Appendix C. Interrupt and DMA Resources
This appendix lists the settings for the default interrupt and direct memory access
(DMA) resources for both the PC 300PL and PC 300GL.
Note:
The interrupt and DMA settings might change under configuration control
or can be changed by using the Configuration/Setup Utility program.
Table 2. Interrupt Resources for the PC 300PL
Interrupt Request
System Resource
0
Timer
1
Keyboard
2
Interrupt Controller
3
Serial Port B
4
Serial Port A
5
Audio, if installed
6
Diskette
7
Available
8
Real time clock
9
Available
10
Available
11
Available
12
Mouse
13
Coprocessor
14
IDE Drives (0, 1), if installed
15
IDE Drives (2, 3), if installed
Table 3. DMA Resources for the PC 300PL
DMA Request
Data Width
System Resource
0
8 bits
Audio, if installed
1
8 bits
Audio, if installed
2
8 bits
Diskette
3
8 bits
Available
4
–
System Resource
5
16 bits
Available
6
16 bits
Available
7
16 bits
Available
Copyright IBM Corp. 1998
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Summary of Contents for PC 300PL Types 6862
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