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PCA-6743 User Manual
Appendix C
S
ystem
Assignments
C.2
DMA Channel assignments
C.3
Interrupt assignments
Table C.2: DMA Channel assignments
Channel
Function
0
Available
1
Available
2
Standard floppy disk controller
3
Parallel
4
Cascade for DMA controller 1
5
Available
6
Available
7
Available
Table C.3: Interrupt assignments
Interrupt#
Interrupt source
NMI
Parity error detected
IRQ 0
System timer
IRQ 1
Keyboard
IRQ 2
Interrupt from controller 2 (cascade)
IRQ 8
Real-time clock
IRQ 9
Available/Serial Port 6
IRQ 10
Communication ports (COM3)
IRQ 11
Available/Serial Port 8
IRQ 12
PS/2 mouse
IRQ 13
INT from co-processor
IRQ 14
Primary IDE
IRQ 15
Secondary IDE for CompactFlash
IRQ 3
Communication ports (COM2)
IRQ 4
Communication ports (COM1)
IRQ 5
Communication ports (COM4)
IRQ 6
Floppy Disk
IRQ 7
Parallel port 1 (print port)
Summary of Contents for PCA-6743
Page 9: ...PCA 6743 User Manual viii ...
Page 13: ...PCA 6743 User Manual 4 ...
Page 36: ...Chapter 3 3 BIOS Operation This chapter describes how to set BIOS configuration data ...
Page 51: ...PCA 6743 User Manual 42 ...
Page 62: ...Appendix C C System Assignments This appendix contains informa tion of all System assignments ...