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AS5050A Datasheet(PDF) 15 Page - ams AG |
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AS5050A Datasheet(HTML) 15 Page - ams AG |
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15 / 31 page  ams Datasheet Page 15 [v2-06] 2014-Oct-14 Document Feedback AS5050A − SPI Interface SPI Read Data Frame Figure 16: SPI Read Data Frame The data is sent from the AS5050A to the microcontroller on the MISO output. The parity bit PAR is calculated for the upper 15 bits. If an error is detected in the previous SPI command frame, the EF bit is set. The addressed register is sampled on the rising edge of CSn and the data is transmitted on MISO with the next read command, as shown in Figure 17. Figure 17: SPI Read Bit 15 1413121110 9 8 7 6 5 4 3 2 1 0 Data 15:2 EF PAR Bit Name Description 15:2 Data 14 bit read data 1 EF 0 = no command frame error occurred, 1 = error occurred 0 PAR Parity bit (even) calculated on the upper 15 bits Read ADD[n] Read ADD[k] CSn Read ADD[p] Data ADD[n] Data ADD[p] Read ADD[m] Data ADD[k] Command Command Command Command Data Data Data MOSI MISO |
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