IBM RS/6000 7043 43P Series

DMA-Channel Assignments
The following table shows the DMA-channel assignments.
DMA
Channel Description
0 Available for ISA bus if not used for system audio
1 Available for ISA bus if not used for system audio
2 Diskette drive controller
3 Available for ISA bus if not used for parallel port (ECP must be enabled)
4 Cascade (Not Available)
5 Available for ISA bus
6 Available for ISA bus
7 Available for ISA bus
Note:
DMA operations can be performed only between ISA or system-board devices and ISA memory, PCI
memory, or system memory.
Audio needs up to 2 channels, they can only be mapped to DMA channels 0 and 1. ECP needs only
one channel, 0, 1, or 3.
C-2 7043 43P Series User's Guide