rtd cpuModule CMC6686GX, User Manual

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79
Hardware Interrupts
The cpuModule supports the standard PC interrupts listed below. Interrupts not in use by hardware
on the cpuModule itself are listed as 'available'.
1
Floppy disk interrupt, INT6, is available for use if no floppy disk is present in the system and flop-
py disk is disabled in Setup.
2
Hard disk interrupt, INT14, is available for use if no hard disk drive is present in the system and
hard disk is disabled in Setup.
If you add any PC/104 modules or other peripherals to the system you
must ensure they
do not use interrupts needed by the cpuModule, or
malfunctions will occur
Hardware Interrupts Used on the cpuModule
Interrupt Normal Use Source
0 Timer 0 On-board ISA device
1 Keyboard On-board ISA device
2 Cascade of IRQ 8-15 On-board ISA device
3 COM2 On-board ISA device
4 COM1 On-board ISA device
5 available XT bus
6
Floppy
1
XT bus
7 Printer On-board ISA device
8 Real Time Clock On-board ISA device
9 available, routed to IRQ
2
XT bus
10 available AT bus
11 available AT bus
12 Bus mouse On-board ISA device
14
IDE hard disk
2
AT bus
15 available AT bus