Interrupt Permission Flag (2Fh); Crom Bank Selection (30H) - NEC PD17062 Datasheet

9.18 INTERRUPT PERMISSION FLAG (2FH)

This flag is used to enable interrupt for each interrupt cause. When the flag is set to 1, interrupt is enabled.
When the flag is set to 0, interrupt is disabled.
b b
3 2
IPSIO0 IPVSYN

9.19 CROM BANK SELECTION (30H)

b
3
0
2FH
b b
1 0
IPBTM0 IPNC
0
1
0
1
0
1
0
1
30H
b b b
2 1 0
0 0 CROMBNK
CROM address setting
0 CROM address 0800H-0BFFH
1 CROM address 0C00H-0F7FH
Interrupt from the INT pin disabled
NC
Interrupt from the INT pin enabled
NC
Interrupt from the clock timer disabled
Interrupt from the clock timer enabled
Interrupt from the V pin disabled
SYNC
Interrupt from the V pin enabled
SYNC
Interrupt from the serial interface disabled
Interrupt from the serial interface enabled
PD17062
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