UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 559

• Manufacturer Part Number: UPD784026
• Description: 16/8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

Interrupt request
No
held pending
default priority among
processing execution
macro service
Macro service
requests?
Highest
Figure 20-10 Interrupt Acknowledgment Processing Algorithm
Yes
CHAPTER 20 INTERRUPT FUNCTIONS
Yes
than other existing interrupt
than interrupt currently
priority among interrupt
Vectored interrupt
being serviced?
Higher priority
requests of same
Higher priority
Highest default
generation
requests?
priority?
CSE = 1
ISM = 1
IE = 1
MK = 0
IF = 1
Yes
Yes
No
Yes
Yes
Yes
Yes
No
Interrupt Request?
No
Interrupt Mask Released?
Macro Service?
No
Interrupt Enabled State?
Yes
Context Switching?
No
No
No
No
Context switching
generation
Interrupt request
held pending
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