PCA-6774 ISA Socket370 Slot PC, VGA/LCD/LVDS/LAN/CFC with optional second LAN and Gigabit LAN User Manual i
Copyright This document is copyrighted, © 2005. 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 • Mini Jumper p/n: 1653300100 If any of these items are missing o
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.
This device complies with the requirements in part 15 of the FCC rules: Operation is subject to the following two conditions: 1.This device may not cause harmful interference, and 2.This device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
PCA-6774 User Manual vi
Contents Chapter 1 Introduction ......................................................2 1.1 1.2 1.3 Introduction ....................................................................... 2 Features ............................................................................. 2 Specifications .................................................................... 3 1.3.1 1.3.2 1.3.3 1.3.4 1.3.5 1.4 Standard SBC Functions................................................. 3 VGA/LCD Interface ....................
2.14.1 Connecting the hard drive............................................. 18 2.15 VGA/LCD interface connections .................................... 19 2.15.1 2.15.2 2.15.3 2.15.4 2.15.5 2.16 2.17 CRT display connector (CN7) ...................................... 19 Flat panel display connector (CN22) ............................ 19 Extension flat panel connector (CN23) ........................ 19 LVDS LCD panel connector (CN25) ........................... 19 Panel type selection (SW1)..............
4.2.7 4.2.8 4.2.9 4.2.10 4.2.11 4.2.12 4.2.13 Chapter 5 PCI SVGA Setup ............................................42 5.1 Introduction ..................................................................... 42 5.1.1 5.1.2 5.1.3 5.2 5.3 Chipset .......................................................................... 42 Display memory............................................................ 42 Display types.................................................................
B.5 CompactFlash Socket (CN5)........................................... 96 B.6 USB Connector (CN6) .................................................... 97 B.7 D-SUB VGA Connector (CN7) ...................................... 98 B.8 LAN RJ45 Connector (CN8)........................................... 98 B.9 COM Port 1, 2 Connector (CN9, CN10)......................... 99 B.10 PS/2 Keyboard & Mouse Connector (CN11).................. 99 B.11 External Keyboard Connector (CN12)........................
Appendix C System Assignments .....................................112 C.1 System I/O Ports............................................................ 112 C.2 1st MB memory map..................................................... 113 C.3 DMA channel assignments............................................ 114 C.4 Interrupt assignments .................................................... 115 Table C.1:System I/O ports ........................................ 112 Table C.2:1st MB memory map ..........
PCA-6774 User Manual xii
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 Socket 370 half-sized CPU card that will support up to 1.26GHz Pentium III with 512KB 2nd cache using VIA VT8606 "Twister T" 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.
1.3 Specifications 1.3.1 Standard SBC Functions • CPU: Supports Socket 370 for Intel processors up to Pentium III 1.26 GHz with 512KB cache (Tualatin) • System chipsets: VIA VT8606 "Twister T" + VT82C686B • BIOS: Award 256 KB Flash memory • System memory: One DIMM socket accepts 64 MB up to 512 MB SDRAM • 2nd cache memory: 128/256/512KB on Celeron/PentiumIII processor • Enhanced IDE interface: One channel supports up to two EIDE devices. Supports ATA-100, ATA-33 and PIO modes.
LCD/Simultaneous Mode: 1280 x 1024@16bpp (60Hz), 1024 x 768@16bpp (60Hz), 1280 x 1024@32bpp LVDS interface: Supports 2-Channel (2 x 18-bit) LVDS interface 1.3.3 Solid State disk • Supports CompactFlash Type I/II disks 1.3.4 PCI bus Ethernet interface • Chipset: Intel 82551/82559/82540 • Ethernet interface: IEEE 802.3u compatible 10/100Base-T interface. Supports selectable LAN (1 x 10/100base-T LAN or 2 x 10/100base-T LAN or 1x Gigabit LAN) • I/O address switchless setting 1.3.
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 Onboard 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: Connectors (solder side) 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.
open closed closed 2-3 The jumper settings are schematically depicted in this manual as follows: open closed closed 2-3 A pair of needle-nose pliers may be helpful when working with jumpers. If you have any doubts about the best hardware configuration for your application, contact your local distributor or sales representative before you make any changes. Generally, you simply need a standard cable to make most connections.
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 (CN20) and soft-on power button 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.
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. Look for a number printed on the circuit board indicating pin number one. In addition, the connector on the floppy drive may have a slot.
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. 2.15 VGA/LCD interface connections The PCA-6774’s display interface can drive conventional CRT displays and is capable of driving a wide range of flat panel displays as well, including passive LCD and active LCD displays.
2.15.5 Panel type selection (SW1) SW1 is an 8 segment DIP switch for DSTN/TFT panel type and resolution functions Table 2.6: S1 Panel Type Select (SW1) SW 1-1 SW 1-2 SW 1-3 SW 1-4 Panel Type & Resolution ON ON ON ON TFT 640x480** 18bit (H. V. Freq) ON ON ON OFF TFT 640x480 18bit (Synthetic) ON ON OFF ON TFT 640x480** N/A ON ON OFF OFF TFT 640x480** LVDS ON OFF ON ON DSTN 640x480** 18bit ON OFF ON OFF TFT 800x600** 18bit (H. V.
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. The adapter cable has a 5 x 2-pin connector on one end and a USB connector on the other. The USB interfaces can be disabled in the system BIOS setup. 2.
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. These features are optional: install them only if you need them. CN16, CN17, CN19 integrated in one connector, which is an 5 x 3 pin header, 180degree, male. It provides connections for a speaker, hard disk access indicator. 2.19.1 HDD LED (CN19) The HDD LED indicator for hard disk access is an active low signal (24mA sink rate). 2.19.
2.23 Watchdog output (CN18) It provides connection for watchdog output, detailed pin assignment refer to Appendix B. 2.24 Daughter card connector (CN27,CN28) CN27, CN28 are 20-pin 180degree female connectors.With daughter board, PCA-6774 can support 2 LAN and 4 USB ports. Detailed pin definition you will find in Appendix B.
PCA-6774 User Manual 24
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 if you want to save BIOS? If you change your mind or have made a mistake, press N to abort and end the setup procedure.
PCA-6774 User Manual 28
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 VT8606 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 VIA VT8606 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 PCA6774, 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 6 PCI Bus Ethernet Interface This chapter provides information on Ethernet configuration.
Chapter 6 PCI Bus Ethernet Interface 6.1 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.
6.2.2 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.
6.2.3 Installation for Windows 2000 1.
2. Click “Update Driver...
3. Click “Next” 4.
5. Select the driver, and click “Next” 6.
7. Click “Next” 8.
9. Click “Yes” to reboot 6.2.4 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. 6.3 Further information Realtek website: www.realtek.com.tw Intel website: www.intel.com Advantech websites: www.advantech.com www.advantech.com.
PCA-6774 User Manual 86
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 . .
PCA-6774 User Manual 90
Appendix B Pin Assignments This appendix contains information of a detailed or specialized nature.
Appendix B Pin Assignments B.1 Primary IDE Connector (CN1) Table B.
B.2 Secondary IDE Connector (CN2) 43 41 3 1 44 42 4 2 Table B.
B.3 Floppy Connector (CN3) Table B.
B.4 Printer Port Connector (CN4) Table B.
B.5 CompactFlash Socket (CN5) Table B.
B.6 USB Connector (CN6) 5 4 3 2 1 10 9 8 7 6 Table B.
B.7 D-SUB VGA Connector (CN7) 5 1 10 6 15 11 Table B.7: D-SUB VGA 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 15 DDCCLOCK B.8 LAN RJ45 Connector (CN8) 1 8 Table B.
B.9 COM Port 1, 2 Connector (CN9, CN10) 2 4 5 6 8 10 9 8 7 4 3 2 1 6 1 3 5 7 9 Table B.9: COM Port 1 Connector (CN9, CN10) COM1 connector (CN9) Pin Signal Pin COM2 connector (CN10) RS232 Only Signal Pin Signal Pin Signal 1 DCD 6 DSR 1 DCD 2 DSR 2 RX 7 RTS 3 RX 4 RTS 3 TX 8 CTS 5 TX 6 CTS 4 DTR 9 RI 7 DTR 8 RI 9 GND 10 N.C. 5 GND B.10 PS/2 Keyboard & Mouse Connector (CN11) Table B.
B.11 External Keyboard Connector (CN12) 5 4 3 2 1 Table B.11: External Keyboard Connector (CN12) Pin Signal 1 Keyboard Clock 2 Keyboard Data 3 NC 4 GND 5 +5V B.12 CPU Fan Connector (CN14) 3 2 1 Table B.
B.13 EBX Power Connector (CN15) Table B.
B.14 Power LED & Keyboard Lock (CN16) Table B.14: Power LED & Keyboard Lock (CN16) Pin Signal 1 Power LED+ 2 NC 3 Power LED- 4 KB_LOCK+ 5 KB_LOCK-(GND) B.15 External Speaker (CN17) Table B.
B.16 Reset Connector (CN18) Table B.16: Reset Connector (CN18) Pin Signal 1 Reset signal 2 GND B.17 HDD LED Connector (CN19) Table B.
B.18 ATX Feature Connector (CN20) 3 2 1 Table B.18: ATX Feature Connector (CN20) Pin Signal 1 ATX PS_ON signal output 2 Vcc 3 Suspend 5V input B.19 ATX Soft-on Power Button Connector (CN21) Table B.
B.20 LCD 40-Pin Connector (CN22) Table B.20: LCD 40-Pin Connector (CN22) Pin Signal Pin Signal 1 +5V output 2 +5V output 3 GND 4 GND 5 +3.3V output 6 +3.
B.21 LCD 20-Pin Connector (CN23) 19 17 3 1 20 18 4 2 Table B.21: LCD 20-Pin Connector (CN23) Pin Signal Pin Signal 1 GND 2 GND 3 PD24 4 PD25 5 PD26 6 PD27 7 PD28 8 PD29 9 PD30 10 PD31 11 PD32 12 PD33 13 PD34 14 PD35 15 GND 16 GND 17 NC 18 NC 19 NC 20 NC B.22 LCD Backlight Connector (CN24) 1 2 3 4 Table B.
B.23 LVDS Connector (CN25) 19 17 3 1 20 18 4 2 Table B.
B.24 I/O Daughter Board Connector 1 (CN27) 19 17 3 1 20 18 4 2 Table B.
B.25 I/O Daughter Board Connector 2 (CN28) 19 17 3 1 20 18 4 2 Table B.25: I/O Daughter Board Connector 2 (CN28) Pin Signal Pin Signal 1 NC 2 NC 3 NC 4 NC 5 NC 6 NC 7 NC 8 NC 9 NC 10 NC 11 NC 12 NC 13 LAN2 TD+ 14 GND 15 LAN2 RD+ 16 LAN2 TD- 17 3V3B 18 LAN2 RD- 19 MSCLK 20 Vcc B.26 RS485/422 Connector (CN29) 2 4 1 3 Table B.
PCA-6774 User Manual 110
Appendix C 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 111 Appx.
Appendix C System Assignments C.1 System I/O Ports Table C.1: System I/O ports Addr.
Table C.1: System I/O ports Addr. range (Hex) Device 778-77A Parallel Port (ECP Extensions) (Port 378+400) MPU-401 select from 300 ~ 330H (2 bytes) C.2 1st MB memory map Table C.2: 1st MB memory map Addr.
C.3 DMA channel assignments Table C.
C.4 Interrupt assignments Table C.
PCA-6774 User Manual 116