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UPD70F3201 Datasheet(PDF) 31 Page - NEC |
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UPD70F3201 Datasheet(HTML) 31 Page - NEC |
31 / 98 page ![]() Preliminary Product Information U15436EJ1V0PM 31 µµµµPD703201, 703201Y, 703204, 703204Y, 70F3201, 70F3201Y, 70F3204, 70F3204Y 6. INTERRUPT SERVICING/EXCEPTION PROCESSING FUNCTION The features of the interrupt servicing/exception processing function are as follows. Interrupt • Non-maskable interrupt: 2 sources • Maskable interrupt µPD703201, 70F3201: External 8, internal 30 sources µPD703201Y, 70F3201Y: External 8, internal 31 sources µPD703204, 70F3204: External 8, internal 31 sources µPD703204Y, 70F3204Y: External 8, internal 32 sources • 8-level programmable priority control • Mask specification for the interrupt request according to priority • Mask specification for each maskable interrupt request • Noise elimination, edge detection, and valid edge specification of an external interrupt request Exceptions • Software exception: 32 sources • Exception trap: 2 sources (illegal op code exception, debug trap) Table 6-1 shows the interrupt/exception sources. |
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