NEC 78K0R/KE3 User Manual page 579

(A) Internal maskable interrupt
<R>
(B) External maskable interrupt (INTPn)
INTPn pin
input
Remarks 1. IF:
CHAPTER 15 INTERRUPT FUNCTIONS
Figure 15-1. Basic Configuration of Interrupt Function (1/2)
MK
Interrupt
IF
request
External interrupt edge
enable register
(EGP, EGN)
Edge
detector
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
2. n = 0 to 11
Internal bus
IE PR1
Priority controller
Internal bus
MK IE
IF
User's Manual U17854EJ9V0UD
PR0 ISP1 ISP0
Vector table
address generator
Standby release
signal
PR1 PR0 ISP1 ISP0
Priority controller
address generator
Standby release
signal
Vector table
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