CMW686GX233HR
CMW686GX233
cpuModuleTM User’s Manual
RTD Enhanced Award BIOS Versions 4.51.xx
®
USA
Publication CMW686 99.08.16
CMW686GX233 cpuModuleTM
User’s Manual
®
USA
REAL TIME DEVICES USA, INC.
200 Innovation Blvd
PO Box 906
State College, PA 16804-0906
Phone: +1-814-234-8087
FAX: +1-814-234-5218
E-mail
sales@rtdusa.com
techsupport@rtdusa.com
web site
http://www.rtdusa.com
Revision History
99.03.30
New
99.07.26
Added CMR and 128/256 MB
99.08.02
Added PCI bus version for 7686 boards
99.08.16
Fixed Refresh signal description
Publication CMW686 99.08.16
Published by:
Real Time Devices USA, Inc.
200 Innovation Blvd.
P.O. Box 906
State College, PA 16804-0906
Copyright 1999 by Real Time Devices USA, Inc.
All rights reserved
Printed in U.S.A.
The Real Time Devices Logo is a registered trademark of Real Time Devices USA. cpuModule and utilityModule are trademarks of Real Time Devices USA. PhoenixPICO and PheonixPICO BIOS are trademarks
of Phoenix Technologies Ltd. PS/2, PC/XT, PC/AT and IBM are trademarks of International Business Machines Inc. MS-DOS, Windows, Windows 95, Windows 98 and Windows NT are trademarks of Microsoft
Corp. PC/104 is a registered trademark of PC/104 Consortium. All other trademarks appearing in this document are the property of their respective owners.
Chapter 1: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
The CMW686GX233 cpuModule ....................................................8
Specifications ....................................................................................10
Chapter 2: Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Basic Connector Locations ...............................................................14
Cable Kits .........................................................................................15
Connecting Power .............................................................................16
Connecting the utility cable ..............................................................17
Connecting a Keyboard ....................................................................18
Connecting to the PC/104 Bus ..........................................................19
Booting the cpuModule for the First Time .......................................20
If You Misconfigure the cpuModule ................................................21
For More Information .......................................................................22
Chapter 3: Connecting the cpuModule . . . . . . . . . . . . . . . . . . . . . . 23
I/O Connections ................................................................................24
Auxiliary Power, P9 ..........................................................................26
Serial Port 1, P1 ................................................................................28
Serial Port 2, P5 ................................................................................31
Parallel Port, P3 ................................................................................34
Multifunction Connector, P8 ............................................................36
VGA Video Connector, P2 ...............................................................38
Bus Mouse Connector, P6 ................................................................40
PC/104 Bus, P4 and P7 .....................................................................41
Chapter 4: Configuring the cpuModule . . . . . . . . . . . . . . . . . . . . . 47
Configuring with the RTD Enhanced Award BIOS .........................49
Chapter 5: Using the cpuModule . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
The RTD Enhanced Award BIOS ....................................................70
Direct Hardware Control ..................................................................79
Storing Applications On-board .........................................................84
Utility Programs ................................................................................87
Chapter 6: Hardware Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Jumpers .............................................................................................90
Solder Jumpers ..................................................................................92
Mechanical Dimensions ....................................................................93
686GX233 Processor Thermal Management ...................................94
Chapter 7: Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Common Problems and Solutions .....................................................96
Chapter 8: Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
CHAPTER 1: INTRODUCTION
This manual is meant for users developing with the CMW686GX233
cpuModule. It contains information on hardware and software of the cpuModule.
The manual is organized as follows:
Chapter 1:
Introduction
Introduces main features and specifications.
Chapter 2:
Getting Started
Provides abbreviated instructions to get started.
Chapter 3:
Connecting the cpuModule
Provides information on connecting the cpuModule to peripherals.
Chapter 4:
Configuring the cpuModule
Provides information on configuring hardware and software.
Chapter 5:
Using the cpuModule
Provides information needed to develop applications for the cpuModule.
The chapter includes general information on the cpuModule, plus detailed information on storing applications and system functions, and using utility programs.
Chapter 6:
Hardware Reference
Lists jumpers and their locations and mechanical dimensions.
Chapter 7:
Troubleshooting
Offers advice on debugging problems with your system.
Chapter 8:
Warranty
The CMW686GX233 cpuModule
The PC/104 cpuModules described in this manual are designed for industrial applications which require:
• software and hardware compatibility with the PC/AT world
• high-speed "number-crunching" operation
• low power consumption
• small physical dimensions
• high reliability
• good noise immunity
This cpuModule is highly integrated, combining all major functions of a PC/AT computer on one
compact board. It integrates all primary I/O functions of a AT compatible computer:
• SVGA controller
• a keyboard interface
• an ECP/EPP parallel port
• two versatile RS232/422/485 serial ports
• a Real Time Clock
• a speaker port
It also enhances standard AT-compatible computer systems by adding:
•
•
•
one Solid State Disk socket
a non-volatile configuration without a battery
a Watchdog Timer
The figure below shows a simplified block diagram of the cpuModule:
64 or 256 MB
SDRAM
SVGA Video
MediaGX MMX
Enhanced
Processor
RTD Enhanced
BIOS
Cx5520 I/O
Companion
PC/104 ISA Bus
IEEE 1284
Parallel Port
RS-232/422/485
Serial Port
RS-232/422/485
Serial Port
8
National
PC97317
Super I/O
RTC
Keyboard
Watchdog Timer
You can easily customize the cpuModule by stacking PC/104 modules such as modems, LAN controllers, or analog and digital data acquisition modules. Stacking PC/104 modules on the cpuModule
avoids expensive installations of backplanes and card cages and preserves the module's compactness.
RTD Enhanced Award BIOS is also implemented in the cpuModule. This BIOS supports ROMDOS, MS-DOS and Windows operating systems. Drivers in the BIOS allow booting from floppy
disk, hard disk or DiskOnChip, thus enabling the system to be used with traditional disk drives or
non-mechanical drives.
The cpuModule and BIOS are also compatible with most real-time operating systems for PC compatible computers, although these may require creation of custom drivers to use the SSD and watchdog timer.
9
Specifications
CMW686GX233
•
•
•
•
•
Cyrix MediaGXm MMX enhanced microprocessor
233 MHz clock speed
2.9 V processor supply (provided on-board)
16 KB L1 cache
Math coprocessor
Video Controller
SVGA monitor output supports:
•
•
•
•
•
•
•
640 x 480 with 256 colors and 60, 72, 75 Hz refresh
640 x 480 with 65536 colors and 60, 72, 75 Hz refresh
800 x 600 with 256 colors and 60 Hz refresh
800 x 600 with 65536 colors and 60 Hz refresh
1024 x 768 with 256 colors and 60, 70, 75 Hz refresh
1024 x 768 with 65536 colors and 60, 70, 75 Hz refresh
1280 x 1024 with 256 colors and 60, 75 Hz refresh
DMA, Interrupts, Timers
•
•
•
Six (7) DMA channels (8237 compatible)
Fifteen (15) interrupt channels (8259 compatible)
Three (3) counter/timers (8254 compatible)
Memory Configurations
•
64 or 256 M bytes surface mount SDRAM, installed
Solid State Disk
•
•
one 32-pin socket provided with 2 MB DiskOnChip installed
SSD socket can hold one of the following BIOS extension devices
Device
DiskOnChip 2000
DiskOnChip 1000
MCSI PromDisk
Full Read/Write
Access
yes
yes
yes
Maximum Number per
cpuModule
1
1
1
(*) Larger devices may be available in the future.
10
Sizes
2 - 144 MB *
1MB, 2MB
4MB, 8MB *
Peripherals
•
•
•
•
•
•
Two serial ports software configurable for RS232/422/485; baud rates from 50 to 115200
baud in 16450 and 16550A compatible mode and 1.5 Mbaud in Extended UART mode
Parallel port with SPP, ECP, EPP capability and selectable interrupts and DMA channel
PC/AT standard keyboard port
PC speaker port
Real Time Clock (requires user-supplied external battery for date and time backup)
Watchdog Timer with time-out of 1.2 seconds
•
•
•
•
•
RTD Enhanced Award BIOS
Directly supports DiskOnChip
User-configurable using built-in Setup program
Nonvolatile configuration without a battery
Can boot from floppy disk, hard disk or Solid State Disk
BIOS
Connections
•
•
•
•
•
•
•
AT bus, per PC/104 specifications (64-pin P4, 40-pin P7)
SVGA Monitor connector (10-pin P2)
Serial port 1 connector (10-pin P1)
Serial port 2 connector (10-pin P5)
Parallel port connector (26-pin P3)
Multifunction connector (10-pin P8)
Auxiliary power connector (8-pin P9)
Physical Characteristics
•
•
•
Dimensions: 4.05 x 3.775 x 0.6 inches (102.9 x 95.9 x 16mm)
Weight (mass): 3.5 ounces (100 grams)
PCB: 12-layer, mixed surface-mount and thru-hole
Operating environment
•
•
•
•
Power supply: 5V +/- 5%, 10 Watts
686 GXm processor operating temperature: -40 to +85 degrees C case (with proper cooling)
See 686GX233 Processor Thermal Management on page 94
Operating relative humidity: 0 to 95%, non-condensing
Storage temperature : -55 to +125 degrees C.
Power Consumption
Exact power consumption depends on the peripherals connected to the board, the selected SSD configuration and the memory configuration.
The table below lists power consumption for typical configurations and clock speeds:
Typical Power Consumption
Module
Consumption, typ
RAM
SSD
Coprocessor
CMW686GX233
233 MHz
1.9 A (9.5 W)
64 MB
None
Internal
For information on changing clock speeds, see Processor Clock Control on page 83.
11
12
CHAPTER 2: GETTING STARTED
For many users, the factory configuration of the cpuModule can be used
to get a PC/104 system operational. If you are one of these users, you can
get your system up and running quickly by following a few simple steps
described in this chapter. Briefly, these steps are:
• Connect power.
• Connect the utility cable.
• Connect a keyboard.
• Connect a VGA monitor to the SVGA connector.
Refer to the remainder of this chapter for details on each of these steps.
13
Basic Connector Locations
The figure and table below show the connectors used in this chapter
P2
P4
P8
P9
P7
CMW686GX233 Basic Connector Locations
Basic Connectors
Connector
Function
Size
P8
Multifunction
10 pin
P7
PC/104 bus (AT)
40 pin
P4
PC/104 Bus (XT)
64 pin
P9
Auxiliary power
10 pin
P2
SVGA Video
10 pin
For a complete listing of connectors, please refer to I/O Connections on page 24.
NOTE!
14
Pin 1 of each connector is indicated by a square solder pad on the bottom of the PC board and a white box silkscreened on the top of the
board.
Cable Kits
For maximum flexibility, cables are not provided with the cpuModule. You may wish to purchase
our cable kit for the cpuModule.
The XK-CM24 cable kit contains the following:
•
•
•
•
•
Multifunction cable (keyboard socket, battery, reset, speaker)
SVGA monitor (DIL 10 to high density 15 pin D SUB)
Two serial port cables (DIL10 to DSUB9)
Parallel port cable (DIL26 to DSUB25)
Power cable (DIL12 to wire leads)
15
Connecting Power
WARNING!
If you improperly connect power, the module will almost certainly be
damaged or destroyed. Such damage is not warranted! Please verify
connections to the module before applying power.
Power is normally supplied to the cpuModule through the PC/104 bus, connectors P4 and P7. If you
are placing the cpuModule onto a PC/104 stack that has a power supply, you do not need to make
additional connections to supply power.
If you are using the cpuModule without a PC/104 stack or with a stack that does not include a power
supply, refer to Auxiliary Power, P9 on page 26 for more details.
16
Connecting the utility cable
The Multifunction connector, P8, implements the following interfaces:
• AT keyboard
• Speaker output
• System reset input
• Battery input
To use these interfaces, you must connect to the Multifunction connector, making sure the orientation of pin 1 is correct. If you are using the Multifunction cable from our cable kit, the cable provides
a small speaker, a 5-pin circular DIN connector for the keyboard, a push-button for resetting the PC/
104 system, and a lithium battery to provide backup power to the Real Time Clock.
To connect individual devices to the Multifunction connector, please see Connecting the utility cable on page 17.
17
Connecting a Keyboard
You may plug a PC/AT compatible keyboard directly into the circular DIN connector of the Multifunction cable in our cable kit. Some newer keyboards may use a smaller "mini-DIN" connector; you
will need an adapter to plug these keyboards into the cpuModule.
NOTE!
18
Many keyboards are switchable between PC/XT and AT operating
modes, with the mode usually selected by a switch on the back or bottom of the keyboard. For correct operation with this cpuModule, you
must select AT mode.
Connecting to the PC/104 Bus
The PC/104 bus connectors of the cpuModule are simply plugged onto a PC/104 stack to connect to
other devices.
We recommend you follow the procedure below to ensure that stacking of the modules does not
damage connectors or electronics.
WARNING!
Do not force the module onto the stack! Wiggling the module or applying too much pressure may damage it. If the module does not readily
press into place, remove it, check for bent pins or out-of-place keying
pins, and try again.
• Turn off power to the PC/104 system or stack.
• Select and install standoffs to properly position the cpuModule on the PC/104 stack.
• Touch a grounded metal part of the rack to discharge any buildup of static electricity.
• Remove the cpuModule from its anti-static bag.
• Check that keying pins in the bus connector are properly positioned.
• Check the stacking order; make sure an XT bus card will not be placed between two
AT bus cards or it will interrupt the AT bus signals.
• Hold the cpuModule by its edges and orient it so the bus connector pins line up with
the matching connector on the stack.
• Gently and evenly press the cpuModule onto the PC/104 stack.
19
Booting the cpuModule for the First Time
You can now apply power to the cpuModule. You will see a greeting message from the VGA BIOS
and then:
• the cpuModule BIOS version information
• a message requesting you press {Del} to enter the Setup program
If you don’t press {Del}, the cpuModule will try to boot from the current settings.
If you press {Del}, the cpuModule will enter Setup. Once you have configured the cpuModule using
Setup, save your changes and reboot.
20
If You Misconfigure the cpuModule
It is possible that you may incorrectly configure the cpuModule using Setup. If this happens you the
procedure is to:
• Re-boot the cpuModule.
• Press the {Del} key until the cpuModule enters Setup.
• Change the parameters to correctly match your system.
21
For More Information
This chapter has been intended to get the typical user up and running quickly. If you need more details, please refer to the following chapters for more information on configuring and using the cpuModule.
22
CHAPTER 3: CONNECTING THE CPUMODULE
This chapter contains information necessary to use all connectors of the
cpuModule.
23
I/O Connections
The cpuModule comes from the factory ready to connect to the peripherals shown in the following
table.
Default Peripheral Settings
Item
Setting
Controlled by
Boot device
Floppy / DOC
Setup
Serial Port #1
RS232 at 3F8H, IRQ 4
Setup
Serial Port #2
RS232 at 2F8H, IRQ 3
Setup
Parallel Port
Bi-directional at 378H,
IRQ 7
Setup
Video Resolution
2.5 MB, High
Setup
Floppy Drive 1
1.44M 3.5"
Setup
Floppy Drive 2
Not installed
Setup
All IDE Drives
Auto Detect
Setup
If you are using peripherals compatible with this list, you do not need to configure any jumpers or
software settings before connecting peripherals.
If you are using different peripherals, you may need to change the cpuModule settings. In that case,
please see Configuring with the RTD Enhanced Award BIOS on page 49.
24
Connector Locations
The figure and table below show all connectors and the SSD socket of the cpuModule.
P5
P1
P3
P2
P4
U16
P9
P7
P8
F2
P6
CMW686GX233 Connector Locations
CMW686GX233 Connectors
NOTE!
Connector
Function
Size
P1
P2
P3
P4
P5
P6
P7
P8
P9
Serial port 1
Video
Parallel port
PC/104 bus (XT)
Serial port 2
Bus Mouse
PC/104 bus (AT)
Multifunction
Auxiliary Power
10 pin
10 pin
26 pin
64 pin
10 pin
4 pin
40 pin
10 pin
8 pin
Pin 1 of each connector is indicated by a square solder pad on the bottom of the PC board and a white box silkscreened on the top of the
board.
25
Auxiliary Power, P9
WARNING!
If you improperly connect power, the module will almost certainly be
destroyed. Please verify power connections to the module before
applying power.
The power supply can be conveyed to the module either through the PC/104 bus (P4 and P7) or
through the Auxiliary Power connector, J8 The cpuModule only uses +5 VDC and ground. +12
VDC, -12 VDC and -5 VDC may be required on other PC/104 boards in the system..
Auxiliary Power Connector P9
Pin
Signal
Function
1
2
3
4
5
6
7
8
9
10
11
12
GND
+5 V
N/C
+12 V
-5 V
-12 V
GND
+5 V
GND
+3.3 V
CPU V+
+3.3 V
Ground
+5 Volts DC
Not Connected
+12 Volts DC
-5 Volts DC
-12 Volts DC
Ground
+5 Volts DC
Ground
See Note
See Note
See Note
Facing the connector pins, the pinout of the Auxiliary Power connector is:
26
11
9
7
5
3
1
CPU V+
GND
GND
-5V
3.3 V
3.3 V
+5V
-12V
+12V
+5V
12
10
8
6
4
2
GND
NOTES!
-5 VDC, +12 VDC and -12 VDC voltages are not used by the module,
but are connected to the PC/104 bus connectors, P4 and P7.
The 3.3 V pins are used to monitor the onboard 3.3 volt regulator.
Don’t use this as source of 3.3 volts and don’t connect this pin to a 3.3
volt power supply.
The CPU V+ pin is used to monitor the onboard CPU regulator which
is 2.9 volts. Don’t use this as source of 2.9 volts and don’t connect this
pin to a 2.9 volt power supply.
Power Supply Protection
The cpuModule has protection circuitry which helps prevent damage due to problems with the +5V
supply, such as:
• Reversed polarity
• Overvoltage
• Overcurrent
The circuitry includes a user-replaceable fuse, which is located near the PC/104 bus connector. This
fuse is a:
•
•
3 amp Nano fuse
Littelfuse part number R451 003
27
Serial Port 1, P1
The first serial port is implemented on connector P1. It is normally configured as a PC compatible
full-duplex RS232 port, but you may use the Setup program to re-configure is as half- or full-duplex
RS422 or RS485. The I/O address and corresponding interrupt must also be selected using Setup.
The available I/O addresses and the corresponding interrupts are shown in the following table
First Serial Port Settings
I/O Address
IRQ
03F8H
02F8H
03E8H
02E8H
IRQ4
IRQ3
IRQ4
IRQ3
First Serial Port UART
The first serial port is implemented with a 16550-compatible UART (Universal Asynchronous Receiver/Transmitter). This UART is capable of baud rates up to 115.2 kbaud in 16450 and 16550A
compatible mode and 1.5 Mbaud in Enhanced UART mode, and includes 16-byte FIFO. Please refer
to any standard PC-AT hardware reference for the register map of the UART.
RS232 Serial Port (Default)
The full-duplex RS232 mode is the default setting on the cpuModule. With this mode enabled, connector P1 must be connected to RS232 compatible devices. The following table gives the connector
pinout and shows how to connect to an external serial connector, either DB25 or DB 9 compatible.
Connector P1 in RS-232 Mode
Pin
Signal
Function
in/out
DB25
DB9
1
2
3
4
5
6
7
8
9,10
DCD
DSR
RXD
RTS
TXD
CTS
DTR
RI
GND
Data Carrier Detect
Data Set Ready
Receive Data
Request To Send
Transmit data
Clear To Send
Data Terminal Ready
Ring Indicate
Signal Ground
in
in
in
out
out
in
out
in
--
8
6
3
4
2
5
20
22
7
1
6
2
7
3
8
4
9
5
Facing the connector pins, the pinout is:
28
9
7
5
3
1
GND
DTR
TXD
RXD
DCD
GND
RI
CTS
RTS
DSR
10
8
6
4
2
RS422 or RS485 Serial Port
You may use Setup to configure the first serial port as RS422 or RS485. In this case, you must connect P1 to an RS422 or RS485 compatible device.
When using RS422 or RS485 mode, you can use the port in either half-duplex (two-wire) or fullduplex (four-wire) configurations. For half-duplex (2-wire) operation, you must connect RXD+ to
TXD+, and connect RXD- to TXD-.
NOTE!
A 120 ohm termination resistors is provided on the cpuModule. Termination is usually necessary on all RS422 receivers and at the ends of the
RS485 bus.
If the termination resistor is required, it can be enabled by closing jumper JP1.
RS422 and RS485 Mode Pinout
The following table gives the pinout of connector J3 when RS422 or RS485 modes are enabled.
Connector P1 in RS-422/485 Mode
Pin
Signal
1
2
3
4
5
6
7
8
9,10
RXD+
TXDTXD+
RXD-
gnd
Function
in/out
Not connected
Not connected
Receive Data (+)
Transmit Data (-)
Transmit Data (+)
Receive Data (-)
Not connected
Not connected
Signal ground
--in
out
out
in
----
Facing the connector pins, the pinout is:
9
7
5
3
1
GND
-
TXD+
RXD+
-
GND
-
RXD-
TXD-
-
10
8
6
4
2
Note when using RS422 or RS485 Mode
When using the serial port in RS422 or RS485 mode, the serial transmitters are enabled and disabled
under software control; the receivers are always enabled.
The transmitters are enabled by manipulating the Request To Send (RTS*) signal of the first serial
port controller. This signal is controlled by writing bit 1 of the Modem Control Register (MCR) as
follows:
29
• If MCR bit 1 = 1, then RTS* = 0, and serial transmitters are disabled
• If MCR bit 1 = 0, then RTS* = 1, and serial transmitters are enabled
For more information on the serial port registers, including the MCR, please refer to a standard PCAT hardware reference for the 16550-type UART.
30
Serial Port 2, P5
The second serial port is implemented on connector P5. It is normally configured as a PC compatible
full-duplex RS232 port, but you may use the Setup program to re-configure is as half- or full-duplex
RS422 or RS485. The I/O address and corresponding interrupt must also be selected using Setup.
The available I/O addresses and the corresponding interrupts are shown in the following table
Second Serial Port Settings
I/O Address
Default IRQ
03F8H
02F8H
03E8H
02E8H
IRQ4
IRQ3
IRQ4
IRQ3
Second Serial Port UART
The second serial port is implemented with a 16550-compatible UART (Universal Asynchronous
Receiver/Transmitter). This UART is capable of baud rates up to 115.2 kbaud in 16450 and 16550A
compatible mode and 1.5 Mbaud in Enhanced UART mode, and includes 16-byte FIFO. Please refer
to any standard PC-AT hardware reference for the register map of the UART.
RS232 Serial Port (Default)
The full-duplex RS232 mode is the default setting on the cpuModule. With this mode enabled, connector P5 must be connected to RS232 compatible devices. The following table gives the connector
pinout and shows how to connect to an external serial connector, either XT (DB25) or AT(DB 9)
compatible.
Connector P5 in RS-232 Mode
Pin
1
2
3
4
5
6
7
8
9,10
Connector P5: Pin Assignment in RS232 Mode
Signal
Function
in/out DB25
DCD
DSR
RXD
RTS
TXD
CTS
DTR
RI
GND
Data Carrier Detect
Data Set Ready
Receive Data
Request To Send
Transmit data
Clear To Send
Data Terminal Ready
Ring Indicate
Signal Ground
in
in
in
out
out
in
out
in
--
8
6
3
4
2
5
20
22
7
DB9
1
6
2
7
3
8
4
9
5
31
Facing the connector pins, the pinout is:
9
7
5
3
1
GND
DTR
TXD
RXD
DCD
GND
RI
CTS
RTS
DSR
10
8
6
4
2
RS422 or RS485 Serial Port
You may use Setup to configure the second serial port as RS422 or RS485. In this case, you must
connect P5 to an RS422 or RS485 compatible device.
When using RS422 or RS485 mode, you can use the port in either half-duplex (two-wire) or fullduplex (four-wire) configurations. For half-duplex (2-wire) operation, you must connect RXD+ to
TXD+, and connect RXD- to TXD-..
NOTE!
A 120 ohm termination resistors is provided on the cpuModule. Termination is usually necessary on all RS422 receivers and at the ends of the
RS485 bus.
If the termination resistor is required, it can be enabled by closing jumper JP2.
RS422 and RS485 Mode Pinout
The following table gives the pinout of connector J4 when RS422 or RS485 modes are enabled.
Connector P5 in RS-422/485 Mode
Pin
Signal
1
2
3
4
5
6
7
8
9,10
RXD+
TXDTXD+
RXD-
gnd
Function
in/out
Not connected
Not connected
Receive Data (+)
Transmit Data (-)
Transmit Data (+)
Receive Data (-)
Not connected
Not connected
Signal ground
--in
out
out
in
----
Facing the connector pins, the pinout is:
32
9
7
5
3
1
GND
-
TXD+
RXD+
-
GND
-
RXD-
TXD-
-
10
8
6
4
2
Note when using RS422 or RS485 Mode
When using the serial port in RS422 or RS485 mode, the serial transmitters are enabled and disabled
under software control; the receivers are always enabled.
The transmitters are enabled by manipulating the Request To Send (RTS*) signal of the second serial port controller. This signal is controlled by writing bit 1 of the Modem Control Register (MCR)
as follows:
•
If MCR bit 1 = 1, then RTS* = 0, and serial transmitters are disabled
•
If MCR bit 1 = 0, then RTS* = 1, and serial transmitters are enabled
For more information on the serial port registers, including the MCR, please refer to a standard PCAT hardware reference for the 16550-type UART.
33
Parallel Port, P3
The parallel port is available on connector P3. You can use Setup to select its address, associated interrupt,
and choose between its operational modes (SPP, ECP, EPP 1.7 and EPP 1.9).
The pinout of the connector allows a ribbon cable to directly connect it to a DB25 connector, thus
providing a standard PC compatible port.
The following tables lists the parallel port signals and explains how to connect it to a DB25 connector to obtain a PC compatible port.
NOTE!
For correct operation, keep the length of the cable connecting the cpuModule and parallel device less than 3 meters (10 feet).
Parallel Port Connector, P3
Parallel Port Connector, P3
34
Pin
Signal
Function
in/out
DB25
1
STB
Strobe Data
out
1
2
AFD
Autofeed
out
14
3
PD0
Printer Data 0 (LSB)
out
2
4
ERR
Printer Error
in
15
5
PD1
Parallel Data 1
out
3
6
INIT
Initialize printer
out
16
7
PD2
Printer Data 2
out
4
8
SLIN
Select printer
out
17
9
PD3
Printer Data 3
out
5
10
GND
Signal ground
--
18
11
PD4
Printer Data 4
out
6
12
GND
Signal ground
--
19
13
PD5
Printer Data 5
out
7
14
GND
Signal ground
--
20
15
PD6
Printer Data 6
out
8
16
GND
Signal ground
--
21
17
PD7
Printer Data 7 (MSB)
out
9
18
GND
Signal ground
--
22
19
ACK
Acknowledge
in
10
20
GND
Signal ground
--
23
Parallel Port Connector, P3
21
BSY
Busy
in
11
22
GND
Signal ground
--
24
23
PE
Paper End
in
12
24
GND
Signal ground
--
25
25
SLCT
Ready To Receive
in
13
26
GND
Signal ground
--
26
35
Multifunction Connector, P8
The Multifunction connector on P8 implements the following functions:
• Speaker output
• AT keyboard
• System reset input
• Watchdog Timer output
• Battery Input
The following table gives the pinout of the Multifunction connector.
P8
Pin
Signal
Function
in/out
1
2
3
4
5
6
7
8
9
10
SPKR+
SPKRRESET
Speaker output (open collector)
Speaker output (+5 volts)
Manual push button reset
Not connected
Keyboard Data
Keyboard Clock
Ground
Keyboard Power (+5 volts)
Battery input
Not Connected
out
out
in
out
in
out
-out
in
KBD
KBC
GND
KBP
BAT
Facing the connector pins, the pinout is:
9
7
5
3
1
BAT
GND
KBD
RESET
SPKR+
KBP
KBC
8
6
10
SPKR4
2
Speaker
A speaker output is available on two pins of the Multifunction connector. These outputs are controlled by a transistor to supply 0.1 watt of power to an external speaker. The external speaker should
have 8 ohm impedance and be connected between pin 1 and pin 2.
Keyboard
An AT compatible keyboard can be connected to the Multifunction connector. Usually PC keyboards come with a cable ending with a 5-pin male ’DIN’ connector. The following table lists the
relationship between the Multifunction connector pins and a standard ’DIN’ keyboard connector.
To ensure correct operation, check that the keyboard is either an AT compatible keyboard or a switchable XT/AT keyboard set to AT mode. Switchable keyboards are usually set by a switch on the
back or bottom of the keyboard.
36
Pin
5
6
7
8
Keyboard Connector
Signal
Function
KBD
KBC
GND
KBP
Keyboard Data
Keyboard Clock
Ground
Keyboard Power (+5 Volts)
DIN
2
1
4
5
System Reset
Pin 3 of the multifunction connector allows connection of an external push-button to manually reset
the system. The push-button should be normally open, and connect to ground when pushed.
Battery
Pin 9 of the multifunction connector is the connection for an external backup battery (in the range
2.40 V to 4.15 V; typically 3.0 or 3.6 V). This battery is used by the cpuModule when system power
is removed, to preserve the date and time in the Real Time Clock
37
VGA Video Connector, P2
The VGA video output is available on P2. The following table gives the pinout of the video connector.
VGA Video Connector, P2
Pin
Signal
Function
in/out
1
2
3
4
5
6
7
8
9
10
VSYNC
HSYNC
DDCSCL
RED
DDCSDA
GREEN
N/C
BLUE
GND
GND
Vertical Sync
Horizontal Sync
Monitor communications clock
Red analog output
Monitor communications data
Green analog output
Not connected
Blue analog output
Ground
Ground
out
out
out
out
bidi
out
-out
out
out
Facing the connector pins, the pinout is:
9
7
5
3
1
GND
N/C
DDCSDA
DDCSCL
VSYNC
GND
BLUE
GREEN
RED
HSYNC
10
8
6
4
2
:
Supported Video Resolutions and BIOS Settings
38
Resolution
Colors
Refresh Rate
Minimum BIOS Video
Resolution Setting
640 x 480
640 x 480
640 x 480
640 x 480
640 x 480
640 x 480
800 x 600
800 x 600
1024 x 768
1024 x 768
1024 x 768
1024 x 768
1024 x 768
1024 x 768
1280 x 1024
256
256
256
64 K
64 K
64 K
256
64 K
256
256
256
64 K
64 K
64 K
256
60
72
75
60
72
75
60
60
60
70
75
60
70
75
60
Low 1.25 MB
Low 1.25 MB
Low 1.25 MB
Medium 1.5 MB
Medium 1.5 MB
Medium 1.5 MB
Low 1.25 MB
Medium 1.5 MB
Low 1.25 MB
Low 1.25 MB
Low 1.25 MB
High 2.5 MB
High 2.5 MB
High 2.5 MB
High 2.5 MB
Supported Video Resolutions and BIOS Settings
Resolution
Colors
Refresh Rate
Minimum BIOS Video
Resolution Setting
1280 x 1024
256
70
High 2.5 MB
39
Bus Mouse Connector, P6
The Bus Mouse is available on P6. The following table gives the pinout of the Bus Mouse connector.
Bus Mouse Connector, P6
Pin
Signal
Function
in/out
1
2
3
4
+5 V
GND
MCLK
MDAT
+5 Volts
Ground
Mouse Clock
Mouse Data
out
out
out
bidi
Facing the connector pins, the pinout is:
40
3
1
MCLK
+5 V
MDAT
GND
4
2
PC/104 Bus, P4 and P7
Connectors P4 and P7 carry signals of the PC/104 bus; these signals match definitions of the IEEE
P996 standard. The following tables list the pinouts of the PC/104 bus connectors.
The following table lists the signals of the XT portion of the PC/104 bus (see Notes below AT Bus
table).
PC/104 XT Bus Connector, P4
Pin
Row A
Row B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
N.C.
SD7
SD6
SD5
SD4
SD3
SD2
SD1
SD0
IOCHRDY
AEN
SA19
SA18
SA17
SA16
SA15
SA14
SA13
SA12
SA11
SA10
SA9
SA8
SA7
SA6
SA5
SA4
SA3
SA2
SA1
SA0
0V
0V
RESETDRV
+5V
IRQ2
-5V
DRQ2
-12V
N.C.
+12V
(Keying pin)
SMEMW*
SMEMR*
IOW*
IOR*
DACK3*
DRQ3
DACK1*
DRQ1
REFRESH*
SYSCLK
IRQ7
IRQ6
IRQ5
IRQ4
IRQ3
DACK2*
TC
BALE
+5V
OSC
0V
0V
41
The following table lists signals of the AT portion of the PC/104 bus.
PC/104 AT Bus Connector, P7
Pin
Row C
Row D
1
0V
0V
2
SBHE*
MEMCS16*
3
LA23
IOCS16*
4
LA22
IRQ10
5
LA21
IRQ11
6
LA20
IRQ12
7
LA19
IRQ15
8
LA18
IRQ14
9
LA17
DACK0*
10
MEMR*
DRQ0
11
MEMW*
DACK5*
12
SD8
DRQ5
13
SD9
DACK6*
14
SD10
DRQ6
15
SD11
DACK7*
16
SD12
DRQ7
17
SD13
+5V*
18
SD14
MASTER*
19
SD15
0V
20
(Keying pin)
0V
Notes:
ISA bus refresh is not supported by this cpuModule.
Keying pin positions have the pin cut on the bottom of the board and the hole plugged in the connector to prevent misalignment of stacked modules. This is a feature of the PC/104 specification and
should be implemented on all mating PC/104 modules.
Signals marked with (*) are active-low.
All bus lines can drive a maximum current of 4 mA at TTL voltage levels.
42
PC/104 Bus Signals
The following table contains brief descriptions of the PC/104 bus signals.
PC/104 Bus Signals
Signal
I/O
Description
AEN
O
Address ENable: when this line is active (high), it means a DMA
transfer is being performed and therefore the DMA controller has control over the data bus, the address bus, and the control lines.
BALE
O
Bus Address Latch Enable, active high. When active, it indicates that
address lines SA0 to SA19 are valid.
DACKx*
O
DMA ACKnowledge x=0-7, active low, used to acknowledge DMA
requests.
DRQx
I
DMA Request x=0-7: these are asynchronous lines used by peripheral
devices to request DMA service. They have increasing priority from
DRQ0 up to DRQ7. A DMA request is performed by setting the DRQ
line high and keeping it high until the corresponding DACK line is activated.
ENDXFR*
I/O
This is the only synchronous signal of the PC/104 bus and it is active
low. It indicates that the current bus cycle must be performed with 0
wait states. It is used only for 16-bit boards.
IOCHCHK*
I
I/O Channel Check, active low, indicates an error condition that cannot be corrected.
IOCHRDY
I
I/O Channel Ready: this line, usually high (ready) is pulled to a low
level by devices which need longer bus cycles.
IOCS16*
I
I/O Chip Select 16-bit: this line, active low, is controlled by devices
mapped in the I/O address space. It indicates they have a 16-bit bus
width.
IOR*
O
I/O Read, active low, indicates when the devices present on the bus
can send their information on the data bus.
IOW*
O
I/O Write, active low. When active, it allows the peripheral devices to
read data present on the data bus.
IRQx
I
Interrupt Request: x = 2 to 15, active on rising edge. IRQ15 has top
priority; the other lines have decreasing priority starting from IRQ14
down to IRQ2. An interrupt request is performed by changing the level of the corresponding line from low to high and keeping it high until
the microprocessor has recognized it.
KEY
N/A
These locations contain mechanical keying pins to help prevent incorrect connector insertion.
O
These signals select a 128kbyte window in the 16Mbyte address space
available on the bus.
LA23..LA17
43
PC/104 Bus Signals
44
MASTER*
I
During a DMA cycle, this active-low signal, indicates that a resource
on the bus is about to drive the data and address lines.
MEMCS16*
I
Memory Chip Select 16-bit: this line, active low, is controlled by devices mapped in the memory address space and indicates they have a
16-bit bus width.
MEMR*
I/O
This active-low signal indicates a memory read operation. Devices using this signal must decode the address on lines LA23..LA17 and
SA19..SA0.
MEMW*
I/O
This active-low signal indicates a memory write operation. Devices
using this signal must decode the address on lines LA23..LA17 and
SA19..SA0.
OSC
O
OSCillator: clock with a 70 ns period and a 50% duty cycle. It is a
14.31818 MHz always presents.
REFRESH*
I
This cpuModule does not support refresh on the ISA bus. This pin is
pulled high with a 4.7 K ohm resistor and may be driven by another
card in the PC/104 stack.
RESETDRV
O
This line, active high, is used to reset the devices on the bus, at poweron or after a reset command.
SA0..19
O
Address bits 0 to 19: these lines are used to address the memory space
and the I/O space. SA0 is the least significant bit while SA19 is the
most significant bit.
SBHE*
O
This active-low signal indicates a transfer of the most significant data
byte (SD15..SD8).
SD8..15
I/O
Data bits: these are the high-byte data bus lines. SD8 is the least significant bit; SD15 the most significant bit.
SD0..7
I/O
Data bits: these are the low-byte data bus lines. SD0 is the least significant bit; SD7 the most significant bit.
SMEMR*
O
Memory Read command, active low.
SMEMW*
O
Memory Write command, active low.
SYSCLK
O
System Clock, 8.0MHz with a 50% duty cycle. Only driven during external bus cycles.
TC
O
Terminal Count: this line is active high and indicates the conclusion
of a DMA transfer.
PC/104 Bus Termination
Termination of PC/104 bus signals is not recommended since this cpuModule incorporates source
termination on bus signals and may cause malfunctions of the cpuModule.
45
46
CHAPTER 4: CONFIGURING THE CPUMODULE
This chapter contains information to configure the cpuModule.
Topics covered in this chapter include:
• Adding SSD Memory
• Configuring Using the Setup Program
47
Installing SSD Memory
This section explains how to add devices to the cpuModule. This procedure is only necessary when
you wish to add or change Solid State Disk memory devices
Installing SSD Memory
You may wish to install SSD memory to use the cpuModule as a "diskless" stand-alone device. The
cpuModule is shipped with a 2 MB M-Systems DiskOnChip, however other devices may be used in
the SSD socket.
Refer to Storing Applications On-board on page 84 for more information on various SSD device
types. Solid State Disk memories are placed in socket U16.
The following table lists possible configurations for the SSD socket:
SSD Support
48
Type
Part
Operation
Capacity
BIOS Extension
Devices
DiskOnChip and
PromDisk
read/write
to 144 MB+
Notes
Configuring with the RTD Enhanced Award BIOS
The cpuModule Setup program allows you to customize the cpuModule's configuration. Selections
made in Setup are stored on the board and read by the BIOS at power-on.
Starting Setup
You can run Setup by:
• Re-boot the cpuModule, and press the {Del} key.
When you are finished with Setup, save your changes and exit. The system will automatically reboot.
Using the Setup Program
All displays in Setup consist of two areas. The left area lists the available selections. The right area
displays help messages which you should always read.
Field Selection
You move between fields in Setup using the keys listed below.
Setup Keys
Key
Æ,Å,
È,Ç
Function
move between fields
+, -,
<PgUp>,
<PgDn>
selects next/previous values in fields
<Enter>
Go to the submenu for the field.
<Esc>
to previous menu then to exit menu
49
Main Memu Setup Fields
The following is a list of Main menu Setup fields.
Main Menu Setup Fields
50
Field
Active keys
Selections
Standard CMOS
Setup
Press <Enter>
to select
Access commonly used settings for the floppy
drives, hard disks, and video.
BIOS Features
Setup
Press <Enter>
to select
Access settings for BIOS features such as boot sequence, keyboard optios and test options.
Chipset Features
Setup
Press <Enter>
to select
Set chipset specific options.
Power management Setup
Press <Enter>
to select
Set power management options.
PNP/PCI Configuration Setup
Press <Enter>
to select
Set PNP and PCI options.
Load BIOS Defaults
Press <Enter>
to select
Load the setup defaults stored in the BIOS.
Load Setup Defaults
Press <Enter>
to select
Load the setup defaults stored in setup.
Integrated Peripherals Setup
Press <Enter>
to select
Set I/O device options
Supervisor Password Setup
Press <Enter>
to select
Set supervisor access password.
User Password
Setup
Press <Enter>
to select
Set user access password.
IDE HDD Aito
Detection
Press <Enter>
to select
Have the BIOS detect the IDE hard disks connected
to the system.
Save and Exit
Setup
Press <Enter>
to select
Save your changes and exit Setup.
Exit without Saving
Press <Enter>
to select
Exit Setup without saving chnages.
Standard CMOS Setup
The following is an alphabetical list of Standard CMOS Setup fields.BIOS Features Setup
Standard CMOS Setup Fields
Field
Active keys
Selections
Date
{0..9},{↵}
Sets the date with the format:
• month / day / year
• You must connect a backup battery, or this
setting will be lost at power down.
Time
{0..9},{↵}
Sets the time with the format:
• hour:minute:second
• You must connect a backup battery, or this
setting will be lost at power down.
+, -, <PgUp>,
<PgDn>
Selects the IDE hard disk type for each interface.
An interface must have a master before a slave
can be added. Make sure you configure the drive
jumpers correctly.
Selections are:
• None
• Auto (Auto detect drive parameters, not all
drives can be auto detected)
• 1 - 45 Standard drive types
• USER (User enters drive parameters)
+, -, <PgUp>,
<PgDn>
Selects the format of each floppy disk:
Selections are:
•
Disabled
•
360 KB, 5¼" Floppy
•
1.2 MB, 5¼" Floppy
•
720 KB, 3½" Floppy
•
1.44/1.25 MB, 3½" Floppy
•
2.88 MB, 3½" Floppy
•
Hard Disk
Primary Master
Primary Slave
Secondary Master
Secondary Slave
Drive A
Drive B
51
BIOS Features Setup
The following is a list of BIOS Features Setup fields.
BIOS Features Setup Fields
Field
52
Active keys
Selections
Virus warning
+, -, <PgUp>,
<PgDn>
Enable or disable virsus warning
• Enable -- Warn if boot sector or partation table
is being modified
• Disable -- Allow boot sector or partation table
modification
•
CPU Internal
Cache
+, -, <PgUp>,
<PgDn>
Enable or disable CPU internal cache
• Enable -- Enable CPU internal 16 KB cache
• Disable -- Disable CPU internal 16 KB cache
Quick power on
self test
+, -, <PgUp>,
<PgDn>
Enable or disable quick boot
• Enable -- Skip or shorten some tests to allow
the system to boot faster
• Disable -- Perform all power on self tests
Boot Sequence
+, -, <PgUp>,
<PgDn>
Select from the options the boot sequence for the
CPU
Swap floppy drive
+, -, <PgUp>,
<PgDn>
Swap floppy drive A: and B:
• Enable -- Floppy connected after the twist in
the floppy wire will be Drive B: and floppy
connected before the twist in the floppy wire
will be Drive A:
• Disable (Normal) -- Floppy connected after the
twist in the floppy wire will be Drive A: and
floppy connected after the twist in the floppy
wire will be Drive B:
Note: This only works with two floppies installed.
Boot up floppy
seek
+, -, <PgUp>,
<PgDn>
Perform floppy seek to determine if floppy is a 40
tracks 360 KB or an 80 track 1.2 MB, 720 KB or
1.44 MB
• Enable -- Perform check
• Disable -- Skip check
Boot up numlock
status
+, -, <PgUp>,
<PgDn>
Set keypad numlock status after boot
• On -- Keypad is number keys
• Off -- Keypad is cursors keys
Gate A20 option
+, -, <PgUp>,
<PgDn>
Selcet gate A20 options
• Normal -- Use keyboard controller to control
A20 gate
• Fast -- Allow chipset to control A20 gate
Typematic rate setting
+, -, <PgUp>,
<PgDn>
Determines if typematic is to be used
• Enable -- Enable typematic rate
• Disable -- Disable typematic rate
BIOS Features Setup Fields
Typematic rate
(chars/sec)
+, -, <PgUp>,
<PgDn>
Select the rate at which keys are accellerated
• 6 -- 6 characters per second
• 8 -- 8 characters per second
• 10 -- 10 characters per second
• 12 -- 12 characters per second
• 15 -- 15 characters per second
• 20 -- 20 characters per second
• 24 -- 24 characters per second
• 30 -- 30 characters per second
Typematic delay
(milliseconds)
+, -, <PgUp>,
<PgDn>
Select the delay between when the key was first
pressed and when accelleration begins
• 250 -- 250 milliseconds
• 500 -- 500 milliseconds
• 750 -- 750 milliseconds
• 1000 -- 1000 milliseconds
Security option
+, -, <PgUp>,
<PgDn>
Limit access with password to the system and setup
or just setup
• System -- The system will not boot and access
to setup will be denied if the correct password
is not entered at the prompt
• Setup -- The system will boot but, access to setup will be denied if the correct password is not
entered at the prompt
Note: To disable security, select Password setting at
the main menu and then you will be asked to enter
a password. Do not type anything, just press <Enter> and it will disable security. Once security is
disabled, you can boot and enter setup freely.
PCI/VGA Pallette
Snoop
+, -, <PgUp>,
<PgDn>
Determines whether an external MPEG ISA VGA
Card can work with the PCI/VGA or not.
• Enable -- When PCI/VGA is working with
MPEG ISA card.
• Disable -- When PCI/VGA is not working with
MPEG ISA card.
OS select for
DRAM > 64 MB
+, -, <PgUp>,
<PgDn>
Select operating system in use:
• OS2 -- If you are using OS2
• Non-OS2 -- All other operating systems
Report No FDD for
Win95
+, -, <PgUp>,
<PgDn>
Enable reporting that there is no floppy disk drives
to Win 95
• Yes -- Report to Win 95 if there are no floppies
• No -- Do not report to Win 95 if there are no
floppies
BIOS shadowing
+, -, <PgUp>,
<PgDn>
Enable or disable copying slow ROMs to fast
DRAM for the following memory areas:
• Video BIOS -- C0000 - C7FFFF
• C8000 - CBFFF
• CC000 - CFFFF
• D0000 - D3FFF
• D4000 - D7FFF
• D8000 - DBFFF
• DC000 - DFFFF
53
BIOS Features Setup Fields
Cyrix 6x86/MII
CPUID
54
+, -, <PgUp>,
<PgDn>
Enable or disable the CPUID instruction
• Enable -- Allow the CPUID instruction
• Disable -- Don’t allow the CPUID instruction
Chipset Features Setup
The following is a list of Chipset Features Setup fields.
Chipset Features Setup Fields
Recovery time is the length of time, measured in CPU clocks, which the system will delay
after the conpletion of an input/output request. This delay takes place because the CPU is
operting so much faster than the I/O bus that the CPU must be delayed to allow for the completion of the I/O.
Field
Active keys
Selections
16-bit I/O recovery (Clocks)
+, -, <PgUp>,
<PgDn>
Set the recovery time for 16-bit I/O cycles. Selection is from 1 to 16 clocks. Defalut is 5.
8-bit I/O recovery (Clocks)
+, -, <PgUp>,
<PgDn>
Set the recovery time for 8-bit I/O cycles. Selection
is from 1 to 16 clocks. Defalut is 5.
55
Power Management Setup Fields
The following is a list of Power Management Setup fields.
Power Management Setup Fields
Field
Active keys
Selections
+, -,
<PgUp>,
<PgDn>
Select power management mode
• Disable -- Power management off
• Min Saving -- Minimum power savings, maximum performance
• Max Saving -- Maximum power savings, minimum performance
• User Defined -- User selects the power management functions to suit the application
Doze Mode
+, -,
<PgUp>,
<PgDn>
Select inactivity time delay before entering doze
mode
• Disable -- Doze mode off
• 1 -- 1 Second
• 2 -- 2 Seconds
• 4 -- 4 Seconds
• 8 -- 8 Seconds
• 10 -- 10 Seconds
• 12 -- 12 Seconds
• 15 -- 15 Seconds
• 16 -- 16 Seconds
Standby Mode
+, -,
<PgUp>,
<PgDn>
Select inactivity time delay before entering standby
mode
• Disable -- Standby mode off
• 1 -- 1 Minute
• 2 -- 2 Minutes
• 4 -- 4 Minutes
• 8 -- 8 Minutes
• 10 -- 10 Minutes
• 12 -- 12 Minutes
• 15 -- 15 Minutes
• 16 -- 16 Minutes
• 20 -- 20 Minutes
• 30 -- 30 Minutes
• 40 -- 40 Minutes
• 60 -- 60 Minutes
Power management
56
Power Management Setup Fields
HDD Power
Down
+, -,
<PgUp>,
<PgDn>
Select inactivity time delay before hard disk power
down
• Disable -- HDD power down off
• 1 -- 1 Minute
• 2 -- 2 Minutes
• 4 -- 4 Minutes
• 8 -- 8 Minutes
• 10 -- 10 Minutes
• 12 -- 12 Minutes
• 15 -- 15 Minutes
• 16 -- 16 Minutes
• 20 -- 20 Minutes
• 30 -- 30 Minutes
• 40 -- 40 Minutes
• 60 -- 60 Minutes
Modem use
IRQ
+, -,
<PgUp>,
<PgDn>
Select IRQ for modem wakeup
• NA -- Not Avialable
• 3 -- IRQ 3
• 4 -- IRQ 4
• 5 -- IRQ 5
• 7 -- IRQ 7
• 9 -- IRQ 9
• 10 -- IRQ 10
• 11 -- IRQ 11
Throttle Duty
Cycle
+, -,
<PgUp>,
<PgDn>
Select throttle duty cycle.
• 12.5 -- 12.5% Mininum savings
• 33.3 -- 33.3%
• 50.0 -- 50.0%
• 75.0 -- 75.0% Maximum savings
RTC alarm
function
+, -,
<PgUp>,
<PgDn>
Select RTC alarm function to bring CPU out of
standby
• Enable -- Turn on RTC Alarm and set as below
• Disable -- Turn off RTC Alarm
RTC on by
date (of month)
+, -,
<PgUp>,
<PgDn>
Enter the day of the month to come out of standby.
Options are 0 - 31.
RTC on by
time (HH:MM)
+, -,
<PgUp>,
<PgDn>
Enter the time of day to come out of standby. Options are 0 - 23 : 0 - 59.
57
Power Management Setup Fields
IRQ that will
bring the CPU
out of power
management
58
+, -,
<PgUp>,
<PgDn>
Select IRQs that will wake the CPU out of suspend
mode
• IRQ 1
• IRQ 3
• IRQ 4
• IRQ 5
• IRQ 6
• IRQ 7
• IRQ 9
• IRQ 10
• IRQ 11
• IRQ 12
• IRQ 13
• IRQ 14
• IRQ 15
PNP/PCI Configuration Setup Fields
The following is a list of PNP/PCI Configuration Setup fields.
PNP/PCI Configuration Setup Fields
Field
Active keys
Selections
PNP OS installed
+, -,
<PgUp>,
<PgDn>
Select if you are using a PNP aware operating system. If you select Yes the Operating System will
change the I/O assignements made in the BIOS.
• Yes -- Using a PNP operating system such as
Microsoft Windows 95/98/NT
• No -- Not using a PNP operating system
Resources controlled by
+, -,
<PgUp>,
<PgDn>
How PNP resources are controlled
• Auto -- BIOS configures the PNP devices
• Manual -- User configures PNP devices
Reset Configuration Data
+, -,
<PgUp>,
<PgDn>
Select Enable to clear the Extended System Configuration Data (ESCD) area. This will make the
CPU search for legacy devices and store the updated info. This field will automatically return to
disable after the next boot.
IRQ assigned
to
+, -,
<PgUp>,
<PgDn>
Select whether interrupts are to be used by legacy
ISA devices or PCI/PNP ISA devices.
• IRQ 3 -- PCI/ISA PNP or Legacy ISA
• IRQ 4 -- PCI/ISA PNP or Legacy ISA
• IRQ 5 -- PCI/ISA PNP or Legacy ISA
• IRQ 6 -- PCI/ISA PNP or Legacy ISA
• IRQ 7 -- PCI/ISA PNP or Legacy ISA
• IRQ 9 -- PCI/ISA PNP or Legacy ISA
• IRQ 10 -- PCI/ISA PNP or Legacy ISA
• IRQ 11 -- PCI/ISA PNP or Legacy ISA
• IRQ 12 -- PCI/ISA PNP or Legacy ISA
• IRQ 13 -- PCI/ISA PNP or Legacy ISA
• IRQ 14 -- PCI/ISA PNP or Legacy ISA
• IRQ 15 -- PCI/ISA PNP or Legacy ISA
DMA assigned to
+, -,
<PgUp>,
<PgDn>
Select whether DMA channels are to be used by
legacy ISA devices or PCI/PNP ISA devices.
• DMA 0 -- PCI/ISA PNP or Legacy ISA
• DMA 1 -- PCI/ISA PNP or Legacy ISA
• DMA 2 -- PCI/ISA PNP or Legacy ISA
• DMA 3 -- PCI/ISA PNP or Legacy ISA
• DMA 5 -- P7CI/ISA PNP or Legacy ISA
• DMA 6 -- PCI/ISA PNP or Legacy ISA
• DMA 7 -- PCI/ISA PNP or Legacy ISA
PCI IRQactivated by
+, -,
<PgUp>,
<PgDn>
Select if PCI interrupts are level or edge sensitive.
59
PNP/PCI Configuration Setup Fields
60
Used memory
base address
+, -,
<PgUp>,
<PgDn>
Select the starting address of an upper memory region to exclude from PCI/PNP usage:
• NA -- Upper memory not used by legacy ISA
devices
• C800h
• CC00h
• D000h
• D400h
• D800h
• DC00h
Used memory
length
+, -,
<PgUp>,
<PgDn>
Select the length of an upper memory region to exclude from PCI/PNP usage:
• 8 KB
• 16 KB
• 32 KB
• 64 KB
Integrated Peripherals Setup Fields
The following is a list of Integrated Peripherals Setup fields.
Integrated Peripherals Setup Fields
Field
Active keys
Selections
IDE block
mode
+, -,
<PgUp>,
<PgDn>
Allows the IDE controller to use fast block mode
to transfer data to and from the hard disk.
• Enable -- IDE controller uses block mode
• Disable -- IDE controller does not uses block
mode
Keyboard controller input
clock
+, -,
<PgUp>,
<PgDn>
Select the clock to be used for the keyboard controller
• 8 -- 8 MHz - Default
• 12 -- 12 MHz
• 16 -- 16 MHz
+, -,
<PgUp>,
<PgDn>
Serial port 1, connector P1 settings:
• Disable -- Serial port not used
• Auto -- BIOS/OS controls operation
• 3F8h/IRQ 4 -- Address 3F8h and interrupt 4
• 2F8h/IRQ 3 -- Address 2F8h and interrupt 3
• 3E8h/IRQ 4 -- Address 3E8h and interrupt 4
• 2E8h/IRQ 3 -- Address 2E8h and interrupt 3
+, -,
<PgUp>,
<PgDn>
Select mode for onboard serial port 1
• RS-232 -- RS-232 driver/receiver enabled
• RS-422/485 -- RS-422/485 driver/receiver
enabled
+, -,
<PgUp>,
<PgDn>
Serial port 2, connector P5 settings:
• Disable -- Serial port not used
• Auto -- BIOS/OS controls operation
• 3F8h/IRQ 4 -- Address 3F8h and interrupt 4
• 2F8h/IRQ 3 -- Address 2F8h and interrupt 3
• 3E8h/IRQ 4 -- Address 3E8h and interrupt 4
• 2E8h/IRQ 3 -- Address 2E8h and interrupt 3
Mode
+, -,
<PgUp>,
<PgDn>
Select mode for onboard serial port 2
• RS-232 -- RS-232 driver/receiver enabled
• RS-422/485 -- RS-422/485 driver/receiver
enabled
Onboard Parallel Port
+, -,
<PgUp>,
<PgDn>
Selects parallel port address and interrupt
• Disable -- Parallel port not used
• 378h/ IRQ7 -- Address 378h and interrupt 7
• 278h/ IRQ5 -- Address 278h and interrupt 5
• 3BCh/ IRQ7 -- Address 3BCh and interrupt 7
Onboard serial
port 1:
Mode
Onboard serial
port 2:
61
Integrated Peripherals Setup Fields
Parallel port
mode
+, -,
<PgUp>,
<PgDn>
Select the mode for the parallel port
• SPP -- Standard parallel port
• EPP 1.7 -- Extended parallel port compatible
with version 1.7
• EPP 1.9 -- Extended parallel port compatible
with version 1.9
• ECP -- Extended Capabilities port
• EPP + ECP -- both EPP and ECP mode
ECP mode use
DMA
+, -,
<PgUp>,
<PgDn>
Select DMA for ECP mode
• 1 -- DMA channel 1
• 3 -- DMA channel 3
BIOS extension window
+, -,
<PgUp>,
<PgDn>
Select a 32 KB memory window for BIOS extension devices in the 32-pin SSD socket such as DiskOnChip
• Disable -- Do not use BIOS extension device
• C800 -- Window at C8000h - CFFFFh
• D000 -- Window at D0000h - D7FFFh
• D800 -- Window at D8000h - DFFFFh
Video memory size
+, -,
<PgUp>,
<PgDn>
Select the amount of DRAM to allocate to video
memory
• 1.5 -- 1.5 MB video memory
• 2.5 -- 2.5 MB video memory
Boot Setup Fields
The following is a list of Boot Setup fields.
Boot Setup Fields
Field
Boot Sequence
Hard drive
62
Active keys
Selections
+/-
Select a boot sequence through four devices including diskette, hard drive, ATAPI CD-ROM and network boot.
Enter to
select
Select hard drive to use for boot.
Summary screen
+/-
Enable or disable display of system configuration
information at boot.
Floppy check
+/-
Enable or disable floppy type verify at boot.
Hard disk predelay
+/-
Adds a delay before the first hard disk access by
BIOS to ensure hard disk is initialized. Options
are Disabled, 3, 6, 9, 12, 15, 21 and 30 seconds.
Exit Setup Fields
The following is a list of Exit Setup fields.
Exit Setup Fields
Field
Active keys
Selections
Exit and save
changes
<Enter>
Exit setup and save changes.
Exit discarding
changes
<Enter>
Exit setup without saving the changes.
Load setup defaults
<Enter>
Loads default values for all setup items.
Discard changes
<Enter>
Loads previous values for all setup items.
Save changes
<Enter>
Saves all setup items in non-volatile device.
63
64
CHAPTER 5: USING THE CPUMODULE
This chapter provides information for users who wish to develop their
own applications programs for the cpuModule.
This chapter includes information on the following topics:
• Memory map
• I/O Address map
• Interrupts
• Power On Self Tests (POSTs)
• System Functions (Watchdog Timer, Real Time Clock)
• Storing Applications in Solid State Disk
• Utility Programs
65
Memory Map
The module addresses memory using 24 address lines. This allows a maximum of 224 locations, or
16 Megabytes of memory.
The table below shows how memory in the first megabyte is allocated in the system.
First Megabyte Memory Map
FFFFFHC0000H
ROM
256 KB BIOS in Flash EPROM, shadowed into DRAM during runtime.
EFFFFHC0000H
Run time user memory space. Usually, memory between
C0000H and C7FFFH is used for the BIOS of add-on VGA
video cards.
BFFFFHA0000H
Normally used for video RAM as follows:
CGA
EGA/VGA
Monochrome
0B8000H to 0BFFFFH
0A0000H to 0AFFFFH
0B0000H to 0B7FFFH
9FFFFH00502H
DOS reserved memory area
00501H00400H
BIOS data area
003FFH00000H
Interrupt vector area
Memory beyond the first megabyte can be accessed in real mode, by using EMS or a similar memory
manager. See your OS or programming language references for information on memory managers.
66
Input/Output Address Map
As with all standard PC/104 boards, the Input/Output (I/O) space is addressed by 10 address lines
(SA0-SA9). This allows 210 or 1024 distinct I/O addresses. Any add-on modules you install must
therefore use I/O addresses in the range 0-1023 (decimal) or 000-3FF (hex).
If you add any PC/104 modules or other peripherals to the system you
must ensure they do not use reserved addresses listed below, or malfunctions will occur.
The table below lists I/O addresses reserved for the cpuModule.
I/O Addresses Reserved for the cpuModule
Address Range
Bytes
Device
000H-00FH
16
DMA Controller
010H-01FH
16
Reserved for CPU
020H-021H
2
Interrupt Controller #1
022H-02FH
13
Reserved
040H-043H
4
Timer
060H-064H
5
Keyboard Interface
070H-071H
2
Real Time Clock port
080H-08FH
16
DMA page register
0A0H-0A1H
2
Interrupt controller #2
0C0H-0DFH
32
DMA controller #2
0F0H-0FFH
16
Math co-processor
1F0H-1FFH
16
Hard disk 1
2F8H-2FFH
8
Serial port 2
378H-37FH
8
Parallel port 3
3BCH-3BFH
4
Parallel port 3
3E8H-3EFH
8
Serial port 2
3F0H-3F7H
8
Floppy disk 1
3F8H-3FFH
8
Serial port 2
1
If a floppy or IDE controller is not connected to the system, the I/O addresses listed will not be
occupied.
67
2
Only one of the I/O addresses shown for a Serial port is active at any time. You can use Setup to
select which one is active or to disable it entirely.
3
Only one of the I/O addresses shown for the Parallel printer port is active at any time. You can use
Setup to select which one is active or to disable it entirely.
68
Hardware Interrupts
If you add any PC/104 modules or other peripherals to the system you
must ensure they do not use interrupts needed by the cpuModule, or
malfunctions will occur
The cpuModule supports the standard PC interrupts listed below. Interrupts not in use by hardware
on the cpuModule itself are listed as 'available'.
Hardware Interrupts Used on the cpuModule
Interrupt
Normal Use
Source
0
Timer 0
On-board ISA device
1
Keyboard
On-board ISA device
2
Cascade of IRQ 8-15
On-board ISA device
3
COM2
On-board ISA device
4
COM1
On-board ISA device
5
available
XT bus
6
Floppy 1
XT bus
7
Printer
On-board ISA device
8
Real Time Clock
On-board ISA device
9
available, routed to IRQ
2
XT bus
10
available
AT bus
11
available
AT bus
12
Bus mouse
On-board ISA device
14
IDE hard disk 2
AT bus
15
available
AT bus
1
Floppy disk interrupt, INT6, is available for use if no floppy disk is present in the system and floppy disk is disabled in Setup.
2
Hard disk interrupt, INT14, is available for use if no hard disk drive is present in the system and
hard disk is disabled in Setup.
69
The RTD Enhanced Award BIOS
The RTD Enhanced Award BIOS (Basic Input/Output System) is software that interfaces hardwarespecific features of the cpuModule to an operating system (OS). Physically, the BIOS software is
stored in a Flash EPROM on the cpuModule. Functions of the BIOS are divided into two parts:
The first part of the BIOS is known as POST (Power-On Self-Test) software, and it is active from
the time power is applied until an OS boots (begins execution). POST software performs a series of
hardware tests, sets up the machine as defined in Setup, and begins the boot of the OS;
The second part of the BIOS is known as the CORE BIOS. It is the normal interface between cpuModule hardware and the operating system which is in control. It is active from the time the OS
boots until the cpuModule is turned off. The CORE BIOS provides the system with a series of software interrupts to control various hardware devices.
The following sections discuss the sections of the BIOS in more detail and describe features of the
BIOS which may be useful to you in developing applications.
70
Power On Self Tests (POSTs)
POST Messages
During the Power On Self Test (POST), if the BIOS detects an error requiring you to do something
to fix, it will either sound a beep code or display a message.
If a message is displayed, it will be accompanied by:
PRESS F1 TO CONTINUE, CTRL-ALT-ESC OR DEL TO ENTER SETUP
POST Beep
Currently there are two kinds of beep codes in BIOS. This code indicates that a video error has
occurred and the BIOS cannot initialize the video screen to display any additional information. This
beep code consists of a single long beep followed by three short beeps. The other code indicates that
your DRAM error has occurred. This beep code consists of a single long beep repeatedly.
Error Messages
One or more of the following messages may be displayed if the BIOS detects an error during the
POST. This list includes messages for both the ISA and the EISA BIOS.
CMOS BATTERY HAS FAILED
CMOS battery is no longer functional. It should be replaced.
CMOS CHECKSUM ERROR
Checksum of CMOS is incorrect. This can indicate that CMOS has become corrupt. This error may
have been caused by a weak battery. Check the battery and replace if necessary.
DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER
No boot device was found. This could mean that either a boot drive was not detected or the drive
does not contain proper system boot files. Insert a system disk into Drive A: and press <Enter>. If
you assumed the system would boot from the hard drive, make sure the controller is inserted correctly and all cables are properly attached. Also be sure the disk is formatted as a boot device. Then
reboot the system.
DISKETTE DRIVES OR TYPES MISMATCH ERROR - RUN SETUP
Type of diskette drive installed in the system is different from the CMOS definition. Run Setup to
reconfigure the drive type correctly.
DISPLAY SWITCH IS SET INCORRECTLY
Display switch on the motherboard can be set to either monochrome or color. This indicates the
switch is set to a different setting than indicated in Setup. Determine which setting is correct, and
then either turn off the system and change the jumper, or enter Setup and change the VIDEO selection.
DISPLAY TYPE HAS CHANGED SINCE LAST BOOT
Since last powering off the system, the display adapter has been changed. You must configure the
system for the new display type.
EISA Configuration Checksum Error
ERROR ENCOUNTERED INITIALIZING HARD DRIVE
Hard drive cannot be initialized. Be sure the adapter is installed correctly and all cables are correctly
and firmly attached. Also be sure the correct hard drive type is selected in Setup.
ERROR INITIALIZING HARD DISK CONTROLLER
71
Cannot initialize controller. Make sure the cord is correctly and firmly installed in the bus. Be sure
the correct hard drive type is selected in Setup. Also check to see if any jumper needs to be set correctly on the hard drive.
FLOPPY DISK CNTRLR ERROR OR NO CNTRLR PRESENT
Cannot find or initialize the floppy drive controller. make sure the controller is installed correctly
and firmly. If there are no floppy drives installed, be sure the Diskette Drive selection in Setup is
set to NONE.
KEYBOARD ERROR OR NO KEYBOARD PRESENT
Cannot initialize the keyboard. Make sure the keyboard is attached correctly and no keys are being
pressed during the boot.
If you are purposely configuring the system without a keyboard, set the error halt condition in Setup
to HALT ON ALL, BUT KEYBOARD. This will cause the BIOS to ignore the missing keyboard
and continue the boot.
Memory Address Error at ...
Indicates a memory address error at a specific location. You can use this location along with the
memory map for your system to find and replace the bad memory chips.
Memory parity Error at ...
Indicates a memory parity error at a specific location. You can use this location along with the memory map for your system to find and replace the bad memory chips.
MEMORY SIZE HAS CHANGED SINCE LAST BOOT
Memory has been added or removed since the last boot. In EISA mode use Configuration Utility to
reconfigure the memory configuration. In ISA mode enter Setup and enter the new memory size in
the memory fields.
Memory Verify Error at ...
Indicates an error verifying a value already written to memory. Use the location along with your
system's memory map to locate the bad chip.
OFFENDING ADDRESS NOT FOUND
This message is used in conjunction with the I/O CHANNEL CHECK and RAM PARITY ERROR
messages when the segment that has caused the problem cannot be isolated.
OFFENDING SEGMENT:
This message is used in conjunction with the I/O CHANNEL CHECK and RAM PARITY ERROR
messages when the segment that has caused the problem has been isolated.
PRESS A KEY TO REBOOT
This will be displayed at the bottom screen when an error occurs that requires you to reboot.
Press any key and the system will reboot.
PRESS F1 TO DISABLE NMI, F2 TO REBOOT
When BIOS detects a Non-maskable Interrupt condition during boot, this will allow you to disable
the NMI and continue to boot, or you can reboot the system with the NMI enabled.
RAM PARITY ERROR - CHECKING FOR SEGMENT ...
Indicates a parity error in Random Access Memory.
SYSTEM HALTED, (CTRL-ALT-DEL) TO REBOOT ...
Indicates the present boot attempt has been aborted and the system must be rebooted. Press and hold
down the CTRL and ALT keys and press DEL.
72
FLOPPY DISK(S) fail (80) Æ Unable to reset floppy subsystem.
FLOPPY DISK(S) fail (40) Æ Floppy Type dismatch.
Hard Disk(s) fail (80)
Æ HDD reset failed
Hard Disk(s) fail (40)
Æ HDD controller diagnostics failed.
Hard Disk(s) fail (20)
Æ HDD initialization error.
Hard Disk(s) fail (10)
Æ Unable to recalibrate fixed disk.
Hard Disk(s) fail (08)
Æ Sector Verify failed.
Keyboard is locked out - Unlock the key.
BIOS detect the keyboard is locked. P17 of keyboard controller is pulled low.
Keyboard error or no keyboard present.
Cannot initialize the keyboard. Make sure the keyboard is attached correctly and no keys are being
pressed during the boot.
Manufacturing POST loop.
System will repeat POST procedure infinitely while the P15 of keyboard controller is pull low. This
is also used for M/B burn in test.
BIOS ROM checksum error - System halted.
The checksum of ROM address F0000H-FFFFFH is bad.
Memory test fail.
BIOS reports the memory test fail if the onboard memory is tested error.
RTD Enhanced Award BIOS POST Codes
POST (hex)
Description
01
Clear base memory 0~640K
02
Reserved
03
Initialize EISA registers (EISA BIOS only)
04
Reserved
05
1. Keyboard Controller Self-Test
2. Enable Keyboard Interface
73
RTD Enhanced Award BIOS POST Codes
06
Reserved
07
Verifies CMOS's basic R/W functionality
09
1. Program the configuration register of Cyrix CPU according to the MODBINable
Cyrix Register Table
2. OEM specific cache initialization (if needed)
0A
1. Initialize the first 32 interrupt vectors with corresponding Interrupt handlers Initialize
INT no from 33-120 with Dummy(Spurious) Interrupt Handler
2. Issue CPUID instruction to identify CPU type
3. Early Power Management initialization (OEM specific)
0B
1. Verify the RTC time is valid or not
2. Detect bad battery
3. Read CMOS data into BIOS stack area
4. PnP initializations including (PnP BIOS only)
-Assign CSN to PnP ISA card
-Create resource map from ESCD
5. Assign IO & Memory for PCI devices (PCI BIOS only)
0C
Initialization of the BIOS Data Area (40 : 00 - 40:FF)
0D
1. Program some of the Chipset's value according to Setup. (Early Setup Value Program)
2. Measure CPU speed for display & decide the system clock speed
3. Video initialization including Monochrome, CGA, EGA/VGA. If no display device
found, the speaker will beep which consists of one single long beep followed by two
short beeps.
0E
1. Initialize the APIC (Multi-Processor BIOS only)
2. Test video RAM (If Monochrome display device found)
3. Show messages including:-Award Logo, Copyright string, BIOS Date code & Part
No.
-OEM specific sign on messages
-Energy Star Logo (Green BIOS ONLY)-CPU brand, type & speed
-Test system BIOS checksum(Non-Compress Version only)
0F
DMA channel 0 test
10
DMA channel 1 test
11
DMA page registers test
12-13
Reserved
14
Test 8254 Timer 0 Counter 2.
15
Test 8259 interrupt mask bits for channel 1
16
Test 8259 interrupt mask bits for channel 2
17
Reserved
19
Test 8259 functionality
30
Detect Base Memory & Extended Memory Size
31
1. Test Base Memory from 256K to 640K
2. Test Extended Memory from 1M to the top of memory
74
RTD Enhanced Award BIOS POST Codes
32
1. Display the Award Plug & Play BIOS Extension message (PnP BIOS only)
2. Program all onboard super I/O chips (if any) including COM ports, LPT ports, FDD
port according to setup value
41
Initialize floppy disk drive controller
42
Initialize Hard drive controller
43
If it is a PnP BIOS, initialize serial & parallel ports
44
Reserved
45
Initialize math coprocessor.
50
Write all CMOS values currently in the BIOS stack area back into the CMOS
51
Reserved
52
1. Initialize all ISA ROMs
2. Later PCI initializations (PCI BIOS only)-assign IRQ to PCI devices-initialize all PCI
ROMs
3. PnP Initializations (PnP BIOS only)
-assign IO, Memory, IRQ & DMA to PnP ISA devices
-initialize all PnP ISA ROMs
4. Program shadows RAM according to Setup settings
5. Program parity according to Setup setting
6. Power Management Initialization-Enable/Disable global PM-APM interface initialization
53
1. If it is NOT a PnP BIOS, initialize serial & parallel ports
2. Initialize time value in BIOS data area by translate the RTC time value into a timer
tick value
60
Setup Virus Protection (Boot Sector Protection) functionality according to Setup setting
1A-1D
Reserved
1E
If EISA NVM checksum is good, execute EISA initialization (EISA BIOS only)
1F-29
Reserved
33-3B
Reserved
3C
Set flag to allow users to enter CMOS Setup Utility
3D
1. Initialize Keyboard
2. Install PS2 mouse
3E
Try to turn on Level 2 cache
Note: Some chipset may need to turn on the L2 cache in this stage. But usually, the
cache is turn on later in POST 61h
41H
Enable FDD and detect media type
46-4D
Reserved
4E
If there is any error detected (such as video, kb...), show all the error messages on the
screen & wait for user to press <F1> key
75
RTD Enhanced Award BIOS POST Codes
4F
1. If password is needed, ask for password
2. Clear the Energy Star Logo (Green BIOS only)
BE
Program defaults values into chipset according to the MODBINable Chipset Default Table
BF
1. Program the rest of the Chipset's value according to Setup. (Later Setup Value Program)
2. If auto-configuration is enabled, programmed the chipset with pre-defined values in
the MODBINable Auto-Table
C0
1. Turn off OEM specific cache, shadow...
2. Initialize all the standard devices with default values standard devices includes:
-DMA controller (8237)
-Programmable Interrupt Controller (8259)
-Programmable Interval Timer (8254)
-RTC chip
C1
Auto-detection of onboard DRAM & Cache
C3
1. Test system BIOS checksum
2. Test the first 256K DRAM
3. Expand the compressed codes into temporary DRAM area including the compressed
System BIOS & Option ROMs
C5
Copy the BIOS from ROM into E0000-FFFFF shadow RAM so that POST will go faster
FFH
Boot from FDD
76
Default Configuration
In addition to the Setup configuration stored on the board, the cpuModule has a permanent default
configuration. The system will resort to using this default if an error occurs when accessing the
EPROM which holds the Setup on the module.
The default configuration is listed below.
BIOS Default Configuration
Function
Default selection
IDE Interface 0 Master
IDE Interface 0 Slave
IDE Interface 1 Master
IDE Interface 1 Slave
Boot device
BIOS Extension
Floppy Drive 1
Floppy Drive 2
Serial port 1
Serial port 2
Parallel Port
Keyboard
Video Resolution
Auto detect
Auto detect
Auto detect
Auto detect
Floppy then hard disk
Disabled
3.5" 1.44 Meg
not installed
RS232 at 3F8H
RS232 at 2F8H
LPT1 at 378H
Enabled if connected
High
77
Bypassing the Stored Configuration
Under certain circumstances, you may want to bypass the configuration stored on the board. To do
this press the {Del} key to enter Setup and then you can then reconfigure the cpuModule correctly.
78
Direct Hardware Control
Some of the cpuModule hardware is controlled directly without using BIOS routines. These include:
• Watchdog Timer
• Real Time Clock Control
• Parallel Port Control
The following sections describe use of these features.
79
Watchdog Timer Control
The cpuModule includes a Watchdog Timer, which provides protection against programs "hanging",
or getting stuck in an execution loop where they cannot respond correctly. When enabled, the
Watchdog Timer must be periodically reset by your application program. If it is not reset before the
time-out period of 1.2 seconds expires, it will cause a hardware reset of the cpuModule.
Three functions have been implemented on the cpuModule for Watchdog Timer control. These are:
•
•
•
Watchdog Timer enable
Watchdog Timer disable
Watchdog Timer reset
To enable the watchdog timer you must write a 1 to to Bit 0 of I/O register 1Eh. To ensure compatability with future designs, you should read the register and only change the bit you need to change.
After you enable the watchdog timer, you must reset it at least once every 1.2 seconds by reading I/
O 1Eh. The data read does not matter.
To disable the watchdog timer you must write a 0 to to Bit 0 of I/O register 1Eh.
Enabling the watchdog timer is illustrated in the following QuickBasic program fragment:
temp = INP(&H1E)
temp = temp OR 1
OUTPUT &H1E, temp
’Read I/O port 1Eh
’Set LSB to 1
’Enable WDT
When the watchdog timer is enabled it must be refreshed before it times out or it hardware reset the
system. Refreshing the watchdog timer is illustrated in the following QuickBasic program fragment:
temp = INP(&H1E)
’Read I/O port 1Eh to refresh the WDT
Disabling the watchdog timer is illustrated in the following QuickBasic program fragment:
temp = INP(&H1E)
temp = temp AND &HFE
OUTPUT &H1E, temp
80
’Read I/O port 1Eh
’Clear LSB to 0
’Disable WDT
Real Time Clock Control
The cpuModule is equipped with a Real Time Clock (RTC) which provides system date and time
functions, and also provides 128 non-volatile memory locations. The contents of these memory locations are retained whenever an external backup battery is connected, whether or not system power
is connected.
You may access the RTC date, time, and memory using an index and data register at I/O addresses
70h and 71h. Address 70h is the Index register. It must be written with the number of the register to
read or write. Refer to the map below for valid choices for the index. Data is then written to or read
from the selected register by writing or reading (respectively) the data register at address 71h.
Do not change values stored in the RTC registers listed as
RESERVED in the table below. Doing so will interfere with proper
cpuModule operation.
Registers of the Real Time Clock are shown below:.
Real Time Clock Registers
Registers
(hex)
Registers
(decimal)
Number of
Bytes
Function
00h
0
1
BCD Seconds
02h
2
1
BCD Minutes
04h
4
1
BCD Hours
06h
6
1
Day of week
07h
7
1
Day of month
08h
8
1
Month
09h
9
1
Year
0A-31h
10-49
40
RESERVED- Do not modify!
32h
50
1
BCD Century
33-3Fh
51-63
13
RESERVED - Do not modify!
40-7Fh
64-127
64
User RAM
RTC access is illustrated in the following QuickBasic program fragment:
input "Enter address to write:", i%
input "Enter value to write:", j%
output &h70, i%
output &h71, j%
output &h70,i%
j% = input (&h71)
print "Read back value ";i%;" at address ";j%
81
Parallel Port Control
The parallel port may be operated in SPP (output-only), EPP (bi-directional), and ECP (extended capabilities) modes. The mode may be selected in Setup, or by application software.
82
Processor Clock Control
The processor clock is controller by solder jumpers on the board. These are set at the factory and
should not be adjusted.
Please see Power Consumption on page 11 for a listing of Power Consumption.
83
Storing Applications On-board
The cpuModule was designed to be used in embedded computing applications. In these applications,
magnetic media like hard disks and floppy disks are not very desirable. It is better to eliminate magnetic storage devices and place your operating system and application software into the cpuModule's
Solid State Disk (SSD).
The following section describes two distinctly different ways you may use the Solid State Disk sockets of the cpuModule. These methods allows you to use a wide variety of memory devices to implement on-board Solid State Disk storage, each with its advantages and disadvantages.
84
Ways to Use the Solid State Disk Socket
The way to utilize the Solid State Disk socket of the cpuModule.
• Using a device which installs as a BIOS Extension
BIOS Extension Devices such as Disk On Chip and PromDisk provide a relatively large amount of
read/write disk space. These devices generally appear similar to a conventional hard disk to DOS,
allowing you to copy, delete, and rename files without using any special utilities.
85
BIOS Extension Devices
You can use BIOS Extension Devices like M-Systems Disk On Chip and MCSI PromDisk to implement a Solid State Disk which can be read and written using normal disk commands.
Advantages of using these devices include:
•
•
•
Storage capacity up to 144 MB per socket (more in the future)
Full read/write capability using standard OS file commands
Integrated support for other operating systems is possible
(contact M-Systems for information)
Parts supported by the cpuModule include:
•
•
•
M-Systems 2000 series: MD2200-D144 (144MB)
down to...
M-Systems 2000 series: MD2200-D02 (2MB)
Optional alternate operating system versions of the above parts
• MCSI PromDisk: 72300 (4MB)
• MCSI PromDisk: 72301 (8MB)
Our website at www.rtdusa.com provides links to the websites of these manufacturers.
Installing BIOS Extension Devices
To install these devices, follow this procedure:
•
•
Apply power to the cpuModule and run Setup.
Set A BIOS Extension Window on the advanced setup page. .
NOTE!
•
•
•
•
•
Save your changes and exit Setup.
Turn off the cpuModule.
Install the BIOS Extension Device into the socket.
Reboot the cpuModule. The BIOS Extension Device should appear as the next available
hard drive in your system. If there is no other hard drive installed, it will appear as drive
C:.
Format the new drive using the DOS format command.
NOTE!
•
86
The memory window selected for a BIOS extension device must not be
used by any other program or hardware device. Make sure this window
is not used by EMM386 or another memory manager, Ethernet card,
PCMCIA card, etc.
If you wish to make the drive bootable, you must format it using the /s
switch of the format command. Refer to your OS manual for more
information.
If you wish to boot from the BIOS Extension Device, run Setup and disable any other hard
drive. Set the boot device to Hard Drive. The cpuModule will not boot to a BIOS Extension Device if another hard drive is enabled.
Utility Programs
The cpuModule is supplied with a utility program needed for reprogramming the BIOS. The following sections discuss this utility in detail.
87
BIOS Programming Utility (CMW_PROG.EXE)
The BIOS Build utility program, CMW_PROG.EXE, allows you to re-program the BIOS.
Incorrectly programming the BIOS can completely halt operation of the cpuModule, requiring it to
be returned to the factory. Do not attempt to reprogram the BIOS unless you fully understand the
procedure.
BIOS Organization
The cpuModule BIOS is in a 512k byte Flash EPROM. The BIOS portion of the ROM is at addresses
C0000H through FFFFFH.
Using CMW_PROG
The program is designed to program the Intel 512 KB Boot block Flash BIOS part and is run by entering the following command line:
CMW_PROG <file_name>
Where:
<file_name>:Name of the file to be programmed into the Flash EPROM.
The program uses memory block C8000-CBFFF to program the device. You must make sure there
is no conflict in this area and no memory managers are loaded.
To reprogram the BIOS with the file MYROM.400 (which is 256 KB long), you would use the command line:
cmw_prog myrom.400
88
CHAPTER 6: HARDWARE REFERENCE
This appendix gives information on the cpuModule hardware, including:
•
•
•
•
jumper settings and locations
solder jumper settings and locations
mechanical dimensions
processor thermal management
89
Jumpers
Many cpuModule options are configured by positioning jumpers. Jumpers are labeled on the board
as “JP” followed by a number.
Some jumpers are two-pin, allowing two settings:
•
•
pins 1 and 2 connected (indicated as "closed")
pins 1 and 2 un-connected (indicated as "open")
1
2
The figure below shows the locations of the jumpers used to configure the cpuModule. To use the
figure, position the module with the PC/104 bus connector at the six o'clock position and the component side facing up. The table below lists the jumpers and their settings.
JP6
JP1
JP5
JP2
Jumper
Use
JP1
2-pin jumper
Used to enable/disable 120 ohm termination resistor on first serial port for
RS-422/485 mode.
Factory Default: Open (no termination)
JP2
2-pin jumper
Used to enable/disable 120 ohm termination resistor on second serial port for
RS-422/485 mode.
Factory Default: Open (no termination)
JP5
90
Factory use only; do not close.
JP6
Factory use only; do not close.
91
Solder Jumpers
Solder jumpers are set at the factory and you will not need to change them.
92
Mechanical Dimensions
The following figure shows mechanical dimensions of the module (in inches)..
CMW686GX233 Mechanical Dimensions (+/- 0.005")
93
686GX233 Processor Thermal Management
The industrial grade processor IC of the cpuModule must receive adequate cooling to ensure proper
operation and good reliability. The case temperature of the processor must not exceed +85°C The
processor is therefore supplied with an attached fan and heatsink with a thermal resistance of 5° C/
W. .
NOTE!
This cpuModule is not warranted against damage caused by overheating due to improper or insufficient heatsinking or airflow.
The table below shows the maximum ambient temperature allowed.
θCA for Different Ambient Temperatures (°C/W)
Case Temperature 85° C
Part Number
CMW686GX233
94
Frequency
20° C
25° C
30° C
35° C
40° C
233 MHz
6.59
6.08
5.57
5.07
4.56
CHAPTER 7: TROUBLESHOOTING
Many problems you may encounter with operation of your cpuModule
are due to common errors. This chapter will help you get your system operating properly.
It contains:
• Common problems and solutions
• Troubleshooting a PC/104 system
• How to obtain technical support
• How to return a product
95
Common Problems and Solutions
The following table lists some of the common problems you may encounter while using your cpuModule, and suggests possible solutions.
If you are having problems with your cpuModule, please review this table before contacting technical support.
Problem
Cause
Solution
cpuModule "will not boot"
no power or wrong polarity
check for correct power on PC/104 bus
connectors
incorrect Setup
(video disabled, etc.)
reboot and press {Del} key to run Setup
defective or mis-connected device on bus
check for misaligned bus connectors;
remove other cards from stack
cable connected backwards
verify all cables are connected correctly
SSD installed backwards
check for an SSD memory installed in
socket backwards
device not bootable
use sys command on drive or re-format the
device using the /s switch
device not formatted
format drive using /s switch
power not connected to boot
drive
connect power cable to floppy or hard
drive
Atmel Flash shows disk
space available, but it cannot be written
part smaller than 1.44MB was
formatted as 1.44MB; it will
show space available even
when full
ignore "disk space remaining" messages
from DOS
REMEMBER! A bootable disk contains 3
hidden files plus format info, totalling
about 150kB
will not boot from DiskOnChip
DiskOnChip is not the only
hard drive in system
disable other hard drive(s) in system
using wrong DiskOnChip device (not 32 pin)
change to correct (32 pin) DiskOnChip
Boot device not set to Hard
disk
run Setup and set boot device to Hard
Drive
will not boot from particular drive or device
96
erratic operation
excessive bus loading
reduce number of PC/104 modules in
stack;
remove termination components from bus
signals;
remove any power supply bus terminations
power supply noise
examine power supply output with oscilloscope; glitches below 4.75Vdc will trigger
a reset; add bypass caps
power supply limiting
examine power supply output with oscilloscope; check for voltage drop below 4.75V
when hard drive or floppy drive starts; add
bypass caps
temperature too high
add fan, processor heatsink, or other cooling device(s)
See 686GX233 Processor Thermal Management on page 94.
memory address conflict
check for two hardware devices (e.g.
Ethernet, SSD, Arcnet, PCMCIA) trying
to use the same memory address
check for two software devices (e.g.
EMM386, PCMCIA drivers, etc.) trying to
use the same memory addresses
check for hardware and software devices
trying to use the same memory address
check for an address range shadowed (see
Advanced Setup screen) while in use by
another hardware or software device
I/O address conflict
check for another module trying to use I/O
addresses reserved for the cpuModule between 010h and 01Fh
check for two modules (e.g. dataModules,
PCMCIA cards, Ethernet) trying to use the
same I/O addresses
keyboard does not work
keyboard interface damaged
by misconnection
check if keyboard LEDs light
wrong keyboard type
verify keyboard is an 'AT' type or switch to
'AT' mode
Windows 3.1x installation
program hangs
smartdrive enabled
remove smartdrive command from config.sys, reboot, run install program
floppy drive light always on
cable misconnected
check for floppy drive cable connected
backwards
97
two hard drives will not
work, but one does
both drives configured for
master
set one drive for master and the other for
slave operation (consult drive documentation)
floppy does not work
"data error" due to drive upside down
orient drive properly (upright or on its
side)
will not boot when video
card is removed
illegal calls to video controller
look for software trying to access non-existent video controller for video, sound, or
beep commands
won't boot from PCMCIA
hard drive
booting from PCMCIA is not
supported
boot from SSD, use autoexec.bat to load
PCMCIA drivers, run application from
PCMCIA card
COM port will not work in
RS422 or RS485 modes
not configured for RS422/485
correctly configure serial port in Setup
program
COM port will not transmit
in RS422 or RS485 mode
not enabling transmitters
control RTS* bit of Modem Control Register to enable transmitters; see Serial Port
descriptions
date and time not saved
when power is off
no backup battery
connect a backup battery to the Multifunction connector
98
Troubleshooting a PC/104 System
If you have reviewed the preceding table and still cannot isolate the problem with your cpuModule,
please try the following troubleshooting steps. Even if the resulting information does not help you
find the problem, it will be very helpful if you contact technical support.
Simplify the system. Remove items one at a time and see if one particular item seems to cause the
problem.
Swap components. Try replacing items in the system one-at-a-time with similar items.
99
How to Obtain Technical Support
If after following the above steps, you still cannot resolve a problem with your cpuModule, please
assemble the following information:
• cpuModule model, BIOS version, and serial number
• list of all boards in system
• list of settings from cpuModule Setup program
• printout of autoexec.bat and config.sys files (if applicable)
• description of problem
• circumstances under which problem occurs
Then contact factory technical support:
100
Phone:
814 234-8087
Fax:
814 234-5218
E-mail:
techsupport@rtdusa.com
How to Return a Product
NOTE!
You must have authorization from the factory before returning any item
for any reason!
If you wish to return a product to the factory for service, please follow this procedure:
1)
Read the Limited Warranty to familiarize yourself with our warranty policy.
2)
Contact the factory for a Return Merchandise Authorization (RMA) number.
3)
Write a detailed description of the situation or problem.
Include as much information as possible!
4)
List the name of a contact person, familiar with technical details of the problem
or situation, along with their phone and fax numbers, address, and e-mail
address (if available).
5)
List your shipping address!!
6)
Indicate the shipping method you would like used to return the product to you.
We will not ship by next-day service without your pre-approval.
7)
Carefully package the product, using proper anti-static packaging.
8)
Write the RMA number in large (1") letters on the outside of the package.
9)
Return the package to:
Real Time Devices USA, Inc.
200 Innovation Blvd.
State College PA 16803
USA
101
102
CHAPTER 8: LIMITED WARRANTY
Real Time Devices USA, Inc. warrants the hardware and software products it manufactures and produces to be free from defects in materials and workmanship for one year following the date of shipment from REAL TIME DEVICES USA, INC. This warranty is limited to the original purchaser of
product and is not transferable.
During the one year warranty period, REAL TIME DEVICES USA will repair or replace, at its option, any defective products or parts at no additional charge, provided that the product is returned,
shipping prepaid, to REAL TIME DEVICES USA. All replaced parts and products become the property of REAL TIME DEVICES USA. Before returning any product for repair, customers are required to contact the factory for an RMA number.
THIS LIMITED WARRANTY DOES NOT EXTEND TO ANY PRODUCTS WHICH HAVE
BEEN DAMAGED AS A RESULT OF ACCIDENT, MISUSE, ABUSE (such as: use of incorrect
input voltages, improper or insufficient ventilation, failure to follow the operating instructions that
are provided by REAL TIME DEVICES USA, "acts of God" or other contingencies beyond the control of REAL TIME DEVICES USA), OR AS A RESULT OF SERVICE OR MODIFICATION BY
ANYONE OTHER THAN REAL TIME DEVICES USA. EXCEPT AS EXPRESSLY SET
FORTH ABOVE, NO OTHER WARRANTIES ARE EXPRESSED OR IMPLIED, INCLUDING,
BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, AND REAL TIME DEVICES USA EXPRESSLY DISCLAIMS ALL WARRANTIES NOT STATED HEREIN. ALL IMPLIED WARRANTIES,
INCLUDING IMPLIED WARRANTIES FOR MECHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, ARE LIMITED TO THE DURATION OF THIS WARRANTY. IN
THE EVENT THE PRODUCT IS NOT FREE FROM DEFECTS AS WARRANTED ABOVE,
THE PURCHASER'S SOLE REMEDY SHALL BE REPAIR OR REPLACEMENT AS PROVIDED ABOVE. UNDER NO CIRCUMSTANCES WILL REAL TIME DEVICES USA BE LIABLE
TO THE PURCHASER OR ANY USER FOR ANY DAMAGES, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES, EXPENSES, LOST PROFITS, LOST SAVINGS, OR
OTHER DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PRODUCT.
SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES FOR CONSUMER PRODUCTS, AND SOME STATES DO
NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE
ABOVE LIMITATIONS OR EXCLUSIONS MAY NOT APPLY TO YOU.
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE
OTHER RIGHTS WHICH VARY FROM STATE TO STATE.
103
104
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