User manual

PCA-6742 User Manual 42
C.1 System I/O ports
C.2 DMA Channel assignments
Table C.1: System I/O ports
Addr. Range (Hex) Device
000-00F DMA controller
020-021 Interrupt controller 1, master
022-023 Chipset address
040-043 Timer / Counter Register
048-04B PWM Control Register
060/064 Keyboard / Mouse Control Resisters
061 NMI status and Control Registers
068-06D Watchdog Timer 1 Control Register
065/067 Watchdog Timer Reload Register
070-07F mask Real-time clock, non-maskable interrupt (NMI)
080-08F DMA page Register
092 System Control Register
0A0-0A1 Interrupt controller 2
0C0-0DF DMA controller
0F0 Clear math co-processor
0F1 Reset math co-processor
0F8-0FF Math co-processor
170- 177 2nd fixed disk for CompactFlash
1F0-1F7 1st fixed disk
2E8-2EF Serial port 4
2F8-2FF Serial port 2
378-37F Parallel printer port 1 (LPT2)
3B0-3BF Monochrome display and printer adapter (LPT1)
3C0-3CF Reserved
3D0-3DF Color / Graphics monitor adapter
3E8-3EF Serial port 3
3F0-3F7 Diskette controller
3F8-3FF Serial port 1
480-48F DMA High page Registers
4D0-4D1 Interrupt Edge / Level control Registers
Table C.2: DMA Channel assignments
Channel Function
0 Available
1 Available
2 Reserved
3 Parallel
4 Cascade for DMA controller 1
5 Available
6 Available
7 Available