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H8/3003 Datasheet(PDF) 274 Page - Renesas Technology Corp |
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H8/3003 Datasheet(HTML) 274 Page - Renesas Technology Corp |
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274 / 715 page  9.6.3 Pin Functions The port 8 pins are also used for CS3 to CS0 and RFSH output and IRQ3 to IRQ0 input. Table 9-10 describes the selection of pin functions. Table 9-10 Port 8 Pin Functions Pin Pin Functions and Selection Method P84/CS0 Bit P84DDR selects the pin function as follows P84DDR 0 1 Pin function P84 input CS0 output P83/CS1/IRQ3 Bit P83DDR selects the pin function as follows P83DDR 0 1 Pin function P83 input CS1 output IRQ3 input P82/CS2/IRQ2 Bit P82DDR selects the pin function as follows P82DDR 0 1 Pin function P82 input CS2 output IRQ2 input P81/CS3/IRQ1 Bit P81DDR selects the pin function as follows P81DDR 0 1 Pin function P81 input CS3 output IRQ1 input P80/RFSH/IRQ0 Bit RFSHE in RFSHCR and bit P80DDR select the pin function as follows RFSHE 0 1 P80DDR 0 1 — Pin function P80 input P80 output RFSH output IRQ0 input 256 |
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