Datasheet

CHAPTER 17 INTERRUPT FUNCTIONS
User’s Manual U18698EJ1V0UD
438
Figure 17-1. Basic Configuration of Interrupt Function (1/2)
(A) Internal maskable interrupt
Internal bus
Interrupt
request
IF
MK IE PR ISP
Priority controller
Vector table
address generator
Standby release signal
(B) External maskable interrupt (INTP0 to INTP3)
Internal bus
Interrupt
request
IF
MK IE PR ISP
Priority controller
Vector table
address generator
Standby release signal
External interrupt edge
enable register
(EGP, EGN)
Edge
detector
IF: Interrupt request flag
IE: Interrupt enable flag
ISP: In-service priority flag
MK: Interrupt mask flag
PR: Priority specification flag