Renesas RL78/G1P Hardware User Manual page 604

RL78/G1P
Figure 15-7. Interrupt Request Acknowledgment Processing Algorithm
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 15-6)
Note For the default priority, see Table 15-1 Interrupt Source List.
R01UH0895EJ0100 Rev.1.00
Nov 29, 2019
Start
No
××IF = 1?
Yes (interrupt request generation)
No
××MK = 0?
Yes
××PR
(××PR
1, 0)
≥
(ISP1, ISP0)
Higher priority
than other interrupt requests
simultaneously
generated?
Yes
Note
Higher default priority
than other interrupt requests
simultaneously
generated?
Yes
No
IE = 1?
Yes
Vectored interrupt servicing
CHAPTER 15 INTERRUPT FUNCTIONS
Interrupt request held pending
No (Low priority)
Interrupt request held pending
No
Interrupt request held pending
No
Interrupt request held pending
Interrupt request held pending
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