UPD78F0138 NEC, UPD78F0138 Datasheet - Page 363

• Manufacturer Part Number: UPD78F0138
• Description: (UPD78xxxx) 8-Bit Single-Chip Microcontrollers
• Manufacturer: NEC

(A) Internal maskable interrupt
(B) External maskable interrupt (INTP0 to INTP7)
IF:
IE:
ISP:
MK:
PR:
Interrupt
request
Interrupt request flag
Interrupt enable flag
In-service priority flag
Interrupt mask flag
Priority specification flag
Interrupt
request
External interrupt edge
enable register
(EGP, EGN)
Edge
detector
Figure 17-1. Basic Configuration of Interrupt Function (1/2)
IF
CHAPTER 17 INTERRUPT FUNCTIONS
MK
IF
User’s Manual U16228EJ2V0UD
Internal bus
MK
Internal bus
IE
Priority controller
IE
PR
Priority controller
PR
ISP
ISP
Vector table
address generator
Vector table
address generator
Standby release signal
Standby release signal
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