CHAPTER 14 INTERRUPT FUNCTIONS
Preliminary User’s Manual U16846EJ1V0UD
279
Figure 14-1. Basic Configuration of Interrupt Function
(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 INTP5)
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
(C) Software interrupt
Internal bus
Interrupt
request
Priority controller
Vector table
address generator
IF:
Interrupt request flag
IE:
Interrupt enable flag
ISP:
In-service priority flag
MK:
Interrupt mask flag
PR:
Priority specification flag