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RL78/G1A CHAPTER 16 INTERRUPT FUNCTIONS
Figure 16-1. Basic Configuration of Interrupt Function (1/2)
(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
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 25, 32-pin: n = 0 to 4
48-pin: n = 0 to 6, 8, 9
64-pin: n = 0 to 11
R01UH0305EJ0200 Rev.2.00 692
Jul 04, 2013