EM78P808 datasheet(45/63 Pages) EMC

45 / 63 page

EM78808

8-bit Micro-controller

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* This specification is subject to change without notice.

8/1/2004 (V3.1)

VII.6 Interrupt

RF is the interrupt status register which records the interrupt request in flag bits. IOCF is the interrupt

mask register. TCC timer, Counter1 and Counter2 are internal interrupt source. P70 ~ P77(INT0 ~ INT1) are

external interrupt input which interrupt sources are come from the external. If the interrupts are happened by

these interrupt sources, then RF register will generate '1' flag to corresponding register if you enable IOCF

interrupts (when enabled) generated, will cause the next instruction to be fetched from address 008H. Once in

the interrupt service routine the source of the interrupt can be determined by polling the flag bits in the RF

enabling interrupts to avoid recursive interrupts.

EM78P808 Datasheet(PDF) 45 Page - ELAN Microelectronics Corp

EM78P808 Datasheet(HTML) 45 Page - ELAN Microelectronics Corp

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