Intel Raptor AT manual Appendix D On-Board Industrial Devices, Watchdog Timer, Hardware Reset

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Appendix D: Industrial Devices

Appendix D

On-Board

 

Industrial Devices

The Raptor AT features two industrial devices: A watchdog timer that will reset the system is case of failure according to a pre-set time-out, and a Post Code display that will help you on troubleshooting.

Watchdog Timer

This device can be set as hardware, software or disabled (Table D-1). The watchdog timer will monitor your motherboard and reset if any problem occurs. The time-out ranges from 1200, 600 and 150 milliseconds (Table D-2). The Watchdog timer can work in two ways:

Hardware Reset

The watchdog timer monitors the BALE signal. If BALE stops oscillating for the time set at JP8, the watchdog will reset the board.

Software Reset

The software has to access the watchdog timer at least every time-out to prevent the board from resetting. This allows a very tight control of the motherboards operation, but involves writing software for the time- out control. For using software control, you need to know the watchdog address, the enable bit and the strobe bit. For example, if you set the watchdog timer to address 310h, you have to output a 0 at bit 1 of 310h to enable the watchdog, and then toggle bit 0 of 310h to strobe it. If the strobe signal takes longer than the time-out the board will reset.

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Contents Raptor AT Page Chapter Pre-ConfigurationAppendix B Flash Bios Programming Appendix C Disk-On-Chip Appendix a Technical SpecificationsAppendix E On-Board Appendix D On-Board IndustrialRaptor AT Installation Guide Introduction System Board Pre-ConfigurationStatic Electricity Warning Supported Bus Clocks CPU SupportMemory On-Board I/OOn-Board Ethernet Conventions Used in this ManualStatic Warning Pre-ConfigurationRaptor AT Installation Guide Jumper Types Jumper Locations Jumper LocationsReset Cmos Normal Clear Cmos Cmos ResetFlash Bios Write Protect Flash Write-protect Enabled DisabledTimeout Watchdog Timer SelectionClock Speed Selection Clock JP11Address 110h Closed Open 310h Ethernet Selection Enabled DisabledATX Power Supply Enhancements CPU Installation Raptor AT Memory ConfigurationFan Heatsink Designing for thermal performanceInstalling Cables Power and Control Panel Cables Disk-on-Chip installationInstalling Peripheral Cables Airflow managementPre-Configuration Location of Components and Connectors Connector Description Index of ConnectorsUsers Notes Starting Bios Setup SetupUsing the Keyboard with Bios Setup Bios Setup Main MenuFloppy Drive A, B Standard SetupDate/Time Boot Sector Virus Protection Advanced Cmos SetupQuick Boot Pri Master Pri Slave Sec Master Sec SlaveInitial Display Mode Try Other Boot DevicesFloppy Access Control Hard Disk Access ControlA.R.T. for Hard Disks Boot Up Num LockFloppy Drive Swap Floppy Drive SeekBoot to OS/2 Password CheckWait for F1 If Error Primary DisplaySystem Bios Cacheable Advanced Chipset SetupInternal Cache C000,16K Shadow C400,16K ShadowMulti-Trans Timer Clks BX/GX Master Latency Timer ClksPCI 1 to PCI 0 Access USB KB/Mouse Legacy SupportPCI 0 Agent to Aperture Access Memory Autosizing Support Aperture Access Global EnableDram Integrity Mode Sdram RAS# to CAS# DelaySearch for MDA Resources Bit I/O Recovery Time Power Down Sdram16bit I/O Recovery Time Sdram Precharge ControlPower Management Setup Power button Function Power Management/APMGreen PC Monitor Power State Video Power Down ModeStandby / Suspend Timer Unit Power Saving TypeStandby Timeout Suspend TimeoutPCI Latency Timer PCI Clocks PCI/Plug and Play SetupLAN Wake-Up Plug and Play Aware OSAllocate IRQ to PCI VGA PCI VGA Palette SnoopPCI IDE Bus Master Off-board PCI IDE CardDMA Channel Off-board PCI IDE Secondary IRQReserved Memory Size Peripheral SetupReserved Memory Address PCI Device Search OrderInfra-Red Transmission Mode Serial Port2 ModeParallel Port Mode Onboard Serial Port1CPU Overheat Warning Temperature CPU Current TemperatureEPP Version Parallel Port IRQAuto Detect Hard Disk Change User PasswordCPU Fan Secondary Fan Onboard IDEChange Supervisor Password Exit without Saving Auto Configuration with Fail-Safe SettingsSave Settings and Exit Upgrading the Microprocessor Chapter UpgradingUpgrading the System Memory Users Notes System Memory BiosAppendix a Embedded I/O Miscellaneous Industrial DevicesCPU Socket Control Panel ConnectionsForm Factor PCB ConstructionDMA Channels Memory MapAddress Range Size Description Decimal Hexadecimal Data Width System ResourceAddress hex Description MapBus # Device # Function # Description PCI Configuration Space MapOn-board Devices PCI Interrupt Routing Map SignalInterrupts Device Slave Address Connectors Pin-outEthernet Header J31 Pin# Serial Ports DB9M J36 and J37Pin# Pin# Parallel DB25F J13HDD LED Appendix B Flash Bios Programming Beeps Description Appendix C Disk-On-Chip Users Notes Hardware Reset Watchdog TimerSoftware Reset Appendix D On-Board Industrial DevicesPost Code Display AddressCheckpoint Description Code Post Checkpoint CodesTable D-5 Bootblock Recovery Codes Table D-6 Uncompressed Initialization Codes Memory refresh line is toggling. Checking 3Ah Performing the DMA controller 2 base register test next Winbios Adaptor ROM had control and has now returned Table D-7 Bus Checkpoint Codes Bits Description Appendix E On-Board Ethernet Users Notes Page MN-RBXAT-03