Creative PCA-6780 user manual Programming Gpio & Watchdog Timer

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Appendix

A

Programming GPIO & 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.

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Contents PCA-6780 Acknowledgements CopyrightPacking List Additional Information and Assistance Page Page Contents Appendix a Programming Gpio & Watchdog Timer Table B.5IR Connector Appendix C General Information Introduction System chipsets Intel 852GM +ICH4 FeaturesSpecifications Standard SBC FunctionsMechanical and Environmental Display InterfaceSolid State disk Ethernet interfaceBoard layout dimensions component side Board layout dimensionsPage Installation Jumpers JumpersConnectors ConnectorsLocating Connectors solder side Locating Connectors component sideSetting Jumpers Clear Cmos J1 Clear Cmos J1COM2 RS-232/422/485 Select Lvds Panel Power Select JP1Lvds Panel Power Select COM2 RS-232/422/485 Select J2ATX power Connector CN5 Installing SODIMMsPrinter port Connector CN4 CompactFlash SocketCompactFlash CN22 Connecting the floppy drive Floppy Connector CN3Connecting the hard drive IDE Connector CN215 VGA/LVDS interface connections CRT display Connector CN10Lvds LCD panel Connector CN8 LCD Inverter Connector CN6Network boot USB Connectors CN9,CN11Ethernet configuration LAN Connector CN13HDD LED Pin1&Pin2,Pin3&Pin4,Pin5&Pin6 HDD LED/Reset/Power Button CN1Reset Pin7&Pin8 Power Button Pin9&Pin10Audio Interface Connector CN7 COM port Connector CN14,CN15Mini Keyboard Connector CN17 External Keyboard Connector CN18Page Bios Operation Bios Introduction Control Keys Bios SetupMain Menu Exit Without Saving Load Optimized DefaultsSet Password Save & Exit SetupStandard Cmos Features Total Memory Halt onBase Memory Extended MemoryAdvanced Bios Features Boot Up NumLock StatusDisabled First / Second / Third / Other Boot DriveSwap Floppy DriveDisabled Boot Up Floppy SeekDisabledMPS Version Control for OS1.4 Security OptionSetupVideo Bios ShadowEnabled Full Screen Logo ShowEnabledAdvanced Chipset Features Delayed Transaction Enabled System Bios CacheableEnabledVideo Bios CacheableDisabled Memory Hole At 15M-16MDisabledOn-Chip VGA Enabled Boot Display Vbios DefaultOn-Chip Frame Buffer Size 32MB Super IO Device Integrated PeripheralsOnChip IDE Device Onboard DevicePower ManagementMin Saving Power Management SetupAcpi FunctionEnabled Run VGA Bios if S3 ResumeAutoWake-Up by PCI cardEnabled Suspend Mode 1 HourHDD Power Down Mode15 Min Soft-Off by PWR-BTTNEnabledResume by AlarmDisabled USB KB Wake-Up From S3Enabled7 PnP/PCI Configurations Shutdown Temperature Disabled PC Health StatusCurrent System/CPU Temp Show Only Frequency/Voltage Control Auto Detect PCI Clk EnabledSpread Spectrum Disabled CPU Host/SRC/PCI Clock DefaultLoad Optimized Defaults Set Password To Establish PasswordTo Change Password To Disable Password Quit Without Saving Save & Exit SetupPage Page Driver Installation Step Driver IntroductionInstall Audio Driver for Windows XP/2000 Driver InstallationInstall Intel INF Update Driver for Windows XP/2000 Install Intel Graphic Driver for Windows XP 2000Page Programming Gpio & Watchdog Timer Appendix a Programming Gpio & Watchdog Timer Supported Gpio RegisterGpio Registers Gpio Example program-1 MOV DX,2EH MOV AL,AAH OUT DX,AL Watchdog programming Page Pin Assignments HDD LED/Reset/Power Button CN1 Table B.1 HDD LED/Reset/Power Button CN1Appendix B Pin Assignments Table B.2 Primary IDE Connector CN2 Primary IDE Connector CN2Table B.3 Floppy Connector Floppy ConnectorTable B.5 IR Connector Printer Port ConnectorIR Connector Table B.4 Printer Port ConnectorTable B.7 Audio Interface CN7 Lvds Connector CN8Table B.8 Lvds Connector CN8 Audio Interface CN712 PC 104 Connector USB port 1, 2 Connector CN9SUB VGA Connector CN10 USB port 3,4 Connector CN11LAN RJ45 Connector CN13 COM port 1 RS-232CN14COM port 2 RS-232/422/485CN15 ISA Gold Finger CN19 ATX Suspend Power Connector CN20 ATX Power Connector CN1617 KB/MS Connector CN17 External KB/mouse Connector CN18Negative Power Input CN21 CF Connector CN22Table B.19 Negative Power Input CN21 Table B.21 Clear Cmos J1 Lvds Voltage Choose JP13 232/422/485 SEL J2 Table B.20 Lvds Voltage Choose JP1Page System Assignments Appendix C System Assignments System I/O PortsTable C.1 System I/O ports Table C.2 1st MB memory map 1st MB memory mapTable C.3 DMA channel assignments DMA channel assignmentsTable C.4 Interrupt assignments Interrupt assignments