System I/O Ports; Dma Channel Assignments - Advantech PCA-6742 Series User Manual

C.1

System I/O ports

Table C.1: System I/O ports
Addr. Range (Hex)
000-00F
020-021
022-023
040-043
048-04B
060/064
061
068-06D
065/067
070-07F mask
080-08F
092
0A0-0A1
0C0-0DF
0F0
0F1
0F8-0FF
170- 177
1F0-1F7
2E8-2EF
2F8-2FF
378-37F
3B0-3BF
3C0-3CF
3D0-3DF
3E8-3EF
3F0-3F7
3F8-3FF
480-48F
4D0-4D1
C.2

DMA Channel assignments

Table C.2: DMA Channel assignments
Channel
0
1
2
3
4
5
6
7
PCA-6742 User Manual
Device
DMA controller
Interrupt controller 1, master
Chipset address
Timer / Counter Register
PWM Control Register
Keyboard / Mouse Control Resisters
NMI status and Control Registers
Watchdog Timer 1 Control Register
Watchdog Timer Reload Register
Real-time clock, non-maskable interrupt (NMI)
DMA page Register
System Control Register
Interrupt controller 2
DMA controller
Clear math co-processor
Reset math co-processor
Math co-processor
2nd fixed disk for CompactFlash
1st fixed disk
Serial port 4
Serial port 2
Parallel printer port 1 (LPT2)
Monochrome display and printer adapter (LPT1)
Reserved
Color / Graphics monitor adapter
Serial port 3
Diskette controller
Serial port 1
DMA High page Registers
Interrupt Edge / Level control Registers
Function
Available
Available
Reserved
Parallel
Cascade for DMA controller 1
Available
Available
Available
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