6. Appendix
IPC-BX955 User’s manual
87
Interrupt Level List
Table 6.2. Hardware Interrupt Levels (Factory Settings)
Type
8259
Priority
Description
Vector
NMI
High
-I/O CHK
02H
IRQ0
MASTER
↑
Timer 0
08H
IRQ1
”
System reserved
09H
IRQ2
”
Interrupt controller 2 (slave)
0AH
IRQ8
SLAVE
Real-time clock
70H
IRQ9
”
System reserved
71H
IRQ10
”
Not in use (Available for users)
72H
IRQ11
”
Not in use (Available for users)
73H
IRQ12
”
Not in use (Available for users)
74H
IRQ13
”
Co-processor
75H
IRQ14
”
Primary IDE
76H
IRQ15
”
Not in use (Available for users)
77H
IRQ3
MASTER
Serial port 2 (COM2)
0BH
IRQ4
”
Serial port 1 (COM1)
0CH
IRQ5
”
Not in use (Available for users) *1
0DH
IRQ6
”
↓
Not in use (Available for users)
0EH
IRQ7
”
Low
Not in use (Available for users)
0FH
*1 This device is reserved for future enhancement and currently unavailable.