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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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PC912XDP512F0MPVR 데이터시트(PDF) 846 Page - Freescale Semiconductor, Inc |
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PC912XDP512F0MPVR 데이터시트(HTML) 846 Page - Freescale Semiconductor, Inc |
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846 / 1348 page  Chapter 22 DP512 Port Integration Module (S12XDP512PIMV2) MC9S12XDP512 Data Sheet, Rev. 2.21 848 Freescale Semiconductor 22.3.2.30 Port M Data Register (PTM) Read: Anytime. Write: Anytime. Port M pins 75–0 are associated with the CAN0, CAN1, CAN2, CAN3, SCI3, as well as the routed CAN0, CAN4, and SPI0 modules. When not used with any of the peripherals, these pins can be used as general purpose I/O. 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. 76543210 R PTM7 PTM6 PTM5 PTM4 PTM3 PTM2 PTM1 PTM0 W CAN TXCAN3 RXCAN3 TXCAN2 RXCAN2 TXCAN1 RXCAN1 TXCAN0 RXCAN0 Routed CAN0 TXCAN0 RXCAN0 TXCAN0 RXCAN0 Routed CAN4 TXCAN4 RXCAN4 TXCAN4 RXCAN4 Routed SPIO SCK0 MOSI0 SS0 MISO0 Reset 00000000 Figure 22-32. Port M Data Register (PTM) Table 22-32. PTM Field Descriptions Field Description 7–6 PTM[7:6] The CAN3 function (TXCAN3 and RXCAN3) takes precedence over the CAN4, SCI3 and the general purpose I/O function if the CAN3 module is enabled. Refer to MSCAN section for details. The CAN4 function (TXCAN4 and RXCAN4) takes precedence over the SCI3 and the general purpose I/O function if the CAN4 module is enabled. Refer to MSCAN section for details. The SCI3 function (TXD3 and RXD3) takes precedence over the general purpose I/O function if the SCI3 module is enabled. Refer to SCI section for details. 5–4 PTM[5:4] The CAN2 function (TXCAN2 and RXCAN2) takes precedence over the routed CAN0, routed CAN4, the routed SPI0 and the general purpose I/O function if the CAN2 module is enabled{pim_9xd_prio.m}. The routed CAN0 function (TXCAN0 and RXCAN0) takes precedence over the routed CAN4, the routed SPI0 and the general purpose I/O function if the routed CAN0 module is enabled. The routed CAN4 function (TXCAN4 and RXCAN4) takes precedence over the routed SPI0 and general purpose I/O function if the routed CAN4 module is enabled. Refer to MSCAN section for details. The routed SPI0 function (SCK0 and MOSI0) takes precedence of the general purpose I/O function if the routed SPI0 is enabled. Refer to SPI section for details. |
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