B.20
Interrupt Assignments
Table B.20: Interrupt Assignments
Interrupt#
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
B.21
1 MB Memory Map
Table B.21: 1 MB memory map
Address Range
E8000h - FFFFFh
D0000h - E7F00
C0000h - CFF00
A0000h - BFFFFh
00000h - 9FFFFh
B.22
PCI Bus Map
Table B.22: PCI Bus Map
Signal
PCI Slot 1
PCI Slot 2
PCI Slot 3
PCI Slot 4
Interrupt source
System timer
Keyboard
Interrupt from controller 2 (cascade)
Communication port (COM2)
Communication port (COM1)
Available
Communication port (COM8-11) for PCA-COM485 module
Available
System COMS/Real-time clock
Available
Intel 8/C220 series SMBus Controller
Communication port (COM3-6) for PCA-COM232 module
PS/2 mouse
Numeric data processor
Available
Available
Device
BIOS
Unused
VGA BIOS
Video Memory
Base memory
IDSEL
INT#PIN
AD31
INT B, C, D, A
AD30
INT C, D, A, B
AD29
INT D, A, B, C
AD28
INT A, B, C, D
GNT
GNT A
GNT B
GNT C
GNT D
95
REQ
REQ A
REQ B
REQ C
REQ D
PCA-6028 User Manual