are
connected at the MightyBoard 821. Refer to the Table 3-12 for more information.
Table 3-12 shows the pin signals for power interface (J2), which has 20-pins, two rows, consecutive (1, 11)
with 0.165" (4.2mm) pin spacing.
Table 3-12. ATX Power Supply Interface Pin/Signal Descriptions (J2)
Pin #
Signal
Description
1, 2, 11
+3.3
+3.3 volts – This voltage used for PCI bus.
3, 5, 7
GND
Ground
4, 6,
19, 20
+5V
+5 volts +/- 5% – This is the main input voltage to the MightyBoard and it
generates the other voltages used on the MightyBoard 821.
8
NC
Not connected (Power Ok or Good)
9
5VSB
+5V, 100mA Standby voltage – Input to MightyBoard from ATX type power
supply to power specific components on the board during standby.
10
+12V
+12 volts +/- 5% – This provides voltage to the CPU Fan, LCD backlite supply
and PCI bus.
12
-12V
-12 volts – This voltage goes to PCI bus only
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Chapter 3
Hardware
Table 3-12. ATX Power Supply Interface Pin/Signal Descriptions (J2) (Continued)
13, 15
GND
Ground line
14
PS-On
Power Supply On – This signal turns on and off the ATX power supply.
16, 17
GND
Ground line
18
NC
Not connected (-5.0 volts)
Note: The shaded area denotes power or ground.
Optional CPU Fan
The MightyBoard 821 has an optional CPU fan connector for those environmental situations where
customers may require it.
Table 3-13. Optional CPU Fan Interface Pin/Signal Descriptions (J12)
Pin #
Signal
Description
1
DET
Fan Speed Detect – This is the fan speed tachometer signal.
2
+12
+12 volts DC +/- 5%
3
GND
Ground
Note: The shaded area denotes power or ground.
Optional System Fan
The MightyBoard 821 has an optional system fan connector for those environmental situations where
customers may require it.
Table 3-14. Optional System Fan Interface Pin/Signal Descriptions (J22)
Pin #
Signal
Description
1
DET
Fan Speed Detect – This is the fan speed tachometer signal.
2
+12
+12 volts DC +/- 5%
3
GND
Ground
Note: The shaded area denotes power or ground.
Power and Sleep States
The following information only applies to the MightyBoard 821, if an ATX power supply is used to provide
power. If a non-ATX power supply is used, then the MightyBoard 821 is only controlled by the
Power-On/Off switch on the power supply and the various sleep states are not available.
Power-On Switch
The Power-On switch turns the MightyBoard 821 and its attached power supply to a fully On condition, if
you are using an ATX power supply. Normally, if the operating system (OS) supports sleep states, the OS
will turn off the MightyBoard 821 and its power supply during the OS shut down process. If the OS supports
sleep states, the Power-On button will also transition the MightyBoard 821 and its power supply between a
fully Powered On state, various sleep states depending on the OS control setting, and a fully Powered Off
state. If the OS does not support sleep states, then the Power-On button only turns power on or off to the
MightyBoard 821.
The sleep states are OS dependent and not available if your OS does not support power management based
on the ACPI standard. An OS supporting ACPI will allow the Power-On button to be configured through a
user interface.
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MightyBoard 821
Chapter 3
Hardware
The Power-On Switch is provided externally by connecting a momentary switch between pins 1 and 2 on the
Utility connector (J17). The Power-On signal occurs when ground is placed on pin 6 of J17.
Sleep States (ACPI)
The MightyBoard 821 supports the ACPI (Advanced Configuration and Power Interface) standard, which is
a key component of certain Operating Systems’ power management. The supported features (sleep states)
listed here are only available when an ACPI-compliant OS is used for the MightyBoard, such as Windows
2000/XP. The term “sleep” state refers to a reduced power consumption state, which can be re-started
(awakened), restoring full operation to the MightyBoard 821.
In these various sleep states, the MightyBoard 821 appears to be off, indicated by such things as no display
on the attached monitor and no activity for the connected CD-ROM or hard drives. However, when the
MightyBoard 821 detects certain types of activity (i.e. power button, mouse, keyboard, or LAN activity), it
returns to a fully operational state. The type of activity detected is based on those supported by the
MightyBoard 821.
The MightyBoard 821 supports at least four ACPI power states, depending on the operating system used and
its ability to manage sleep states. Typically, the Power-On switch is used to wake up from a sleep state, or
transition from one state to another, but this is dependent on the operating system.
•
•
1st state is normal Power-On (S0).
♦
To go to a fully powered on state, the MightyBoard 821 must either be powered Off (S5), or in a
sleep state (S1 or S4), and then the Power On/Off switch is pressed for less than 4 seconds
(default).
♦
The MightyBoard 821 can transition from this state (S0) to the various states described below,
depending on the power management capability of the OS and how it is programmed.
2nd state is a standby state (S1).
In this state, no internal operations take place except for the internal RTC (real time clock) and the
contents of RAM. This typically includes no activity for the CPU, CD-ROM, or hard disk drives. The
CPU may be active, and the peripheral devices may power down if no signals occur or power to the
device(s) is not provided. The MightyBoard 821 appears to be off including the Power-On LED.
•
♦
Normally, to enter this sleep state, the MightyBoard 821 must be fully powered on (S0) while the
OS transitions the MightyBoard into this standby state (S1) under user control.
♦
To exit this sleep state, typically the power button is used to wake up the MightyBoard 821 to
restore full operation, including the Power-On LED. Typically, pressing the power switch for less
than 4 seconds (default) will restore full operation.
3rd state is Suspend to RAM or Standby [Windows] (S3).
In this state, main memory (RAM) and the internal RTC (real time clock) are the only devices where
power is maintained. This state (Suspend to RAM) stores the state of the operating prior to shutdown
including all open applications and open documents, etc. in main memory. This allows users to resume
their work exactly where they left off just prior to entering this state (S3) when the system restores
power and the contents of main memory.
This state takes longer to restore and uses less power than S1 or S2, but if AC power is completely lost,
the contents of main memory (RAM), including any changes to documents or data stored in RAM
during S3, is also lost.
•
♦
To enter the Suspend to RAM (S3) or Standby state, the computer must be fully powered on and the
OS transitions the computer into this sleep state under user control.
♦
To exit this sleep state, typically pressing the Power On switch for less then 4 seconds (default) will
restore full operation.
4th state is a hibernate or suspend-to-disk state (S4).
In this state, no internal operations take place, except for the internal RTC. This includes no activity for
the CPU, CD-ROM, or hard disk drives. The MightyBoard 821 appears to be off, including the external
MightyBoard 821
Reference Manual
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Chapter 3
Hardware
Power-On LED if connected. Your system will take longer to wake-up in this sleep state, however, since
your data is saved to the disk, it is more secure and should not be lost in the event of a power failure.
•
♦
To enter a hibernate or suspend-to-disk state, the MightyBoard 821 must be fully powered on while
the OS transitions the MightyBoard 821 into this sleep state (S4) under user control.
♦
To exit this sleep state, typically pressing the power switch for less than 4 seconds (default) will
restore full operation.
5th state is the normal power off or shutdown (S5).
All activity stops, except the internal clock, if there is a backup battery installed. Removing the power
cord from the power source ensures all activity is stopped, except the internal clock.
♦
To go to a fully powered down state, the MightyBoard 821 must either be powered on, or in a sleep
state, and then the Power On/Off switch is pressed for more than 4 to 6 seconds.
♦
To go to a fully powered up state, press the power switch for less than 4 seconds (default) and full
operation is restored.
The OS may provide additional programming features to change the activation time for each state, and to
shutdown or transition the MightyBoard 821 at certain times, depending on the way the OS interface is
programmed. Refer to the OS vender’s documentation for power management under the ACPI standard.
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MightyBoard 821
Chapter 4
BIOS Setup
Introduction
This section assumes the user is familiar with general BIOS Setup. Refer to the appropriate PC reference
manuals for information about the onboard ROM-BIOS software interface. If Ampro has added to or
modified the standard functions, these functions will be described.
Entering BIOS Setup (VGA Display)
To access BIOS Setup using a VGA display for the MightyBoard 821:
1.
Turn on the VGA monitor and the power supply to the MightyBoard 821.
2.
Start Setup by pressing the [Del] key, when the following message appears on the boot screen.
Hit <Del> if you want to run SETUP
NOTE
If the setting for Quick Boot is [Enabled], you may not see this prompt appear on
screen. If this happens, press the <Del> key early in the boot sequence to enter
BIOS Setup.
3.
Use the <Enter> key to select the screen menus listed in the Opening BIOS screen.
4.
Follow the instructions at the lower right of each screen to navigate through the selections and modify
any settings.
Entering BIOS Setup (Remote Access)
After you set up the BIOS Utility for Remote Access (serial console or console redirection) in VGA mode,
entering the BIOS Setup while in remote access mode is very similar to the steps you use to enter BIOS
Setup with a VGA display.
1.
Turn on the power supply to the MightyBoard 821 and enter the BIOS Setup Utility in VGA mode.
2.
Set the BIOS feature Remote Access to [Enable] under the Advanced menu.
3.
Accept the default options or make your own selections for the balance of the Remote Access fields and
record your settings.
4.
Ensure you select the type of remote serial terminal you will be using and record your selection.
5.
Select Save Changes and Exit and then shut down the MightyBoard 821.
6.
Connect the remote serial terminal (or the PC with communications software) to the COM port you
selected and recorded earlier in the BIOS Setup Utility.
7.
Turn on the remote serial terminal (or the PC with communications software) and set it to the settings
you selected and recorded earlier in the BIOS Setup Utility.
The default settings for the MightyBoard 821 are:
♦
COM1
♦
115200
♦
8 bits
♦
1 stop bit
♦
no parity
♦
no flow control
♦
[Always] for Redirection After BIOS POST
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Chapter 4
8.
BIOS Setup
Restore power to the MightyBoard 821 and look for the screen prompt shown below.
Hit ^C if you want to run SETUP
9.
Press the F4 key to enter Setup (early in the boot sequence if Quick Boot is set to [Enabled].)
If Quick Boot is set to [Enabled], you may never see the screen prompt.
10. Use the <Enter> key to select the screen menus listed in the Opening BIOS screen.
NOTE
The serial console port is not hardware protected. Diagnostic software that
probes hardware addresses may cause a loss or failure of the serial console
functions.
Logo screen
The MightyBoard 821 BIOS supports a graphical logo screen, which can be customized by the user and
displayed when enabled through the BIOS Setup Utility. The graphical image can be a company logo or any
custom image the user wants to display during the boot process. The custom image can be displayed as the
first image displayed on screen during the boot process and remain there, depending on the options selected
in BIOS Setup, while the OS boots.
Logo Screen Image Requirements
The user’s image may be customized with any image editing tool, and the system will automatically convert
the image into an acceptable format to the tools (files and utilities) provided by Ampro. The
MightyBoard 821 Logo Screen utility supports the following image formats:
•
•
•
Bitmap image
♦
16-Color, 640x480 pixels
♦
256-Color, 640x480 pixels
JPG image
♦
16-Color, 640x480 pixels
♦
256-Color, 800x600 pixels
♦
256-Color, 1024x768 pixels
PCX image
♦
•
256-Color, 640x480 pixels
A file size of not greater than 40kB
NOTE
32
For procedures on loading custom images, see the logo screen utility
document available on the Ampro website.
Reference Manual
MightyBoard 821
Appendix A
Technical Support
Ampro Computers, Inc. provides a number of methods for contacting Technical Support listed in the
Table A-1 below. Requests for support through the Ask an Expert are given the highest priority, and usually
will be addressed within one working day.
•
Ampro Ask an Expert – This is a comprehensive support center designed to meet all your technical
needs. This service is free and available 24 hours a day through the Ampro web site at http://
ampro.custhelp. This includes a searchable database of Frequently Asked Questions, which will help
you with the common information requested by most customers. This is a good source of information to
look at first for your technical solutions. However, you must register online if you wish to use the Ask a
Question feature.
•
Personal Assistance – You may also request personal assistance by creating an Ask an Expert account
and then going to the Ask a Question feature. Requests can be submitted 24 hours a day, 7 days a week.
You will receive immediate confirmation that your request has been entered. Once you have submitted
your request, you must log in to go to My Stuff area where you can check status, update your request,
and access other features.
•
InfoCenter – This service is also free and available 24 hours a day at the Ampro web site at http://
www.ampro.com. However, you must sign up online before you can login to access this service.
The InfoCenter was created as a resource for embedded system developers to share Ampro's
knowledge, insight, and expertise. This page contains links to White Papers, Specifications, and
additional technical information.
Table A-1. Technical Support Contact Information
Method
Contact Information
Ask an Expert
http://ampro.custhelp.com
Web Site
http://www.ampro.com
Standard Mail
Ampro Computers, Incorporated
5215 Hellyer Avenue
San Jose, CA 95138-1007, USA
MightyBoard 821
Reference Manual
33
Appendix A
34
Technical Support
Reference Manual
MightyBoard 821
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