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7630 Datasheet(PDF) 72 Page - Renesas Technology Corp |
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7630 Datasheet(HTML) 72 Page - Renesas Technology Corp |
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72 / 238 page  APPLICATION 2.1 I/O ports 2-6 7630 Group User’s Manual Fig. 2.1.8 Structure of Polarity control register Polarity control register b7 b6 b5 b4 b3 b2 b1 b0 B Function At reset RW 0 1 2 3 Name Key-on wake-up polarity control bit CAN module dominant level control bit (Note) 0 0 ? Polarity control register (PCON) [Address : 002F16] 0: Low level active (P4 pull-up) 1: High level active (P4 pull-down) 0: Low level dominant (P32 pull-up) 1: High level dominant (P32 pull-down) Not used (undefined when read.) 4 5 6 7 ? ? ? ? ? Note: The selected dominant level also controls the polarity of the pull-transistor enabled by the P32 pull-up/down transistor control bit (bit 2 of the Port P3 pull-up control register), the transistor pulling toward the recessive level is selected. |
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