UPD75212ACW データシートの表示（PDF） - NEC => Renesas Technology

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UPD75212ACW

4-BIT SINGLE-CHIP MICROCOMPUTER

NEC => Renesas Technology 

µPD75212A

6. INTERRUPT FUNCTIONS

The µPD75212A has eight types of interrupt sources and can generate multiple interrupts with priority order.

It is also equipped with two types of test sources. INT2 is an edge detected testable input.

The µPD75212A interrupt control circuit has the following functions:

• Hardware-controller vectored interrupt function which can control interrupt acknowledge with the interrupt

enable flag (IE×××) and the interrupt master enable flag (IME).

• Function of setting any interrupt start address.

• Multiple interrupt function which can specify priority order with the interrupt priority select register (IPS).

• Interrupt request flag (IRQ×××) test function. (Interrupt generation can be checked by software.)

• Standby mode release function. (Interrupt to be released by interrupt enable flag can be selected.)

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