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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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PC912XDP512F0MPVR 데이터시트(PDF) 1001 Page - Freescale Semiconductor, Inc |
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PC912XDP512F0MPVR 데이터시트(HTML) 1001 Page - Freescale Semiconductor, Inc |
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1001 / 1348 page  This register configures whether a pull-up or a pull-down device is activated, if the port is used as input. This bit has no effect if the port is used as output. Out of reset no pull device is enabled. 24.0.5.18 Port T Polarity Select Register (PPST) Read: Anytime. Write: Anytime. This register selects whether a pull-down or a pull-up device is connected to the pin. 24.0.5.19 Port S Data Register (PTS) Read: Anytime. Write: Anytime. Table 24-21. PERT Field Descriptions Field Description 7–0 PERT[7:0] Pull Device Enable Port T 0 Pull-up or pull-down device is disabled. 1 Either a pull-up or pull-down device is enabled. 76543210 R PPST7 PPST6 PPST5 PPST4 PPST3 PPST2 PPST1 PPST0 W Reset 00000000 Figure 24-20. Port T Polarity Select Register (PPST) Table 24-22. PPST Field Descriptions Field Description 7–0 PPST[7:0] Pull Select Port T 0 A pull-up device is connected to the associated port T pin, if enabled by the associated bit in register PERT and if the port is used as input. 1 A pull-down device is connected to the associated port T pin, if enabled by the associated bit in register PERT and if the port is used as input. 76543210 R PTS7 PTS6 PTS5 PTS4 PTS3 PTS2 PTS1 PTS0 W SCI/SPI SS0 SCK0 MOSI0 MISO0 TXD1 RXD1 TXD0 RXD0 Reset 00000000 Figure 24-21. Port S Data Register (PTS) |
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