FXPS7115D4 datasheet(26/72 Pages) NXP

26 / 72 page

NXP Semiconductors

FXPS7115D4

Digital absolute pressure sensor, 40 kPa to 115 kPa

• The number of SCLK rising edges detected while SS_B is asserted is not equal to 16.

• SCLK is high when SS_B is deasserted.

• CRC error is detected (MOSI).

• A register write command to any register other than the DEVLOCK_WR register is received while ENDINIT is

set.

If a SPI error is detected, the device responds with the error response as described in Section 7.5.5.2 "Detailed

status field" with the detailed status field set to “SPI Error” as defined in Section 7.5.5.1 "Basic status field".

7.5.5.4 SPI data output verification error

The device includes a function to verify the integrity of the data output to the MISO pin. The function compares

the data transmitted on the MISO pin to the data intended to be transmitted. If any one bit does not match, a

SPI MISO mismatch fault is detected and the MISO_ERR flag in the DEVSTAT2 register is set.

If a valid sensor data request message is received during the SPI transfer with the MISO mismatch failure, the

request is ignored and the device responds with the error response as described in Section 7.5.5.2 "Detailed

status field" with the detailed status field set to “SPI Error” as defined in Section 7.5.5.1 "Basic status field"

during the subsequent SPI message.

If a valid register write request message is received during the SPI transfer with the MISO mismatch

failure, the register write is completed as requested, but the device responds with the error response as

described in Section 7.5.5.2 "Detailed status field" with the detailed status field set to “SPI Error” as defined in

Section 7.5.5.1 "Basic status field" during the subsequent SPI message.

If a valid register read request message is received during the SPI transfer with the MISO mismatch failure,

the register read is ignored and the device responds with the error response as described in Section 7.5.5.2

"Detailed status field" with the detailed status field set to “SPI Error” as defined in Section 7.5.5.1 "Basic status

field", during the subsequent SPI message.

aaa-023748

D Q

MISO ERR

SCLK

MISO

DATA OUT BUFFER

SPI DATA OUT SHIFT REGISTER

D Q

Figure 21. SPI data output verification

FXPS7115D4

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 6.2 — 28 June 2023

26 / 72

FXPS7115D4 датащи(PDF) 26 Page - NXP Semiconductors