Specifications

AA
Appendix A: Interrupts &
DMA Channels
Interrupts and DMA Channels
All of the following interrupts are used on the EPC-7 and cannot be disabled (except
COM1, COM2, and LIP1, which can be disabled in the Setup Screen.) The
assignment of interrupts is shown in the following table:
NMI DRAM parity error, EXM expansion interface I/O
channel check
IRQ0 timer
IRQ1 keyboard
IRQ3 COM2 serial port
IRQ4 COM1 serial port
IRQ5 unassigned
IRQ6 floppy disk controller
IRQ7 LPT1 parallel port
IRQ8 clock
IRQ9 unassigned
IRQ10 VXI interrupt/event
IRQ11 SCSI controller
IRQ12 unassigned
IRQ13 unassigned
IRQ14 IDE disk
IRQ15 unassigned
Table 18. Interrupt Assignments.
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