Renesas RL78 Series

RL78/F13, F14 CHAPTER 21 INTERRUPT FUNCTIONS
R01UH0368EJ0210 Rev.2.10 1507
Dec 10, 2015
Figure 21-12. Interrupt Request Acknowledgment Timing (Minimum Time)
Remark 1 clock: 1/fCLK (fCLK: CPU clock)
Figure 21-13. Interrupt Request Acknowledgment Timing (Maximum Time)
Remark 1 clock: 1/f
CLK (fCLK: CPU clock)
9 clocks
Instruction Instruction
CPU processing
××IF
6 clocks
PSW and PC saved,
jump to interrupt
servicing
Interrupt servicing
program
16 clocks
Instruction
Instruction immediately
before interrupt
CPU processing
××IF
6 clocks
8 clocks
PSW and PC saved,
jump to interrupt
servicing
Interrupt servicing
program