Single-Chip Microcontrollers User's Manual

CHAPTER 11 INSTRUCTION SET
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User’s Manual U10676EJ3V0UM
11.4.12 Interrupt control instructions
EI
Function: IME (IPS.3) ← 1
Sets the interrupt mask enable flag (bit 3 of the interrupt priority select register) to “1” to enable interrupts.
Acknowledging an interrupt is controlled by an interrupt enable flag corresponding to the interrupt.
EI IE×××
Function: IE××× ← 1 ××× = N5, N2-0
Sets a specified interrupt enable flag (IE×××) to “1” to enable acknowledging the corresponding interrupt (××× =
BT, T0, T1, T2, 0, 2, or EE).
DI
Function: IME (IPS.3) ← 0
Resets the interrupt mask enable flag (bit 3 of the interrupt priority select register) to “0” to disable all interrupts,
regardless of the contents of the respective interrupt enable flags.
DI IE×××
Function: IE××× ← 1 ××× = N5, N2-0
Resets a specified interrupt enable flag (IE×××) to “0” to disable acknowledging the corresponding interrupt (×××
= BT, T0, T1, T2, 0, 2, or EE).