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Hawk Programming Details
4
Notes 1. Internally generated by the PBC.2. These interrupt sources must be routed to the appropriate ISA IRQ using the PBC interrupt routing regist er s.
9 IRQ14 IRQ14 Edge High Primary IDE interface
10 IRQ15 IRQ15 Level Low PMC1 or PMC2 Interrupt
11 IRQ3 IRQ3 INT1 Level Low COM2 or COM4 Interru pt
12 IRQ4 IRQ4 Level Low COM1 or COM3 Int errupt
13 PIRQB_ IRQ5 Level Low 21554 Secondary Int errupt
14 IRQ6 IRQ6 Edge High Not Used
15 IRQ7 IRQ7 Edge High Not Used
Table 4-2. PBC ISA Interrupt Assignments (Continued)
PRI PSIO
IRQ
Input
Routed to
ISA
IRQ
Controller
Edge/
Level
Polarity
Interrupt Source
Notes