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 22

 

3.18 Digital I/O 

 

One characteristic of digital circuit is its fast response to high or low signal.  

This kind of response is highly needed for harsh and critical industrial 

operating environment.  That’s why we design 4-bit digital inputs and 4-bit 

digital outputs on NOVA-7820. 

 

Digital Input and Output, generally, are control signals.  You can use these 

signals to control external devices that needs On/Off circuit or TTL devices.  

We provide "BIOS Call" for DIO reading. 

 

READ WRITE 

Bit0 DIN0 Bit0 DO0 
Bit1 DIN1 Bit1 DO1 
Bit2 DIN2 Bit2 DO2 
Bit3 DIN3 Bit3 DO3 

 

• 

CN45: Digital I/O 

 

PIN Description  PIN  Description 

1 GROUND 

2 VCC5V 

3 DO3 

4 DO2 

5 DO1 

6 DO0 

7 DIN3 

8 DIN2 

9 DIN1 

10 DIN0 

 

Summary of Contents for NOVA-7820

Page 1: ...NOVA 7820 VIA C3 Processor CPU Embedded Board with 10 100Mbps Ethernet VGA Audio Version 1 0 Manual Version 1 1 Jul 16 2003 Copyright 2003 by ICP Electronics Inc All Rights Reserved ...

Page 2: ...ts are reserved No part of this manual may be reproduced by any mechanical electronic or other means in any form without prior written permission of the manufacturer Trademarks NOVA 7820 is registered trademarks of ICP Electronics Inc IBM PC is a registered trademark of International Business Machines Corporation Intel is a registered trademark of Intel Corporation Award is registered trademarks o...

Page 3: ...Interface Port 17 3 10 Fan Connector 17 3 11 Audio Connectors 18 3 12 VGA Connector 18 3 13 LAN RJ45 Connector 19 3 14 Compact Flash Connector TYPE II 19 3 15 External Switches and Indicators 20 3 16 IEEE 1394 Connector 20 3 17 CardBus PCMCIA Connector 21 3 18 Digital I O 22 3 19 LCD Panel Connector 23 4 AMI BIOS Setup 24 4 1 Introduction 24 4 2 Starting Setup 24 4 3 Setup Summary 24 4 4 Standard ...

Page 4: ...4 Appendix E How to Use Video in Function 45 Appendix F How to Use LCD TYPE Function 47 ...

Page 5: ...plication NOVA 7820 provides many function such as 1394 5 1 channel Audio and video in 1 1 Specifications CPU VIA C3 Processor CPU DMA channels 7 Interrupt levels 15 Chipset Intel 815E Memory One 168 pin DIMM sockets The memory capability is up to 512MB 133MHz Ultra ATA 33 66 100 IDE Interface One PCI Enhanced IDE channels 2 IDE devices The south bridge ICH2 supports Ultra ATA 33 66 100 IDE interf...

Page 6: ...ions to implement a two port node in a cable based IEEE 1394 Provides two P1394a fully compliant cable ports at 100 200 400 megabits per second Mbits s CardBus Compliant with CardBus PCMCIA PC Card 95 97 standard specification Power Consumption 5V 3 0A and 12V 0 22A as running by VIA Eden ESP 4000 400MHz and 256MB SDRAM Operating Temperature 0 60 CPU needs heatsink 1 2 Package Contents In addition...

Page 7: ...7 2 Installation Follow the instructions of installing NOVA 7820 Read the unpacking information carefully before installation 2 1 NOVA 7820 Layout ...

Page 8: ...8 ...

Page 9: ...1 Description 1 2 Keep CMOS Setup Normal Operation 2 3 Clear CMOS Setup 2 3 Compact Flash Setting Set the operating mode of Compact Flash disk This is similar to the operation of hard disk JP2 Compact Flash Setting JP2 Description OPEN Slave Close Master 2 4 Audio Amplifier Select This jumper is for the setting of Audio Amplifier JP5 Audio L_Line out select JP5 Description 1 2 OFF 2 3 ON JP6 Audio...

Page 10: ...g COM3 4 RI and Voltage JP8 Set pin 9 of COM3 as signal RI or voltage source JP8 Description 10 12 COM3 RI Pin Use RI 8 10 COM3 RI Pin Use Voltage JP8 Set pin 9 of COM4 as signal RI or voltage source JP8 Description 9 11 COM4 RI Pin Use RI 7 9 COM4 RI Pin Use Voltage JP8 Set pin 9 of COM3 as 5V or 12V JP8 Description 2 4 COM3 RI Pin Use Voltage 5V 4 6 COM3 RI Pin Use Voltage 12V JP8 Set pin 9 of C...

Page 11: ...11 2 7 COM4 RS232 RS422 485 Selection JP9 Selection COM4 is RS232 RS422 485 JP9 Description 1 2 RS232 2 3 RS422 485 JP10 Selection COM4 is RS422 RS485 Description JP10 1 3 2 4 RS422 OFF OFF RS485 ON ON ...

Page 12: ...X Power On Off Button Connector CN16 DIN Connector for Keyboard Mouse CN20 External Switch and Indicators CN21 36 IEEE 1394 Connector CN24 FDD Connector CN26 ATX Power Connector CN30 Power Connector CN32 Audio Connector CN33 4 Channels of composite video in Connector CN35 USB Connector CN37 LAN Connector CN43 Compact Flash CN44 CardBus PCMCIA Connector CN45 Digital I O CN47 LCD Connector CN48 49 S...

Page 13: ...ELECT B 13 GROUND 14 DRIVE SELECT A 15 GROUND 16 MOTOR ENABLE B 17 GROUND 18 DIRECTION 19 GROUND 20 STEP 21 GROUND 22 WRITE DATA 23 GROUND 24 WRITE GATE 25 GROUND 26 TRACK 0 27 GROUND 28 WRITE PROTECT 29 N C 30 READ DATA 31 GROUND 32 SIDE 1 SELECT 33 N C 34 DISK CHANGE 3 2 Video in Connector NOVA 7820 is equipped witch 4 channels of composite video connector BT878A CN33 Capture IN PIN Description ...

Page 14: ...UND 29 DACK 30 GROUND 31 INTERRUPT 32 GROUND 33 SA1 34 P66DET 35 SA0 36 N C 37 HDC CS0 38 HDC CS1 39 HDD ACTIVE 40 GROUND 3 4 Parallel Port This port is usually connected to a printer NOVA 7820 includes an on board parallel port and accessed through a 26 pin flat cable connector CN1 Three modes SPP EPP and ECP are supported CN1 Parallel Port Connector PIN Description PIN Description 1 STROBE 14 AU...

Page 15: ... byte FIFO in each serial port CN8 D_SUB 9 PIN Connector PIN Description 1 DATA CARRIER DETECT DCD 2 RECEIVE DATA RXD 3 TRANSMIT DATA TXD 4 DATA TERMINAL READY DTR 5 GROUND 6 DATA SET READY DSR 7 REQUEST TO SEND RTS 8 CLEAR TO SEND CTS 9 RING INDICATOR RI CN11 10 pin Connector PIN Description 1 DATA CARRIER DETECT DCD 2 RECEIVE DATA RXD 3 TRANSMIT DATA TXD 4 DATA TERMINAL READY DTR 5 GROUND 6 DATA...

Page 16: ...1 DATA CARRIER DETECT DCD 2 RECEIVE DATA RXD 3 TRANSMIT DATA TXD 4 DATA TERMINAL READY DTR 5 GROUND 6 DATA SET READY DSR 7 REQUEST TO SEND RTS 8 CLEAR TO SEND CTS 9 RING INDICATOR RI 10 N C 11 TX RS422 485 12 TX RS422 485 13 RX RS422 485 14 RX RS422 485 3 7 Power Connector NOVA 7820 has one power connector for power supply CN30 Power Supply Connector PIN Description 1 VCC12V 2 GROUND 3 GROUND 4 VC...

Page 17: ...supports Serial Infrared SIR or Amplitude Shift Keyed IR ASKIR interface To use the IrDA port set SIR or ASKIR model in COM 2 of BIOS Peripheral Setup Then the normal RS 232 COM 2 will be disabled IR1 IrDA Connector PIN Description 1 VCC5V 2 N C 3 IR RX 4 GROUND 5 IR TX 3 10 Fan Connector NOVA 7820 provides CPU cooling fan connector and system fan connector CPU connectors can supply 12V 500mA The ...

Page 18: ...GROUND 3 LINEOUT_R 4 GROUND 5 CENTER 6 BASS 7 GROUND 8 GROUND 9 LININ_L 10 LINEIN_R 11 GROUND 12 GROUND 13 REAR_L 14 REAR_R 15 MIN_IN 16 GROUND CDIN1 CD IN PIN Description 1 CD LEFT SIGNAL 2 GROUND 3 GROUND 4 CD RIGHT SIGNAL 3 12 VGA Connector NOVA 7820 has a built in 15 pin VGA connector directly to your CRT monitor CON1 15 pin Female Connector PIN Description PIN Description 1 RED 2 GREEN 3 BLUE...

Page 19: ... Flash socket that be provided from IDE2 You must set the jumper to avoid the conflict CN43 Compact Flash Socket PIN Description PIN Description 1 GROUND 26 VCC IN CHECK2 2 DATA3 27 DATA11 3 DATA4 28 DATA12 4 DATA5 29 DATA13 5 DATA6 30 DATA14 6 DATA7 31 DATA15 7 HDC_CS0 32 HDC_CS1 8 N C 33 N C 9 GROUND 34 IOR 10 N C 35 IOW 11 N C 36 N C 12 N C 37 INTERRUPT 13 5V 38 5V 14 N C 39 CSEL 15 N C 40 N C ...

Page 20: ...tion PIN Description 1 POWER LED 2 SPEAKER 3 N C 4 N C 5 POWER LED 6 N C 7 KEYLOCK 8 SPEAKER 5V 9 KEYLOCK 10 RESET SW 11 GROUND 12 RESET SW GND 13 HDD LED 14 HDD LED 3 16 IEEE 1394 Connector NOVA 7820 is equipped witch IEEE1394 controller TI TSB43AA22 You can connect it to your 1394 device through CN21 36 connectors The pin assignments are as follows CN21 1394 Connector PIN Description PIN Descrip...

Page 21: ...A8 13 A13 14 A14 15 WE 16 READY 17 VCC 18 VCC 19 A16 20 A15 21 A12 22 A7 23 A6 24 A5 25 A4 26 A3 27 A2 28 A1 29 A0 30 D0 31 D1 32 D2 33 WP 34 GROUND 35 GROUND 36 CD1 37 D11 38 D12 39 D13 40 D14 41 D15 42 CE2 43 VS1 44 IORD 45 IOWR 46 A17 47 A18 48 A19 49 A20 50 A21 51 VCC 52 VCC 53 A22 54 A23 55 A24 56 A25 57 VS2 58 RESET 59 WAIT 60 INPACK 61 REG 62 BVD2 63 BVD1 64 D8 65 D9 66 D10 67 CD2 68 GROUND...

Page 22: ...uts and 4 bit digital outputs on NOVA 7820 Digital Input and Output generally are control signals You can use these signals to control external devices that needs On Off circuit or TTL devices We provide BIOS Call for DIO reading READ WRITE Bit0 DIN0 Bit0 DO0 Bit1 DIN1 Bit1 DO1 Bit2 DIN2 Bit2 DO2 Bit3 DIN3 Bit3 DO3 CN45 Digital I O PIN Description PIN Description 1 GROUND 2 VCC5V 3 DO3 4 DO2 5 DO1...

Page 23: ... is for reference only The LCD panel connector of NOVA 7820 may support more panel types CN47 LCD Panel Connector for SP1015 PIN Description PIN Description 1 N C 2 RB2 3 BB2 4 RB3 5 BB3 6 RB4 7 BB4 8 RB5 9 BB5 10 RB6 11 BB6 12 RB7 13 BB7 14 RA5 15 RA7 16 RA6 17 GB2 18 RA4 19 GB3 20 RA2 21 RA3 22 GA6 23 GA5 24 GA4 25 GA7 26 GA3 27 BA7 28 GA2 29 Panel VCC 30 Panel VCC 31 GB4 32 GB5 33 BA4 34 BA6 35...

Page 24: ...etup to change time date hard disk type etc Advanced CMOS Setup Advanced CMOS Setup to configure system options Advanced Chipset Setup Advanced Chipset Setup to configure chipset features Power Management Setup Power Management Setup to configure power management features PCI Plug and Play Setup Configures PCI Plug and Play features Peripheral Setup Configures peripheral features Hardware Monitor ...

Page 25: ...served NOVA 7820 V1 0 02 11 2003 Standard CMOS Setup Advanced CMOS Setup Advanced Chipset Setup Power Management Setup PCI Plug and Play Setup Peripheral Setup Hardware Monitor Setup Auto Detect Hard Disks Change User Password Change Supervisor Password Auto Configuration with Optimal Settings Auto Configuration with Fail Safe Settings Save Settings and Exit Exit Without Saving Standard CMOS Setup...

Page 26: ...s and select the floppy type Primary Secondary Master Slave LBA Mode LBA Logical Block Addressing is a new IDE HDD access method to develop to overcome the 528 megabyte capacity bottleneck If your IDE hard disk capacity is greater than 528MB AMIBIOS can enable this LBA mode feature The option is only for Primary Master IDE LBA mode Primary Secondary Master Slave Block Mode If your hard disk drive ...

Page 27: ...gatrends Inc All Rights Reserved Quick Boot Enabled 1st Boot Device Disabled 2nt Boot Device Disabled 3rd Boot Device Disabled Try Other Boot Devices Yes LAN Boot ROM Disabled Floppy Access Control Read Write Hard Disk Access Control Read Write S M A R T for Hard Disks Disabled BootUP Num Lock On Floppy Drive Seek Disabled PS 2 Mouse Support Enabled System Keyboard Present Primary Display VGA EGA ...

Page 28: ...oot Device 4th Boot Device options The settings are Yes or No Floppy Access Control This option specifies the read write access that is set when booting from a floppy drive Hard Disk Access Control This option specifies the read write access that is set when booting from a hard disk drive S M A R T for Hard Disks Self Monitoring Analysis and Reporting Technology This option can help the BIOS to wa...

Page 29: ...options include Disable WriteThru WriteBack the secondary cache memory System BIOS Cacheable When this option is set to Enabled the System ROM area from F0000 FFFFF is copied shadowed to the RAM for faster execution C000 16k Shadow When this option is set to Enabled the Video ROM area from C0000 C3FFF is copied shadowed to the RAM for faster execution Disabled The contents of the video ROM are not...

Page 30: ...d Disabled and Cached The ROM area that is not used by ISA adapter cards will be allocated to PCI adapter cards D400 16k Shadow These options enable shadowing of the contents of the ROM area named in the option title The settings are Enable Disable Cached The ROM area that is not used by ISA adapter cards will be allocated to PCI adapter cards D800 16k Shadow These options enable shadowing of the ...

Page 31: ...B SDRAM Timing by SPD This sets the optimal timings for items DRAM Refresh DRAM Cycle time CAS Latency RAS to CAS delay and SDRAM RAS Precharge depending on the memory modules that you are using DRAM Cycle time SCLKs This feature controls the number of SDRAM clocks used for SDRAM parameters Tras and Trc Tras specifies the minimum clocks required between active command and precharge command Trc spe...

Page 32: ...nction Select Enabled if your system contains a Universal Serial Bus USB controller and you have USB peripherals USB Device Legacy Support This motherboard support Universal Serial Bus USB devices If detected USB controller legacy mode will be enabled If not detected USB controller legacy mode will be disabled ...

Page 33: ...abled Resume By Alarm Disabled Alarm Date 15 Alarm Hour 12 Alarm Minute 30 Alarm Second 30 Power Type Select AT Available Options No Yes ESC Exit Sel PgUp PgDn Modify F1 Help F2 F3 Color Figure 5 Power Management Setup ACPI Aware O S This feature is switch of ACPI function Sleep State This feature is switch of STR S3 or POS S1 function USB KB MS wakeup From S3 This option set to Enabled using USB ...

Page 34: ... inactivating for entering Auto_mode SMI_mode and activating for entering Normal_mode Primary Slave IDE Enabling the option allows the IRQ input to be monitored for both inactivating for entering Auto_mode SMI_mode and activating for entering Normal_mode Secondary Master IDE Enabling the option allows the IRQ input to be monitored for both inactivating for entering Auto_mode SMI_mode and activatin...

Page 35: ...Palette Snoop er Disabled Allocate IRQ to PCI VGA No OffBoard PCI IDE Card Auto OffBoard PCI IDE Primary IRQ Disabled OffBoard PCI IDE Secondary IRQ Disabled PCI Slot1 IRQ Priority Auto PCI Slot2 IRQ Priority Auto PCI Slot3 IRQ Priority Auto PCI Slot4 IRQ Priority Auto DMA Channel 0 PnP DMA Channel 1 PnP DMA Channel 3 PnP DMA Channel 5 PnP DMA Channel 6 PnP DMA Channel 7 PnP IRQ3 PCI PnP IRQ4 PCI ...

Page 36: ...ce installed in the PCI expansion slot The settings are Auto IRQ 3 4 5 7 9 10 and 11 in priority order DMA Channel 0 1 3 5 6 7 The option allows you to specify the bus type used by each DMA channel The settings are PnP or ISA EISA IRQ3 4 5 7 9 10 11 14 15 The option specifies the bus that the specified IRQ line is used on The option allows you to reserve IRQs for legacy ISA adapter cards The optio...

Page 37: ...ard FDC Enabled OnBoard Serial PortA 3F8 COM1 OnBoard Serial PortB 2F8 COM2 Serial PortB Mode Normal IR Duplex Mode Half Duplex IR Pin Select IRRX IRIX OnBoard Parallel Port 378 Paralled Port Mode Normal EPP Version N A Parallel Port IRQ 3 Parallel Port DMA Channel N A On Chip IDE Both Available Options Disabled 3F8 COM1 2F8 COM2 3E8 COM3 2E8 COM4 ESC Exit Sel PgUp PgDn Modify F1 Help F2 F3 Color ...

Page 38: ...rectional transfers on the parallel port EPP The parallel port can be used with devices that adhere to the Enhanced Parallel Port EPP specification EPP uses the existing parallel port signals to provide asymmetric bi directional data transfer driven by the host device ECP The parallel port can be used with devices that adhere to the Extended Capabilities Port ECP specification ECP uses the DMA pro...

Page 39: ...Speed 0 RPM Vcore 1 399 V Vtt 1 501 V 3 3V 3 349 V 5 0V 5 070 V 12 0V 12 046 V 5V SB 4 978 V ESC Exit Sel PgUp PgDn Modify F1 Help F2 F3 Color Figure 8 Hardware Monitor Setup This setup helps users monitor NOVA 7820 board on board system voltage and fan speed The function is implemented by on board W83627HF chip The voltage monitoring will cover Vcore Vtt 3 3V SB5V 5V and 12V And there is one fan ...

Page 40: ...tchdog Timer will start counting down When the timer value reaches zero the system will reset To ensure reset condition does not occur Watchdog Timer must be periodically refreshed by calling sub function 2 However the Watchdog timer will be disabled if you set the time out value to be zero A tolerance of at least 10 must be maintained to avoid unknown routines within the operating system DOS such...

Page 41: ...devices that needs On Off circuit or TTL devices You can read or write data to the selected address to enable the function of digital IO A BIOS function call INT 15H is used to control Watchdog Timer INT 15H AH 6FH Sub function AL 8 Set the Digital port is INPUT AL Digital I O input value Example program MOV AX 6F08H setting the Digital port is input INT 15H AL low byte value AH 6FH Sub function A...

Page 42: ...Coprocessor 0F2 Core logic programming configuration 0F8 0FF Math Coprocessor 1F0 1F8 Fixed Disk 295 296 Hardware Monitor 2E8 2EF Serial Port 4 2F8 2FF Serial Port 2 300 31F Prototype Card 360 36F Reserved 378 37F Parallel Printer Port 1 LPT2 3B0 3BF Monochrome Display and Printer Adapter LPT1 3C0 3CF Reserved 3D0 3DF Color Graphics Monitor Adapter 3E8 3EF Serial Port 3 3F0 3F7 Diskette Controller...

Page 43: ...Q10 COM4 IRQ3 COM2 IRQ11 COM3 IRQ4 COM1 IRQ12 PS 2 mouse IRQ5 Audio Device IRQ13 FPU IRQ6 FDC IRQ14 Primary IDE IRQ7 Printer IRQ15 Secondary IDE DMA Channel Assignments Channel Function 0 Available 1 Available 2 Floppy disk 8 bit transfer 3 Available 4 Cascade for DMA controller 1 5 Available 6 Available 7 Available ...

Page 44: ... switched on when there is a ring signal detected on pin RI of serial port Wake Up On LAN When your computer is in power down status you can see LAN Link Active LED is flashing This status indicates that the LAN chip has entered standby mode and waits for Wake Up signal You can use other computers to wake up your computer by sending ID to it ID ID is the address of your system LAN Every LAN chip h...

Page 45: ...he window will display the menu of IEI Driver CD Click IVC Series 3 Click IVC 100 100G 200 200G 4 Double click the Windows folder 5 Double click ieisetup exe Microsoft Direct X 8 1 or above is need The setup program ieisetup exe will prompt you to install Direct X 8 1 after the driver installation has been completed Therefore IEI strongly recommends you to use ieisetup exe for driver installation ...

Page 46: ...IN2 6 GROUND 7 AVIN3 8 GROUND D SUB 9 pin for both cable 1 and cable 2 PIN Description PIN Description 1 AVIN0 2 AVIN1 3 AVIN2 4 AVIN3 5 N C 6 GROUND 7 GROUND 8 GROUND 9 GROUND Cable 2 D SUB 9 pin connected to cable 1 RCA connectors are used to connect with video in source A B C D RCA connector D SUB 9 Pin ...

Page 47: ... function LCD TYPE function Procedure 1 Go to the DOS command prompt in MS DOS or Windows 9x 2 At the DOS command prompt type LCD_Prg 3 Then you can set 1 2 3 4 from LCD Type ICP Electronic Inc LCD Module Flash Utility 640x480 18 bits 800x600 18 bits 1024x768 18 bits 1024x768 36 bits M Menu 1 4 LCD Type ESC Exit 4 Reboot the system ...

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