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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SC312XDP512F0MPVR датащи(PDF) 859 Page - Freescale Semiconductor, Inc |
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SC312XDP512F0MPVR датащи(HTML) 859 Page - Freescale Semiconductor, Inc |
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859 / 1348 page  Chapter 22 DP512 Port Integration Module (S12XDP512PIMV2) MC9S12XDP512 Data Sheet, Rev. 2.21 Freescale Semiconductor 861 22.3.2.46 Port H Data Register (PTH) Read: Anytime. Write: Anytime. Port H pins 7–0 are associated with the SCI4 and SCI5 as well as the routed SPI1 and SPI2 modules. These pins can be used as general purpose I/O when not used with any of the peripherals. If the data direction bits of the associated I/O pins are set to logic level “1”, a read returns the value of the port register, otherwise the buffered pin input state is read. The routed SPI2 function takes precedence over the SCI4 and SCI5 and the general purpose I/O function if the routed SPI2 module is enabled. Refer to SPI section for details. The routed SPI1 function takes precedence over the general purpose I/O function if the routed SPI1 is enabled. Refer to SPI section for details. The SCI4 and SCI5 function takes precedence over the general purpose I/O function if the SCI4 or SCI5 is enabled. Refer to SCI section for details. 76543210 R PTH7 PTH6 PTH5 PTH4 PTH3 PTH2 PTH1 PTH0 W Routed SPI SS2 SCK2 MOSI2 MISO2 SS1 SCK1 MOSI1 MISO1 Reset 00000000 Figure 22-48. Port H Data Register (PTH) |
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