Toshiba 8000 User Manual page 245

The following table lists the computer's DMA channel
assignments.
DMA Use
0 Sound system
1 Sound system
2 3.5-inch diskette drive
3 ECP
4 Cascade from DMA channel 1
5 Reserved
6 Reserved
7 Reserved
Input/output port address assignments
The CPU accesses input/output devices, such as modems, by
reading from them or writing to them. Each command to read or
write must specify the address (in memory) for the port. Each
device that communicates with the CPU must have a unique I/O
port address.
The following table lists the device names and their assigned I/O
port addresses for the computer.
Port address
(h)
000-01F
020-03F
040-05F
Device/function
82C37: DMA controller 1
82C59: PIC 1
82C54: timer
System Resources
Notes
Choice for sound system
Choice for ECP
Choice for sound system, ECP
Notes
Part III: Appendixes
221