Putting Interrupt Requests On Hold - NEC UPD789426 Series User Manual

8-bit single-chip microcontrollers

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14.4.4 Putting interrupt requests on hold

If an interrupt request (such as a maskable, non-maskable, or external interrupt) is generated when a certain type

of instruction is being executed, the interrupt request will not be acknowledged until the instruction is completed. Such

instructions (interrupt request pending instructions) are as follows.

• Instructions that manipulate interrupt request flag registers 0, 1 (IF0 and IF1)

• Instructions that manipulate interrupt mask flag registers 0, 1 (MK0 and MK1)

CHAPTER 14 INTERRUPT FUNCTIONS

User's Manual U15075EJ2V1UD