ICP DAS USA SAGP-845EV Manuel D’Utilisation
57
1st MB Memory Address Map
Memory address
Description
00000-9FFFF System
memory
A0000-BFFFF VGA
buffer
F0000-FFFFF System
BIOS
1000000- Extend
BIOS
*Default setting
IRQ Mapping Table
IRQ0
System Timer
IRQ8
RTC clock
IRQ1 Keyboard
IRQ9 USB2.0
IRQ2 Available
IRQ10 LAN
IRQ3 COM2
IRQ11 AUDIO/SMBus
Cntrlr
IRQ4 COM1
IRQ12 PS/2
mouse
IRQ5 Available
IRQ13 FPU
IRQ6 FDC
IRQ14 Primary
IDE
IRQ7 Available
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