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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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ATmega325P 数据表(PDF) 80 Page - ATMEL Corporation |
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ATmega325P 数据表(HTML) 80 Page - ATMEL Corporation |
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80 / 364 page  80 8023F–AVR–07/09 ATmega325P/3250P 13.3.6 Alternate Functions of Port H Port H is only present in ATmega3250P. The alternate pin configuration is as follows: The alternate pin configuration is as follows: • PCINT23 – Port H, Bit 7 PCINT23, Pin Change Interrupt Source 23: The PH7 pin can serve as an external interrupt source. • PCINT22 – Port H, Bit 6 PCINT22, Pin Change Interrupt Source 22: The PH6 pin can serve as an external interrupt source. • PCINT21 – Port H, Bit 5 PCINT21, Pin Change Interrupt Source 21: The PH5 pin can serve as an external interrupt source. Table 13-15. Overriding Signals for Alternate Functions in PG4 and PG3 Signal Name PG4/T0 PG3/T1 PUOE 0 0 PUOV 0 0 DDOE 0 0 DDOV 0 0 PVOE 0 0 PVOV 0 0 PTOE – – DIEOE 0 0 DIEOV 0 0 DI T0 INPUT T1 INPUT AIO – – Table 13-16. Port H Pins Alternate Functions Port Pin Alternate Function PH7 PCINT23(Pin Change Interrupt23) PH6 PCINT22 (Pin Change Interrupt22) PH5 PCINT21(Pin Change Interrupt21) PH4 PCINT20(Pin Change Interrupt20) PH3 PCINT19 (Pin Change Interrupt19) PH2 PCINT18(Pin Change Interrupt18) PH1 PCINT17(Pin Change Interrupt17) PH0 PCINT16(Pin Change Interrupt16) |
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