ICP Electronics ROCKY-3742EVFG, Manual

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Appendix C. Address Mapping
IO Address Map
I/O address Range Description
000-01F DMA Controller #1
020-021 Interrupt Controller #1, Master
040-05F 8254 timer
060-06F 8042 (Keyboard Controller)
070-07F Real time Clock, NMI Mask
080-09F DMA Page Register
0A0-0BF Interrupt Controller #2
0C0-0DF DMA Controller #2
0F0 Clear Math Coprocessor Busy
0F1 Reset Math Coprocessor
0F2 Core logic programming configuration
0F8-0FF Math Coprocessor
1F0-1F8 Fixed Disk
200-207 Game I/O
278-27F Parallel Printer Port 2 (LPT3)
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
3F8-3FF Serial Port 1
60
1st MB Memory Address Map
Memory address Description
00000-9FFFF System memory
A0000-BFFFF VGA buffer
C0000-C7FFF VGA BIOS
F0000-FFFFF System BIOS
1000000- Extend BIOS
*Default setting
IRQ Mapping Table
IRQ0 System Timer IRQ8 RTC clock
IRQ1 Keyboard IRQ9 Available
IRQ2 Cascade to IRQ Controller IRQ10 Available
IRQ3 COM2 IRQ11 Available
IRQ4 COM1 IRQ12 PS2 mouse
IRQ5 Available 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