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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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UPD750064CU 데이터시트(PDF) 35 Page - NEC |
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UPD750064CU 데이터시트(HTML) 35 Page - NEC |
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35 / 82 page  35 µPD750064, 750066, 750068, 750064(A), 750066(A), 750068(A) Data Sheet U10165EJ2V0DS00 7. INTERRUPT FUNCTION AND TEST FUNCTION The µPD750068 has seven interrupt sources and two test sources. One test source, INT2, has two types of edge detection testable inputs. The interrupt control circuit of the µPD750068 has the following functions. (1) Interrupt function • Vectored interrupt function for hardware control, enabling/disabling the interrupt acceptance 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. A release interrupt can be selected by the interrupt enable flag. (2) Test function • Test request flag (IRQ ×××) generation can be checked by software. • Release the standby mode. The test source to be released can be selected by the test enable flag. |
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