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MRF89XA датащи(PDF) 25 Page - Microchip Technology |
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MRF89XA датащи(HTML) 25 Page - Microchip Technology |
25 / 140 page 2010-2017 Microchip Technology Inc. Preliminary DS70000622D-page 25 MRF89XA 2.11.2 SPI DATA Write Byte (before/during TX) - To write bytes into the FIFO, the timing diagram illustrated in Figure 2-14 should be followed by the host microcontroller. FIGURE 2-14: WRITE BYTES SEQUENCE (EXAMPLE DIAGRAM FOR 2 BYTES) Read Byte (after/during RX) - To read bytes from the FIFO, the timing diagram illustrated in Figure 2-15 should be followed by the host microcontroller. FIGURE 2-15: READ BYTES SEQUENCE (EXAMPLE DIAGRAM FOR 2 BYTES) Note: It is compulsory to toggle CSDAT back high between each byte written. The byte is pushed into the FIFO on the rising edge of CSDAT. SCK (In) SDI (In) SDO (Out) x D1(6) D1(5) D1(4) D1(3)D1(2) D1(1) D2(7) D2(6) D2(5) D2(4) D2(3) D2(2) D2(1) D2(0) D1(0) D1(7) HZ (input) HZ (input) HZ (input) CSDAT(In) x x x x x x x x x x x x x x x x x 1 5 4 3 2 6 8 7 15 4 3 26 8 7 1stbyte written 2ndbyte written Note: It is recommended to toggle CSDAT back high between each byte read. SCK (In) SDO (Out) D1(6) D1(5) D1(4) D1(3) D1(2) D1(1) D2(7) D2(6) D2(5) D2(4) D2(3) D2(2) D2(1) D2(0) D1(0) D1(7) HZ (input) HZ (input) SDI (In) x x x x x x x x x x x x x x x x HZ (input) CSDAT (In) 1 5 4 3 2 6 8 7 15 4 3 26 8 7 Second byte read x First byte read |
Аналогичный номер детали - MRF89XA |
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Аналогичное описание - MRF89XA |
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