Renesas RL78/G1H User Manual

RL78/G1H CHAPTER 19 INTERRUPT FUNCTIONS
R01UH0575EJ0120 Rev. 1.20 Page 722 of 920
Dec 22, 2016
Figure 19 - 10 Interrupt Request Acknowledgment Processing Algorithm
xxIF: Interrupt request flag
xxMK: Interrupt mask flag
xxPR0: Priority specification flag 0
xxPR1: Priority specification flag 1
IE: Flag that controls acknowledgment of maskable interrupt request (1 = Enable, 0 =
Disable)
ISP0, ISP1: Flag that indicates the priority level of the interrupt currently being serviced (see Figure
19 - 9
)
Note For the default priority, refer to Tables 19 - 1 and 19 - 2 Interrupt Source List.
Start
××IF = 1?
××MK = 0?
IE = 1?
Yes
No
Yes (interrupt request generation)
Yes
No (Low priority)
No
Yes
No
No
Yes (High priority)
(xxPR1, xxPR0)
≤ (ISP1, ISP0)
Higher default
priority
Note
than other
same-priority interrupt requests
simultaneously
generated?
Yes
No
Vectored interrupt servicing
Interrupt request held pending
Interrupt request held pending
Interrupt request held pending
Interrupt request held pending
Interrupt request held pending
Higher priority
than other interrupt
requests simultaneously
generated?

Renesas RL78/G1H Specifications

General

Brand	Renesas
Model	RL78/G1H
Category	Microcontrollers
Language	English