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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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VNF1048F Fiches technique(PDF) 22 Page - STMicroelectronics |
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VNF1048F Fiches technique(HTML) 22 Page - STMicroelectronics |
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22 / 49 page  6 SPI functional description 6.1 SPI Communication The SPI communication is based on the “ST-SPI Specification”. The device operates in Slave mode on a bus configuration through CSN, SDI, SDO and SCK signal lines, with 32 bits SPI frames. A SPI Master device (Host Microcontroller) initiates the communication. The SPI Master device must be configured in the following mode: CPOL = 0, CPHA = 0 Input data are shifted into SDI, MSB first while output data are shifted out on SDO, MSB first. Figure 9. SPI functional diagram LSB LSB MSB MSB VNF1048F Slave µC SPI Master SDI SDO CSN SCK SDI SDO CSN SCK CS1 CS2 CSN2 CSN1 SCK SDI SDO SCK SDI SDO BUS master SPI interface with CPOL = 0 CPHA = 0 VNF1048F VNF1048F VNF1048F SPI functional description DS13084 - Rev 8 page 22/49 |
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