NEC PD75P402 Manual do Utilizador descarregar pdf (Página 185)

174

CHAPTER 9. INSTRUCTION SET

9.4.11 Interrupt Control Instructions

Function: IME ← 1

Sets the interrupt master enable flag (1), and enables interrupts. Whether or not interrupts are accepted is

determined by each interrupt enable flag.

EI IEXXX

Function: IE××× ← 1; ××× = N2 to N0

Sets the interrupt enable flag (IE×××) (1), and enables the interrupt. (××× = BT, CSI, 0, 2)

Function: IME ← 0

Resets the interrupt master enable flag and disables interrupts regardless of the contents of each interrupt

enable flag.

DI IEXXX

Function: IE××× ← 0; ××× = N2 to N0

Resets the interrupt enable flag (IE×××) (0), and disables the interrupt. (××× = BT, CSI, 0, 2)

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NEC PD75P402 Manual do Utilizador Página 185