NEC 78K0 User Manual page 431

(A) Internal maskable interrupt
Interrupt
request
(B) External maskable interrupt (INTP0 to INTP7)
External interrupt edge
enable register
(EGP, EGN)
Interrupt
request
IF: Interrupt request flag
IE: Interrupt enable flag
ISP: In-service priority flag
MK: Interrupt mask flag
PR: Priority specification flag
CHAPTER 19 INTERRUPT FUNCTIONS
Figure 19-1. Basic Configuration of Interrupt Function (1/2)
Internal bus
MK
IF
Internal bus
MK
Edge
IF
detector
User's Manual U15947EJ2V0UD
IE PR ISP
Vector table
Priority controller
address generator
IE PR ISP
*
Priority controller
Standby release signal
Vector table
address generator
Standby release signal
431