RL78/G1P
CHAPTER 15 INTERRUPT FUNCTIONS
R01UH0895EJ0100 Rev.1.00
577
Nov 29, 2019
Figure 15-1. Basic Configuration of Interrupt Function
(A) Internal maskable interrupt
IF
MK
IE
PR1
ISP1
PR0
ISP0
Internal bus
Interrupt
request
Priority controller
Vector table
address generator
Standby release
signal
(B) External maskable interrupt (INTPn)
IF
MK
IE
PR1
ISP1
PR0
ISP0
Internal bus
External interrupt edge
enable register
(EGP, EGN)
INTPn pin input
Edge
detector
Priority controller
Vector table
address generator
Standby release
signal
(C) Software interrupt
Vector table
address generator
Internal bus
Interrupt
request
IF:
Interrupt request flag
IE:
Interrupt enable flag
ISP0:
In-service priority flag 0
ISP1:
In-service priority flag 1
MK:
Interrupt mask flag
PR0:
Priority specification flag 0
PR1:
Priority specification flag 1
Remark
n = 0 to 5