upd75212a Renesas Electronics Corporation., upd75212a Datasheet - Page 28

• Manufacturer Part Number: upd75212a
• Description: 4-bit Single-chip Microcomputer
• Manufacturer: Renesas Electronics Corporation.

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6. INTERRUPT FUNCTIONS
The PD75212A 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 PD75212A interrupt control circuit has the following functions:
Hardware-controller vectored interrupt function which can control interrupt acknowledge with the interrupt
enable flag (IE
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
Standby mode release function. (Interrupt to be released by interrupt enable flag can be selected.)
) and the interrupt master enable flag (IME).
) test function. (Interrupt generation can be checked by software.)
PD75212A