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H8/3003 数据表(PDF) 296 Page - Renesas Technology Corp |
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H8/3003 数据表(HTML) 296 Page - Renesas Technology Corp |
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296 / 715 page  9.10.3 Pin Functions The port C pins are also used for DMA controller input and output (DREQ3, TEND3, DREQ2, TEND2), CS7 to CS4 output, and IRQ7 and IRQ6 input. Table 9-18 describes the selection of functions of pins PC7 to PC2. Table 9-18 Port C Pin Functions Pin Pin Functions and Selection Method PC7/IRQ7 Bit PC7DDR selects the pin function as follows PC7DDR 0 1 Pin function PC7 input PC7 output IRQ7 input PC6/IRQ6 Bit PC6DDR selects the pin function as follows PC6DDR 0 1 Pin function PC6 input PC6 output IRQ6 input PC5/DREQ3/CS7 DMAC channel 3 settings (bits DTS2/1/0A and DTS2/1/0B in DTCR3A and DTCR3B) and bit PC5DDR in PCDDR select the pin function as follows PC5DDR 0 1 Pin function PC5 input CS7 output DREQ3 input* Note: * DREQ3 input under DMAC channel 3 settings 1 in the table below. DMAC channel 3 settings 21 2 121 DTS2A, DTS1A Not both 1 Both 1 DTS0A — 00111 DTS2B 01101011 DTS1B — 0 1 — — — 0 1 278 |
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