Interrupt Function And Test Function - NEC MuPD754202 Datasheet

7.

INTERRUPT FUNCTION AND TEST FUNCTION

The µ PD754202 is provided with five types of interrupt sources and one test source to enable a variety of
applications.
The interrupt control circuit of the µ PD754202 has the following functions.
(1) Interrupt function
• Vectored interrupt function for hardware control, enabling/disabling the interrupt acknowledgement by
the interrupt enable flag (IE×××) and interrupt master enable flag (IME).
• Can set any interrupt start address.
• Multiple interrupts wherein the order of priority can be specified by the interrupt priority select register
(IPS).
• Test function of interrupt request flag (IRQ×××). An interrupt generated can be checked by software.
• Release the standby mode. The interrupt to be released can be selected by the interrupt enable flag.
(2) Test function
• Test request flag (IRQ2) generation can be checked by software.
• Release the standby mode. The test source to be released can be selected by the test enable flag.
µ PD754202, 754202(A)
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