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CSG14K_CSG8K 数据表(PDF) 28 Page - OSRAM GmbH |
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CSG14K_CSG8K 数据表(HTML) 28 Page - OSRAM GmbH |
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28 / 114 page ![]() Document Feedback CSG14K_CSG8K Functional Description Datasheet • PUBLIC DS000571 • v2-01 • 2023-Feb-10 113 │ 27 Figure 20: SPI with 1 Master and 3 Slaves An SPI access always consists of the transfer of the following bits (in this order), as given in Figure 20 Figure 21: SPI Bits Transfer Sequence Phase # Bits Via Purpose CTRL 1 SPI_MOSI Control bit indicating SPI access direction (1 for write, 0 for read) ADDR 7 SPI_MOSI Address (0-127) of register to be accessed DATA N*8 SPI_MOSI SPI_MISO Data written to N consecutive register addresses, starting at ADDR Data read from N consecutive register addresses, starting at ADDR Via a burst mode, it is possible to write/read multiple consecutive register addresses with a single address upload. The state of SPI_CLK whenever SPI_CSN is high is ignored, though it is advised to stop the clock to save unnecessary power consumption. SPI MASTER SPI SLAVE SPI_CLK SPI_MOSI SPI_MISO SPI_CSN SPI_CLK SPI_MOSI SPI_MISO SPI_CSN_1 SPI SLAVE SPI_CLK SPI_MOSI SPI_MISO SPI_CSN SPI SLAVE SPI_CLK SPI_MOSI SPI_MISO SPI_CSN SPI_CSN_2 SPI_CSN_3 |
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