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