upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 226

• Manufacturer Part Number: upd70f3422gj-gae-qs-ax
• Description: 32-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

Chapter 5
226
(1)
(2)
Acknowledgment of maskable interrupts in service program
Service program of maskable interrupt or exception
Generation of exception in service program
Service program of maskable interrupt or exception
Preliminary User’s Manual U17566EE1V2UM00
...
...
• EIPC saved to memory or register
• EIPSW saved to memory or register
• EI instruction (interrupt acknowledgment enabled)
...
...
• DI instruction (interrupt acknowledgment disabled)
• Saved value restored to EIPSW
• Saved value restored to EIPC
• RETI instruction
...
...
• EIPC saved to memory or register
• EIPSW saved to memory or register
...
• TRAP instruction
...
• Saved value restored to EIPSW
• Saved value restored to EIPC
• RETI instruction
...
Higher priority maskable interrupt
acknowledgment
...
...
TRAP/exception acknowledgment
...
Interrupt Controller (INTC)