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L9300 Datasheet(PDF) 99 Page - STMicroelectronics |
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L9300 Datasheet(HTML) 99 Page - STMicroelectronics |
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99 / 182 page  16 SPI interface and register mapping 16.1 SPI functional description The SPI interface is used to configure the device, control the outputs and read the diagnostic and status registers. The SPI interface comprises: • Supply: VDDIO • Inputs: SCLK, SDI, CS • Output: SDO The SPI Frame is hereafter described: Figure 62. SPI Frame SDI Frame (from Master SPI) SDO Frame (to Master SPI) 31 Wr/Rdn 15 Data Bit[12:0] 31 Short Frame Error 15 Data Bit[12:0] 30 Add[6:0] 14 30 Long Frame Error 14 29 13 29 CRC Error 13 28 12 28 Channel Exceptions[5:0] 12 27 11 27 11 26 10 26 10 25 9 25 9 24 8 24 8 23 Reserved = 0 7 23 7 22 Data[19:13] 6 22 Data[19:13] 6 21 5 21 5 20 4 20 4 19 3 19 3 18 2 CRC[2:0] 18 2 CRC[2:0] 17 1 17 1 16 0 16 0 GADG0708171218PS CRC error and frame length error are reported on SDO of the frame following the corrupted one. L9300 SPI interface and register mapping DS12258 - Rev 4 page 99/182 |
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