User manual

AIMB-252 User Manual 84
B.22 Interrupt Assignments
B.23 1st MB Memory Map
B.24 PCI Bus Map
Table B.23: Interrupt Assignments
Priority Interrupt# Interrupt Source
1 NMI Parity error detected
2 IRQ0 Interval timer
3 IRQ1 Keyboard
- IRQ2 Interrupt from controller 2 (cascade)
4 IRQ8 Real-time clock
5 IRQ9 Cascaded to INT 0A (IRQ 2)
6 IRQ10 Serial communication port 4
7 IRQ11 Serial communication port 5
8 IRQ12 PS/2 mouse
9 IRQ13 INT from co-processor
10 IRQ14 Primary IDE Channel
12 IRQ3 Serial communication port 2
13 IRQ4 Serial communication port 1
14 IRQ5 Serial communication port 3
15 IRQ6 Diskette controller (FDC)
16 IRQ7 Parallel port 1 (print port)
Table B.24: 1st MB Memory Map
Addr. range (Hex) Device
E0000h - FFFFFh BIOS
CC000h - DFFFFh Unused
C0000h - CBFFFh VGA BIOS
A0000h - BFFFFh Video Memory
00000h - 9FFFFh Base memory
Table B.25: PCI Bus Map
Function Signals Device ID INT# pin GNT REQ
PCI slot 1 AD31 INT B, C, D, A SNT0 REQ0