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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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FXPS7115D4S датащи(PDF) 19 Page - NXP Semiconductors |
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FXPS7115D4S датащи(HTML) 19 Page - NXP Semiconductors |
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19 / 72 page  NXP Semiconductors FXPS7115D4S Digital absolute pressure sensor, 40 kPa to 115 kPa 7.5.2 SPI response format MSB: bit 31; LSB: bit 0 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Response to Register Request Command Basic Status Unused Data 0h Register data: contents of RA[7:1] high byte Register data: contents of RA[7:1] low byte 8-bit CRC C[0], [3:1] ST[1:0] 0 0 RD[15:8] RD[7:0] CRC[7:0] Response to Sensor Data Request Command Basic Status Sensor Data Detail Status 8-bit CRC C[0], [3:1] ST[1:0] SD[11:0] Optional SD resolution SF[1:0] CRC[7:0] Error Response to Register Request Command Basic Status Unused Data = 0000h Detail Status 8-bit CRC C[0], [3:1] 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 SF[1:0] CRC[7:0] Error Response to Sensor Data Request With Sensor Data Command Basic Status Sensor Data Detail Status 8-bit CRC C[0], [3:1] 1 1 SD[11:0] Optional SD resolution SF[1:0] CRC[7:0] Error Response to Sensor Data Request Without Sensor Data Command Basic Status x Unused Data = 0000h Detail Status 8-bit CRC 0 0 0 0 1 1 x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 SF[1:0] CRC[7:0] Table 12. SPI response format 7.5.3 Command summary 7.5.3.1 Register read command The device supports a register read command. The register read command uses the upper 7 bits of the addresses defined in Section 7.6 "User-accessible data array" to address 8-bit registers in the register map. The response to a register read command is shown in Section 7.5.3.1.2 "Register read response message format". The response is transmitted on the next SPI message if and only if all of the following conditions are met: • No SPI error is detected (see Section 7.5.5.3 "SPI error" ) • No MISO error is detected (see Section 7.5.5.4 "SPI data output verification error") If these conditions are met, the device responds to the register read request as shown in Section 7.5.3.1.2 "Register read response message format". Otherwise, the device responds with the error response as defined in Section 7.5.5.2 "Detailed status field". The register read response includes the register contents at the rising edge of SS_B for the register read command. FXPS7115D4S All information provided in this document is subject to legal disclaimers. © 2023 NXP B.V. All rights reserved. Objective data sheet Rev. 1.2 — 28 June 2023 19 / 72 |
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