ICP Electronics PSB Form Factor Board SAGP-845EV User Manual page 45

1st MB Memory Address Map
Memory address
00000-9FFFF
A0000-BFFFF
F0000-FFFFF
1000000-
IRQ Mapping Table
IRQ0 System Timer
IRQ1 Keyboard
IRQ2 Available
IRQ3 COM2
IRQ4 COM1
IRQ5 Available
IRQ6 FDC
IRQ7 Available
DMA Channel Assignments
Channel
0 Available
1 Available
2 Floppy disk (8-bit transfer )
3 Available
4 Cascade for DMA controller 1
5 Available
6 Available
7 Available
Description
System memory
VGA buffer
System BIOS
Extend BIOS
IRQ8 RTC clock
IRQ9 USB2.0
IRQ10 LAN
IRQ11 AUDIO/SMBus Cntrlr
IRQ12 PS/2 mouse
IRQ13 FPU
IRQ14 Primary IDE
IRQ15 Secondary IDE
Function
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