EMAC DX3-6726-2C-2G-T, User Manual

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VDX3-6726 User Manual
2
I/O Mapping
Address Description Usage
0000h – 000Fh DMA 8237-1 *
0020h – 0021h PIC 8259-1 *
0022h – 0023h Indirect Access Registers (6117D configuration port) *
0040h –0043h Timer Counter 8254 *
0060h Keyboard / Mouse data port
0061h Port B + NMI control port *
0062h – 0063h 8051 download 4k address counter
0064h Keyboard/ Mouse status/ command port
0065h WatchDog0 reload counter
0070h – 0071h CMOS RAM port *
0072h – 0075h MTBF control register *
0078h – 007Ch GPIO port 0,1,2,3,4 default setup *
0080h – 008Fh DMA page register
0092h System control register *
0093h – 0097h GPIO port 6,7,8,9,A direction control *
0098h – 009Dh GPIO port 0,1,2,3,4,5 direction control *
00A0h – 00A1h PIC 8259-2 *
00A8h – 00ADh WatchDog1 control counter *
00AEh WatchDog1 reload counter *
00C0h – 00DFh DMA 8237-2 *
00E0h – 00EFh DOS 4G Page access *
0100h – 0105h GPIO port 5,6,7,8,9,A default setup *
0170h – 0177h IDE 1(IRQ 15) *
0278h – 027Fh Printer port (IRQ7, DMA 0) *
02E8h – 02EFh COM4 (IRQ 11) *
02F8h – 02EFh COM2 (IRQ 3) *
03E8h – 03EFh COM3 (IRQ 10) *
03F6h IDE1 ATAPI device control write only register *
03F8h – 03FFh COM1 (IRQ 4) *
0480h – 048Fh DMA High page register *
0490h – 0499h Instruction counter register *
04D0h – 04D1h 8259 Edge / level control register *
0CF8h – 0CFFh PCI configuration port *
DE00h – DEFFh On board LAN *
FC00h – FC05h SPI Flash BIOS control register *