Philips CD-I - Page 59

- Abort interrupt register
Software can read and write this register at the
same address.
bit assignment
Bit Name
D15
D14
D13
D12
Active Note
not used
not used
not used
Dll VECEN
DlO IPL2
H
H
H
H
H
H
H
H
H
H
H
H
not used
Vector enable
Interrupt priority level(IPLO-IPL2)
D09
DOB
IPLl
IPLO
OD07 V7
D06 V6
DOS VS
D04 V4
D03 V3
D02 V2
DOl Vl
DOO VO
VECEN
IPLO-IPL2
Vector number(VO-V7)
set to O after reset
1: vector number is valid.
0: vector number is not valid.
Interrupt priority level
0 no interrupt
1 not used
2 interrupt
level 2
3 not used
4
interrupt
level
4
s interrupt
level s
6
not used
7 interrupt
level 7
Interrupt priority level is set to •no
interrupt• after reset. Interrupt vector
number is set to •o• after reset.
3-19
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