Renesas RL78/G10 User Manual

RL78/G10 CHAPTER 14 INTERRUPT FUNCTIONS
R01UH0384EJ0311 Rev. 3.11 510
Dec 22, 2016
Figure 14-10. Interrupt Request Acknowledgment Processing Algorithm
Ye s
No
Ye s
No
Y
es
No
No
Ye s
No
IE = 1?
Vectored interrupt servicing
Start
xxIF = 1?
xxMK = 0?
(xxPR
1, xx PR 0)
< (ISP1, ISP0)
Yes (interrupt request generation)
Yes (High priority)
No (Low priority)
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
gener
ated?
Is default
priority
Note
higher than other
interrupt requests with the
same priority
simultaneously
generated?
××IF: Interrupt request flag
××MK: Interrupt mask flag
××PR0: Priority specification flag 0
××PR1: 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 14-9)
Note For the default priority, refer to Table 14-1 Interrupt Source List (10-pin Products).

Renesas RL78/G10 Specifications

General

Brand	Renesas
Model	RL78/G10
Category	Motherboard
Language	English