HD643303x Hitachi, HD643303x Datasheet - Page 111

• Manufacturer Part Number: HD643303x
• Description: Hitachi Microcomputer
• Manufacturer: Hitachi

Figure 5-6 Process Up to Interrupt Acceptance when UE = 0
IRQ
Yes
0
Priority level 1?
IRQ
I = 0
No
Yes
1
Yes
Yes
Yes
Yes
No
ADI
Program execution state
Yes
Read vector address
Interrupt requested?
Save PC and CCR
Branch to interrupt
service routine
I
No
No
UI = 0
96
1, UI
NMI
Yes
No
IRQ
1
Yes
0
No
IRQ
I = 0
No
No
Yes
1
Yes
No
ADI
Yes
No
Pending