Compaq AP200 Maintenance And Service Manual page 127

7-4 Physical and Operating Specifications
Hardware DMA
DMA 0
DMA 1
DMA 2
DMA 3
DMA 4
DMA 5
DMA 6
DMA 7
I/O Address (Hex)
000 - 00F
010 - 01F
01F - 01FF
020 - 03F
040 - 043
044 - 05F
060
061
062 - 063
064
065 - 06F
070 - 071
072-077
072 - 07F
Table 7-3
System Direct Memory Access (DMA)
System Function
Business audio (default; alternate = DMA0, none)
Business Audio (default; alternate = DMA0, DMA3, none)
Diskette drive
ECP parallel port LPT1 (default; alternate = DMA 0)
DMA controller cascading (not on ISA bus)
Unused
Unused
Unused
Table 7-4
System I/O
System Function (Shipping Configuration)
DMA controller # 1
Unused
IDE controller
Interrupt controller # 1
Counter/Timer
Unused
Keyboard controller
Port B
Unused
Keyboard controller
Unused
NMI enable/real-time clock
CMOS storage
Unused
Continued