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H8/3003 数据表(PDF) 266 Page - Renesas Technology Corp |
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H8/3003 数据表(HTML) 266 Page - Renesas Technology Corp |
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266 / 715 page  9.3.3 Pin Functions in Each Mode The functions of port 5 differ between modes 1 and 2 (1-Mbytes modes) and modes 3 and 4 (16-Mbyte modes). The pin functions in each mode are described below. Pin Functions in Modes 1 and 2 (1-Mbytes Modes): Input or output can be selected separately for each pin in port 5. A pin becomes an output pin if the corresponding P5DDR bit is set to 1 and an input pin if this bit is cleared to 0. Figure 9-5 shows the pin functions in modes 1 and 2. Figure 9-5 Pin Functions in Modes 1 and 2 (Port 5) Pin Functions in Modes 3 and 4 (16-Mbytes Modes): The pins in port 5 are automatically used for address output. Figure 9-6 shows the pin functions in modes 3 and 4. Figure 9-6 Pin Functions in Modes 3 and 4 (Port 5) Port 5 P5 (input/output) P5 (input/output) P5 (input/output) P5 (input/output) 7 6 5 4 Port 5 A (output) A (output) A (output) A (output) 23 22 21 20 248 |
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