FXPS7115D4S datasheet(27/74 Pages) NXP

27 / 74 page

NXP Semiconductors

FXPS7115D4S

Digital absolute pressure sensor, 40 kPa to 115 kPa

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

7.5.6 SPI timing diagram

aaa-023749

DSP Out

SS_B

SCLK

MISO

MOSI

tDISABLE

tCLKSS

tLAT

tSSN

tSSCLK

tSCLKH

tSCLKF

tSCLKR

tSCLK

tLEAD

tLAG

tHOLD_IN

tHOLD_OUT

tVALID

tSCLKL

tACCESS

tSETUP

Figure 22. SPI timing diagram

7.6 User-accessible data array

A user-accessible data array allows each device to be customized. The array consists

of a one time programmable (OTP) factory-programmable block, an OTP user-

programmable block, and read-only registers for data and device status. The OTP blocks

incorporate independent data verification. In order to perform the OTP, a custom platform

is typically used prior to PCB assembly since the VPP voltage required is much higher

than the nominal supply as shown in Table 103. See application note AN12727[3].

FXPS7115D4S

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

Objective data sheet

Rev. 1 — 9 August 2022

27 / 74

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