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Bitfields for OPTi 82C750 Vendetta (device 1) keyboard control

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Bit Description

15

keyboard port read (read-only)

14

keyboard port write (read-only)

13

keyboard RESET CPUINIT
0 = generate immediately
1 = wait for halt

12

keyboard emulation disable

11 - 9

PIRQ3# IRQ generation
000 = use interrupt trigger control register (offset 50h)
001 = IRQ5
010 = IRQ9
011 = IRQ10
100 = IRQ11
101 = IRQ12
110 = IRQ14
111 = IRQ15

8 - 6

PIRQ2# IRQ generation

5 - 3

PIRQ1# IRQ generation

2 - 0

PIRQ0# IRQ generation

See Also:

#00939,#00941