NEC mPD178054 Series User Manual page 171

Figure 12-11. Interrupt Request Acknowledgement Timing (Minimum Time)
CPU processing
××IF
(××PR = 1)
××IF
(××PR = 0)
1
Remark 1 clock:
f
CPU
Figure 12-12. Interrupt Request Acknowledgement Timing (Maximum Time)
CPU processing
××IF
(××PR = 1)
××IF
(××PR = 0)
1
Remark 1 clock:
f
CPU
CHAPTER 12 INTERRUPT FUNCTIONS
Instruction
(f : CPU clock)
CPU
Instruction
(f : CPU clock)
CPU
User's Manual U15104EJ2V0UD
PSW and PC save,
Instruction
jump to interrupt
servicing
8 clocks
7 clocks
25 clocks
PSW and PC save,
Divide instruction
jump to interrupt
servicing
33 clocks
32 clocks
6 clocks
Interrupt
servicing
program
6 clocks
Interrupt
servicing
program
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