PCA-6774 ISA Socket370 SlotPC, VGA/LCD/LVDS/LAN/CFC with optional second LAN and Gigabit LAN Users Manual i
Copyright This document is copyrighted, © 2004. All rights are reserved. The original manufacturer reserves the right to make improvements to the products described in this manual at any time without notice. No part of this manual may be reproduced, copied, translated or transmitted in any form or by any means without the prior written permission of the original manufacturer. Information provided in this manual is intended to be accurate and reliable.
Packing List Before you begin installing your card, please make sure that the following materials have been shipped: • 1 PCA-6774 all-in-one single board computer • 1 startup manual • CD-ROM or disks for utility, drivers, and manual (in PDF format) • 1 power cable p/n: 1703080101 • 1 PS/2 KB/M cable p/n: 1700060202 • 1 COM port cable p/n:1700100250 • 1 Printer cable p/n:1700260250 • 1 FDD cable p/n:1703340400 • 1 EIDE cable p/n:1701400452 If any of these items are missing or damaged, contact your distributo
Additional Information and Assistance 1. Visit the Advantech web site at www.advantech.com where you can find the latest information about the product. 2. Contact your distributor, sales representative, or Advantech's customer service center for technical support if you need additional assistance.
CHAPTER 1 General Information This chapter gives background information on the PCA-6774.
Chapter 1 Introduction 1.1 Introduction Advantech's new PCA-6774 is a new Socket 370 half-sized CPU card that will support up to 1.26GHz Pentium III with 512KB using VIA VT8606"TwisterT" chipset. This SBC includes a 4X AGP controller, a PCI Ethernet interface, and 36-bit TTL interface. Its design is based on the half-sized CPU card and supports ISA bus expansion. Other on-board features include an FDD, LPT, 2 USBs (4 USBs optional), and 2 serial ports. The SSD solution supports CompactFlash cards.
1.2 Features • Supports Socket 370 for VIA C3 and Intel processors up to Pentium III 1.26GHz with 512K (Tualatin). • ISA bus half-sized CPU card • Supports selectable LAN(1 x 10/100BASE-T LAN or 2 x 10/ 100BASE-T LAN or 1 x Gigabit LAN) • 4X AGP graphics for high performance applications • Supports boot from USB device. • Supports wake-on-LAN. • Supports Ring-up by Modem. • Supports LVDS interface. • Supports LCD backlight turn-off function. • RS-485 Auto-flow. 1.3 Specifications 1.3.
• Serial ports: Two serial RS-232 ports: COM1:RS-232 COM2:RS-232/422/485 RS-485 supports AUTO-flow • Parallel port: Parallel port supports SPP/EPP/ECP mode • Keyboard/mouse connector: Supports standard PC/AT keyboard and a PS/2 mouse • Power management: Supports power saving modes including Normal/ Standby/Suspend modes. APM 1.2 compliant • Watchdog timer: 62 level timer intervals • USB: Two universal serial bus ports, Optional 4 ports. 1.3.
1.3.5 Mechanical and Environmental • Dimensions (L x W): 185 x 122 mm(7.28” x 4.80”) • Power supply voltage: +5 V, +12V ±5% • Power requirements: • Max: 6.18 A @ +5 V, 0.22 A @+12 V Typical: 5.5 A @ +5 V, (with PC133 128MB SDRAM,1 GHz) 0.17 A @ +5 V, (with PC133 128MB SDRAM,1 GHz) • Operating temperature: 0 ~ 60°C (32 ~ 140°F) • Operating humidity: 0% ~ 90% Relative Humidity, Non condensing • Weight: 0.
1.4 Board layout: dimensions Figure 1.
Figure 1.
CHAPTER 2 Installation This chapter explains the setup procedures of PCA-6774 hardware, including instructions on setting jumpers and connecting peripherals, switches and indicators. Be sure to read all safety precautions before you begin the installation procedure.
Chapter 2 Installation 2.1 Jumpers The PCA-6774 has a number of jumpers that allow you to configure your system to suit your application. The table below lists the functions of the various jumpers. Table 2.1: Jumpers Label Function J1 CMOS clear J2 Watchdog timer output selection J3 COM2 RS232-422-485 Select 2.2 Connectors On-board connectors link the PCA-6774 to external devices such as hard disk drives, a keyboard, or floppy drives.
. Table 2.
2.3 Locating Connectors(component side) Figure 2.
2.4 Locating Connectors(solder side) Figure 2.
2.5 Setting Jumpers You may configure your card to match the needs of your application by setting jumpers. A jumper is a metal bridge used to close an electric circuit. It consists of two metal pins and a small metal clip (often protected by a plastic cover) that slides over the pins to connect them. To “close” a jumper, you connect the pins with the clip. To “open” a jumper, you remove the clip. Sometimes a jumper will have three pins, labeled 1, 2 and 3.
2.6 Clear CMOS (J1) Warning! To avoid damaging the computer, always turn off the power supply before setting “Clear CMOS.” Before turning on the power supply, set the jumper back to “3.0 V Battery On.” This jumper is used to erase CMOS data and reset system BIOS information. The procedure for clearing CMOS is: 1. Turn off the system. 2. Short pin 2 and pin 3. 3. Return jumper to pins 1 and 2. 4. Turn on the system. The BIOS is now reset to its default setting Table 2.3: CMOS clear (J1) *3.
2.7 COM2 RS232-422-485 Select (J3) Table 2.4: COM2 RS232-422-485 Select PIN RS232* RS422 RS484 1-2 Closed Open Open 3-4 Open Closed Open 5-6 Open Open Closed 2.8 Watchdog timer configuration An on-board watchdog timer reduces the chance of disruptions which EMP (electro-magnetic pulse) interference can cause. This is an invaluable protective device for standalone or unmanned applications. Setup involves one jumper and running the control software (refer to Appendix A). 2.8.
2.9 Installing DIMMs The procedure for installing DIMMs is described below. Please follow these steps carefully. The number of pins are different on either side of the breaks, so the module can only fit in one way. DIMM modules have different pin contacts on each side, and therefore have a higher pin density. 1. Make sure that the two handles of the DIMM socket are in the “open” position. i.e. The handles remain leaning outward. 2.
2.10 ATX power control connector (CN20,CN21) 2.10.1 ATX feature connector (CN1) and soft power switch connector (CN21) The PCA-6774 can support an advanced soft power switch function, if an ATX power supply is used. To enable the soft power switch function: 1. Get the specially designed ATX-to-EBX power cable (PCA-6774 optional item, part no. 1703200100) 2. Connect the 3-pin plug of the cable to CN20 (ATX feature connector). 3. Connect the power on/off button to CN21.
2.11 Printer port connector (CN4) Normally, the parallel port is used to connect the card to a printer. The PCA-6774 includes a multi-mode (ECP/EPP/SPP) parallel port accessed via CN4 and a 26-pin flat-cable connector. You will need an adapter cable if you use a traditional DB-25 connector. The adapter cable has a 26-pin connector on one end, and a DB-25 connector on the other. The parallel port is designated as LPT1, and can be disabled or changed to LPT2 or LPT3 in the system BIOS setup.
2. Attach the appropriate connector on the other end of the cable to the floppy drive(s). You can use only one connector in the set. The set on the end (after the twist in the cable) connects to the A: drive. The set in the middle connects to the B: drive. 3. If you are connecting a 5.25” floppy drive, line up the slot in the printed circuit board with the blocked-off part of the cable connector. If you are connecting a 3.5” floppy drive, you may have trouble determining which pin is number one.
(See your hard drive’s documentation for the location of the connector.) If desired, connect a second drive as described above. Unlike floppy drives, IDE hard drives can connect to either end of the cable. If you install two drives, you will need to set one as the master and one as the slave by using jumpers on the drives. If you install only one drive, set it as the master. 2.
connected to both the CN22(40-pin) and CN23 (20-pin). The pin assignments for both CN22 and CN23 can be found in Appendix C. 2.15.4 LVDS LCD panel connector (CN25) The PCA-6774 uses the VIA "TwisterT" chip that supports 2 channel LVDS LCD panel displays. Users can connect to LVDS LCD with CN25. 2.15.5 Panel type selection(SW1) SW1 is an 8 segment DIP switch for DSTN/TFT panel type and resolution functions Table 2.
2.16 USB connectors (CN6) The PCA-6774 board provides up to two USB (Universal Serial Bus) ports. This gives complete Plug and Play, and hot attach/detach for up to 127 external devices. The USB interfaces comply with USB specification Rev. 1.1, and are fuse protected. The USB interface is accessed through the 5 x 2-pin flat-cable connector, CN6 (USB1, 2). You will need an adapter cable if you use a standard USB connector.
2.18 Power connectors (CN14, CN15) 2.18.1 Main power connector, +5 V, +12 V (CN15) Supplies main power to the PCA-6774 (+5 V), and to devices that require +12 V. 2.18.2 CPU Fan power supply connector (CN14) Provides power supply to CPU cooling fan. Only present when +12 V power is supplied to the board. 2.19 ATX Power & HDD LED, speaker out Connector (CN16, CN17, CN19) Next, you may want to install external switches to monitor and control the PCA-6774.
2.21 Keyboard and PS/2 mouse connector (CN11) The PCA-6774 board provides a keyboard connector that supports both a keyboard and a PS/2 style mouse. In most cases, especially in embedded applications, a keyboard is not used. If the keyboard is not present, the standard PC/AT BIOS will report an error or fail during power-on selftest (POST) after a reset. The PCA-6774's BIOS standard setup menu allows you to select “All, But Keyboard” under the “Halt On” selection.
CHAPTER 3 Software Configuration This chapter details the software configuration information. It shows you how to configure the card to match your application requirements. Award System BIOS will be covered in Chapter 4.
Chapter 3 Software Configuration 3.1 Introduction The system BIOS and custom drivers are located in a 256 KB, 32-pin (JEDEC spec.) Flash ROM device, designated U10. A single Flash chip holds the system BIOS, VGA BIOS, and network Boot ROM image. The display can be configured via software. This method minimizes the number of chips and eases configuration. You can change the display BIOS simply by reprogramming the Flash chip. 3.
2. At the prompt, type AWDFLASH.EXE and press . The VGA configuration program will then display the following: Figure 3.1: VGA setup screen 3. At the prompt, enter the new BIN file which supports your display. When you are sure that you have entered the file name correctly press . 4. The screen will ask ìDo you want to save BIOS?î. If you change your mind or have made a mistake, press N to abort and end the setup procedure.
CHAPTER 4 Chapter 4 Ducks that Need Love! Award BIOS Setup This chapter describes how to set BIOS configuration data.
Chapter 4 Award BIOS Setup 4.1 System test and initialization These routines test and initialize board hardware. If the routines encounter an error during the tests, you will either hear a few short beeps or see an error message on the screen. There are two kinds of errors: fatal and non-fatal. The system can usually continue the boot up sequence with non-fatal errors.
4.2 Award BIOS setup Award’s BIOS ROM has a built-in Setup program that allows users to modify the basic system configuration. This type of information is stored in battery-backed CMOS RAM so that it retains the Setup information when the power is turned off. 4.2.1 Entering setup Power on the computer and press immediately. This will allow you to enter Setup. Figure 4.
4.2.2 Standard CMOS Features setup When you choose the Standard CMOS Features option from the Initial Setup Screen menu, the screen shown below is displayed. This standard Setup Menu allows users to configure system components such as date, time, hard disk drive, floppy drive and display. Once a field is highlighted, on-line help information is displayed in the left bottom of the Menu screen. Figure 4.
4.2.3 Advanced BIOS Features setup By choosing the Advanced BIOS Features Setup option from the Initial Setup Screen menu, the screen below is displayed. This sample screen contains the manufacturer’s default values for the PCA-6774 Series. Figure 4.
4.2.4 Advanced Chipset Features setup By choosing the Advanced Chipset Features option from the Initial Setup Screen menu, the screen below is displayed. This sample screen contains the manufacturer’s default values for the PCA-6774 Series. Figure 4.
4.2.5 Integrated Peripherals Choosing the Integrated Peripherals option from the Initial Setup Screen menu should produce the screen below. Here we see the manufacturer’s default values for the PCA-6774 Series. Figure 4.5: Integrated Peripherals 4.2.6 Power Management Setup By choosing the Power Management Setup option from the Initial Setup Screen menu, the screen below is displayed. This sample screen contains the manufacturer’s default values for the PCA-6774 Series. Figure 4.
4.2.7 PnP/PCI Configurations By choosing the PnP/PCI Configurations option from the Initial Setup Screen menu, the screen below is displayed. This sample screen contains the manufacturer’s default values for the PCA-6774 Series. Figure 4.7: PnP/PCI Configurations 4.2.8 PC Health Status The PC Health Status option displays information such as CPU and motherboard temperatures, fan speeds, and core voltage. Figure 4.
4.2.9 Frequency/Voltage Control By choosing the Frequency/Voltage Control option from the Initial Setup Screen menu, the screen below is displayed. This sample screen contains the manufacturer’s default values for the PCA-6774 Figure 4.9: Frequency/Voltage Control Caution Incorrect settings in Frequency/Voltage Control may damage the system CPU, video adapter, or other hardware.
4.2.10 Load Optimized Defaults Load Optimized Defaults loads the default system values directly from ROM. If the stored record created by the Setup program should ever become corrupted (and therefore unusable), these defaults will load automatically when you turn the PCA-6774 Series system on. Figure 4.10: Load BIOS defaults screen 4.2.
3. At the “Confirm Password” prompt, retype the desired password, then press . 4. Select Save to CMOS and EXIT, type , then . To Change Password 1. Choose the Set Password option from the CMOS Setup Utility main menu and press . 2. When you see “Enter Password,” enter the existing password and press . 3. You will see “Confirm Password.” Type it again, and press . 4.
4.2.13 Exit Without Saving Selecting this option and pressing lets you exit the Setup program without recording any new values or changing old ones.
CHAPTER 5 PCI SVGA Setup Introduction Installation of SVGA drivers -for Windows 95/98/Me -for Windows NT/2000/XP Further information
Chapter 5 PCI SVGA Setup 5.1 Introduction The board has an onboard AGP flat panel/VGA interface. The specifications and features are described as follows: 5.1.1 Chipset The board uses a VIA Twister 8606T chipset from VIA Technology Inc. for its AGP/SVGA controller. It supports many popular LCD, and LVDS LCD displays and conventional analog CRT monitors. The VIA8606T VGA BIOS supports color TFT and DSTN LCD flat panel displays.
5.2 Installation of the SVGA Driver Complete the following steps to install the SVGA driver. Follow the procedures in the flow chart that apply to the operating system that you are using within your board. Notes: 1. The windows illustrations in this chapter are intended as examples only. Please follow the listed steps, and pay attention to the instructions which appear on your screen. 2. For convenience, the CD-ROM drive is designated as "D" throughout this chapter. 5.2.1 Installation for Windows 95 1 1.
2. Choose the "Adapter" tab, then press the "Change..." button. 3. Press the "Have Disk" button.
4. Type in the path: D:\Biscuit\9577\VGA\Win9x_Me 9577 5. Select the highlighted item, and click the "OK" button.
6. "S3 GraphicsTwister" appears under the adapter tab. Click the "Apply" button, then the "OK" button. 7. Press “Yes” to reboot.
5.2.2 Installation for Windows 98/Me 1. Select "Start", "Settings", "Control Panel", "Display", and "Settings," then press the "Advanced..." button.
2. Select “Adapter,” then “Change.
3. Press “Next,” then “Display a list....” 4. Press the “Have disk...” button.
5. Insert the CD into the CD-ROM drive. Type in the path D:\Biscuit\9577\VGA\Win9x_Me Then press “OK” 9577 6. Select the highlighted item, then click “OK.
7. "S3 Graphics Twister"appears under the adapter tab. Click the "Apply" button. 8. Press “Yes” to reboot.
5.2.3 Installation for Windows NT Note: 1. Service Pack X (X = 3, 4, 5, 6,...) must be installed first, before you install the Windows NT VGA driver. Select "Start", "Settings", "Control Panel" and double click the "Display" icon.
2. Choose the "Settings" tab, and press the "Display Type" button.
3. Press the "Change..." button.
4. Click the "Have Disk..." button. 5. Type the path: D:\Biscuit\VGA\WinNT Press the "OK" button.
6. Select the highlighted item, and click the "OK" button. 7. Press "Yes" to proceed. 8. Press "OK" to reboot.
5.2.4 Installation for Windows 2000 1. Select "System", "Settings", "Control Panel" and double click the "system" icon.
2. Choose the "Video Controller (VGA Compatible)” button.
3. Choose the "Drive" button, press “Update Driver...” button.
4. Choose "Display a list of..." , then press “Next” button. 5. Choose “Display adapters”, press “Next” button.
6. Click the “Have Disk” button. 7. Type the path D:\Biscuit\9577\VGA\Win2000 press the “OK” button.
8. Press “Finish" to reboot. 5.2.5 Installation for Windows XP 1. Select "System", "Settings", "Control Panel" and double click the "system" icon.
2. Choose “Hardware” and “Device Manager”, press “OK” button.
3. Choose “Video Controller (VGA Compatible), press “OK” button.
4. Choose "Driver”, “Update Driver”, press “OK” button. 5. Choose “Install from a list.....” , press “Next”.
6. Choose “Don’t search. I will....”, press “Next” button. 7. Choose “Display adapters”, press “Next” button.
8. Type the path D:\Biscuit\9577\VGA\WinXP then press “OK” button. 9577 9. Choose “S3 Graphics Twister + S3 Hotkey” then press “Next” button.
10. Press “Finish" to reboot. 5.3 Further Information For further information about the AGP/VGA installation in your PCM9577, including driver updates, troubleshooting guides and FAQ lists, visit the following web resources: VIA website: www.via.com.tw Advantech websites: www.advantech.com www.advantech.com.
CHAPTER 7 PCI Bus Ethernet Interface This chapter provides information on Ethernet configuration.
Chapter 7 PCI Bus Ethernet Interface 7.1 Introduction The board is equipped with a high performance 32-bit Ethernet chipset which is fully compliant with 802.3u 100BASE-T \Fast Ethernet CSMA/ CD standards (F version) and compliant IEEE 802.3z/ab 1000BAS-T Gigabit Ethernet(FG version). It is supported by major network operating systems. It is also both 100Base-T and 10Base-T compatible. The Ethernet port provides a standard RJ-45 jack.
7.2.2 Installation for Windows 98 1. a. Select "Start", "Settings". "Control Panel". b. Double click "Network". 2. a. Click "Add" and prepare to install network functions.
3. a. Select the "Adapter" item to add the Ethernet card. 4. a. Click "Have Disk" to install the driver. 5. a. Insert the CD into the D: drive b. Fill in "D:\Biscuit\9577\LAN\” c.
6. a. Choose the " Intel 8255x based PCI Ethernet Adapter (10/100)" b. Click "OK". 7. a. Make sure the configurations of relative items are set correctly. b. Click "OK" to reboot.
7.2.3 Installation for Windows 2000 1.
2.
3. 4.
5. 6.
7. 8.
9. 7.2.4 Installation for Windows NT 1. a. Select "Start", "Settings", "Control Panel" b.
2. a. Choose type of network. b. Click "Next" 3. a. Click "Select from list...
4. Click “Have Disk.” 5. a. Insert the Utility CD ROM b. Fill in the correct path: D:\Biscuit\9577\LAN\82559er\winnt4 c. Click "OK".
6. Check the highlighted item, and click “OK.
7. Click “Next” to continue setup. 8.
9. Select the correct Network Services then click "Next" 10. Click “Next” to continue setup.
11. Click “Next” to start the network. 7.3 Further information Realtek website: www.realtek.com.tw Intel website: www.intel.com Advantech websites: www.advantech.com www.advantech.com.
Appendix A Programming the Watchdog Timer The board is equipped with a watchdog timer that resets the CPU or generates an interrupt if processing comes to a standstill for any reason. This feature ensures system reliability in industrial standalone or unmanned environments.
Appendix A Programming the Watchdog Timer A.1 Supported Input Timing Modes In order to program the watchdog timer, you must write a program which writes I/O port address 443 (hex). The output data is a value of time interval. The value range is from 01 (hex) to 3E (hex), and the related time interval is 1 sec. to 62 sec. Data 01 02 03 04 3E Time Interval 1 sec. 2 sec. 3 sec. 4 sec. . . . 62 sec.
The following example shows how you might program the watchdog timer in BASIC: 10 20 30 40 50 60 70 80 1000 1070 2000 2090 REM Watchdog timer example program OUT &H443, data REM Start and restart the watchdog GOSUB 1000 REM Your application task #1 OUT &H443, data REM Reset the timer GOSUB 2000 REM Your application task #2 OUT &H443, data REM Reset the timer X=INP (&H443) REM Disable the watchdog timer END REM Subroutine #1, your application task . . . RETURN REM Subroutine #2, your application task . .
Appendix C Pin Assignments This appendix contains information of a detailed or specialized nature.
Appendix C Pin Assignments C.1 ATX power feature connector (CN20) Table C.
C.2 Parallel Port Connector (CN4) Table C.2: Parallel Port Connector (CN4) Pin Signal 1 STB 3 D0 5 D1 7 D2 9 D3 11 D4 13 D5 15 D6 17 D7 19 ACK* 21 BUSY 23 PE 25 SLCT * low active Pin Signal 2 4 6 8 10 12 14 16 18 20 22 24 26 AFD* ERR INIT* SLIN* GND GND GND GND GND GND GND GND NC 111 Appx.
C.3 Floppy Disk Drive Connector (CN3) Table C.
C.4 IDE Hard Drive Connector (CN1) Table C.4: IDE HDD connector (CN1) Pin Signal Pin Signal 1 3 5 7 9 11 13 15 17 19 21 23 25 27 IDE RESET D7 D6 D5 D4 D3 D2 D1 D0 GND REQ IOW IOR READY 2 4 6 8 10 12 14 16 18 20 22 24 26 28 29 31 33 35 37 39 DACK IRQ14 A1 A0 CS0 Active LED 30 32 34 36 38 40 GND D8 D9 D10 D11 D12 D13 D14 D15 NC GND GND GND Cable Select (Pull-Low) GND NC Cable check A2 CS1 GND 113 Appx.
C.5 Secondary IDE connector (CN2) Table C.
C.6 CompactFlash card connector (CN5) Table C.6: CompactFlash Card Connetor(CN5) Pin Signal Pin Signal 1 2 3 4 5 6 7 8 GND D3 D4 D5 D6 D7 #CE A10 26 27 28 29 30 31 32 33 #CD1 D11 D12 D13 D14 D15 #CE2 #VS14 9 #OE 34 #IORD 10 A9 35 #IOWR 11 A8 36 #WE 12 A7 37 #IRQ 13 Vcc 38 Vcc 14 A6 39 #CSEL 15 16 17 18 19 20 21 22 23 24 25 A5 A4 A3 A2 A1 A0 D0 D1 D2 IOCS16 #CD2 40 41 42 43 44 45 46 47 48 49 50 #VS2 RESET #WAIT #INPACK #REG BVD2 BVD1 D8 D9 D10 GND 115 Appx.
C.7 CRT Display Connector (CN7) 15 13 3 1 16 14 4 2 Table C.7: CRT Display Connector(CN7) Pin Signal Pin Signal 1 RED 8 GND 2 GREEN 9 CRT Vcc 3 BLUE 10 GND 4 NC 11 NC 5 GND 12 DDCDATA 6 GND 13 HSYNC 7 GND 14 VSYNC C.8 USB Connector (CN6) Table C.
C.9 LAN, RJ45 connector (CN8) Table C.9: LAN, RJ45 Connector(CN8) Pin Signal 1 2 3 4 TX+ TXRX+ RX- C.10 Main Power Connector (CN15) Table C.10: Main Power Connector(CN15) Pin Signal 1 2 3 4 5 6 7 +5V input GND GND +12V input NC GND +5V input 117 Appx.
C.11 ATX power LED and KB-Lock connector (CN16) Table C.11: ATX Power LED and KB-Lock Connector(CN16) Pin Signal 1 2 3 4 5 Power LED+ NC Power LEDKB_LOCK+ KB_LOCK-(GND) C.12 Speaker out (CN17) Table C.
C.13 Watchdog output connector (CN18) Table C.13: Watchdog Output Connector(CN18) Pin Signal 1 2 WDT_OUT GND C.14 HDD LED (CN19) Table C.14: HDD LED(CN19) Pin Signal 1 2 HDD LED+ HDD LED- 119 Appx.
C.15 Power button (CN21) Table C.
C.16 Flat Panel Connector (CN22) Table C.16: Flat Panel Connector(CN22) Pin Signal Pin Signal 1 +5V output 2 +5V output 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 39 GND +3.
C.17 Extension flat panel connector (CN23) Table C.
C.18 LVDS LCD connector (CN25) Table C.18: LVDS LCD Connector(CN25) Pin Signal Pin Signal 1 GND 2 GND 3 5 7 9 11 13 15 17 19 YP0 YM0 YP1 ZM1 YP2 ZM2 YCP YCM 3V_SAFE 4 6 8 10 12 14 16 18 20 ZP0 ZM0 ZP1 ZM1 ZP2 ZM2 ZCP ZCM 3V_SAFE C.19 COM Connector (CN9, CN10, CN29) Table C.
C.20 COM2 Extension connector RS422-RS485(CN29) Table C.20: COM2 Extension Connector RS422-RS485(CN29) Pin Description Pin Description 1 TXD- 2 TXD+ 3 RXD- 4 RXD+ C.21 LCD Inverter Backlight Connector (CN24) Table C.21: LCD Inverter Backlight Connector(CN24) Pin Signal 1 2 3 4 +12V output GND Back-light enable signal output NC C.22 ATX soft power switch connector (CN15) Table C.
C.23 Keyboard and PS/2 Mouse Connector (CN11) Table C.23: Keyboard and mouse connector (CN11) Pin Signal 1 2 3 4 5 6 7 8 KB data Mouse DATA Ground +5V KB ClOCK MS ClOCK NC NC C.24 CPU Fan Power Connector (CN14) Table C.24: FAN connector (CN14) Pin Signal 1 2 3 GND +12V Fan speed detect signal input 125 Appx.
C.25 External KB/Mouse connector (CN12) Table C.25: External KB/Mouse Connector(CN12) Pin Signal 1 2 3 4 5 Keyboard Clock Keyborad Data NC GND +5V C.26 I/O daughter board connector1 (CN27) Table C.
C.27 I/O daughter board connector1 (CN28) Table C.27: I/O Daughter Board Connector1 (CN28) Pin Signal Pin Signal 1 NC 2 NC 3 5 7 9 11 13 15 17 19 NC NC NC NC NC LAN2 TD+ LAN2 RD+ 3V3B MSCLK 4 6 8 10 12 14 16 18 20 NC NC NC NC NC GND LAN2 TDLAN2 RDVcc 127 Appx.
Appendix D System Assignments This appendix contains information of a detailed nature. It includes: • • • • System I/O ports 1st MB memory map DMA channel assignments Interrupt assignments 119 Appx.
Appendix D System Assignments D.1 System I/O Ports Table D.1: System I/O ports Addr.
D.2 1st MB memory map Table D.2: 1st MB memory map Addr. range (Hex) Device F0000h - FFFFFh *CC000h - EFFFFh C0000h - CBFFFh B8000h - BFFFFh B0000h - B7FFFh A0000h - AFFFFh 00000h - 9FFFFh System ROM Unused (reserved for Ethernet ROM) Expansion ROM (for VGA BIOS) CGA/EGA/VGA text Unused EGA/VGA graphics Base memory * If Ethernet boot ROM is disabled (Ethernet ROM occupies about 16 KB) * E0000 - EFFFF is reserved for BIOS POST D.3 DMA channel assignments Table D.
D.4 Interrupt assignments Table D.
