Curtis AR-B1682 Timer & DMA Channels MAP, Timer Channel Map, DMA Channel Map, IBM Sdlc

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B-3. TIMER & DMA CHANNELS MAP

Timer Channel Map :

	Timer Channel	Assignment
	0	System timer interrupt
	1	DRAM Refresh request
	2	Speaker tone generator
DMA Channel Map :

	DMA Channel	Assignment
	0	Available
	1	IBM SDLC
	2	Floppy Disk adapter
	3	Channel-3 Available
	4	Cascade for DMA controller 1
	5	Available
	6	Available
	7	Available

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Contents Version ~ Page ii ~ Copyright Notice Acknowledgements ~ Page iv ~ U㿺 薅薅薅薅薅薅薅薅薅薅薅薅薅薅薅薅薅薅薅薅薅薅薅薅薅薅薅薅薅薅薅薅藜薅耟薅薅薅薅薅庆蚽强栾头学 Introduction Introduction About this ManualSystem Specification Safety Precautions Hardware Configuration Jumper & Connector Quick Reference Table Switch & JumperConnector HOW to SET Jumpers Component LocationsJumpers and CAP DOC Memory System Clock Select and CPU SettingDOC Memory Mapping Selection JP6, JP7 DOC 2000 SEG SW1DC00H OFF OFF DisableCOM2 CONNECTORCN12 COM1 CONNECTORCN24COM1 COM1 Connector, DB9 male connector COM2 COM2 ConnectorReset SWITCHCN18 External Keyboard & Mouse CONNECTORCN23Power LED & Keylock CONNECTORCN13 IR CONNECTORCN5Hard Disk Drive Connector Floppy Disk Drive CONNECTORCN6FDD Floppy Disk Drive Connector IDE1 Hard Disk Drive ConnectorCN1SA2 IDE2 Hard Disk Drive ConnectorCN7SA1 HD LED a Not UsedLCD Connector 36BITCN9+CN11 LCD Connector 24BITCN9CN9 PIN Assignment GND Shfclk FLM GND Enablk VEE~ Page 15 ~ Watchdog CONNECTORCN17 VGA CRT CONNECTORCN19External Speaker HEADERCN20 PIN Function Assignment TPTX+ Not Used Tprx TPRX+System FAN Power CONNECTORCN27 Printer CONNECTORCN2Power on Connector for ATX Power SUPPLYCN15 Power Control CONNECTORCN4Scsi CONNECTORCN3 Universal Serial BUS Connector CN14CPU FAN Power CONNECTORCN26 DOC 32pin Disk-on-chip Socket Clear Cmos FUNCTIONJ4Dram Bank Configuration Dimm Total Memory Memory InstallingSoftware Utilities WIN 95 Scsi Driver Setup WIN95 VGA SetupWIN NT Scsi Driver Setup RemarkPIIX4 Driver Setup Watchdog Timer ConfigurationWatchdog Timer Enabled Watchdog Timer Disabled ~ Page 26 ~ AMI Bios Setup ~耟Page 28 ~ Amibios Hiflex Setup Utility Version Bios Setup OverviewDate & Time Setup Standard Cmos SetupFloppy Setup Hard Disk SetupQuick Boot Advanced Cmos SetupTry Other Boot Devices Floppy Access ControlBootUp Num-Lock HDD Access ControlPassword Check Boot to OS/2 64MBInternal Cache Hit ‘DEL’ Message DisplayExternal Cache Cache Bus ECCAdvanced Chipset Setup Memory Hole at 15-16 MB ATX Power Supply ControllerUSB Function USB Keyboard/Mouse Legacy SupportPower Management Suspend Time Outminute Restore on AC/Power LossThrottle Slow Clock Ratio Modem Use IO PortPCI/PLUG and Play PCI IDE BusMaster PCI VGA Palette SnoopDMA & IRQ Reserved Memory SizePeripheral Setup Load Default Setting Password SettingReset, Power, Sleep Button AUTO-DETECT Hard DisksBios Update Bios Exit~ Page 43 ~ Appendix a Component Side PIN Assignment GND CH CHK MEMCS16 Sbhe ResetIRQ10 IRQ9Picmg BUS PIN Assignment ~ 47 ~耟 Appendix B IRQ Assignment Interrupt MAPCode Assignment RTC & Cmos RAM MAPTimer Channel Map Timer & DMA Channels MAPDMA Channel Map IBM SdlcI/O & Memory MAP Memory MapMap ~ Page 53 ~ Trouble Shooting Memory Verifying Error Memory Address ErrorReboot Error Memory Size has Changed