TECHNICAL INFORMATION
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SYSTEM INTERRUPTS
Sixteen levels of system interrupts are
provided on BISON II. The following shows the
interrupt-level assignments in decreasing priority.
Level
Function
Microprocessor NMI
Parity or I/O Channel
Check
Interrupt Controllers
CTLR 1
CTLR 2
IRQ0
Timer Output 0
IRQ1
Keyboard
(Output Buffer Full)
IRQ2
Interrupt from CTLR 2
IRQ8
Real-time Clock Interrupt
IRQ9
Software Redirected to
INT 0AH (IRQ2)
IRQ10 Reserved
IRQ11 Reserved
IRQ12 Reserved
IRQ13 Coprocessor
IRQ14 Fixed Disk Controller
IRQ15 Reserved
IRQ3
Serial Port 2
IRQ4
Serial Port 1
IRQ5
Parallel Port 2
IRQ6
Diskette Controller
IRQ7
Parallel Port 1
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Содержание BISON II
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