Appendix C: System Resources; System Resources - Toshiba Satellite 110 Series User Manual

System
Resources
This appendix lists the pre-assigned IRQ levels, DMA channels
and I/O port addresses.
IRQ Level Assignments
The direct line to the CPU is called an Interrupt ReQuest (IRQ)
level or channel. You'll hear both terms used by technical experts.
They mean the same thing. The following table lists the IRQ level
assignments for the computer:
IRQ Use
0 Timer
1 Keyboard
2 PIC #2
3 COM2
4 COM1
5 Available
6 3.5-inch diskette drive
Notes
COM4 or PC Card
COM3 or PC Card
Choice for PC Card
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