Appendix
IPC-BX/M560(PCW)
77
Interrupt Levels
Table 6.2. Hardware Interrupt Levels (Factory Settings)
Type
8259
Priority
Vector
Remarks
NMI
Top
-I/O CH CK or WDT
02H
IRQ0
MASTER
↑
Timer 0
08H
IRQ1
"
|
Keyboard
09H
IRQ2
"
|
Interrupt controller 2 (Slave)
0AH
IRQ8
SLAVE
|
Real-time clock
70H
IRQ9
"
|
Unused
71H
User-definable
IRQ10
"
|
Serial port 3
72H
IRQ11
"
|
Serial port 4
73H
IRQ12
"
|
Reserved for PS-2 mouse
74H
IRQ13
"
|
Reserved for coprocessor
75H
IRQ14
"
|
Reserved for HDD
76H
Primary
IRQ15
"
|
Reserved for HDD
77H
Secondary
IRQ3
MASTER
|
Serial port 2 (COM2)
0BH
IRQ4
"
|
Serial port 1 (COM1)
0CH
IRQ5
"
|
Parallel port (LP2)
0DH
IRQ6
"
↓
Reserved for FDD
0EH
IRQ7
"
Bottom
Parallel port 1 (LPT1, LP3)
0FH
Content
Содержание IPC-BX/M560
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