FXLS93333 datasheet(143/254 Pages) NXP

143 / 254 page

NXP Semiconductors

FXLS9xxxx

Dual channel inertial sensor

Where:

TDEGC

TLSB

T0LSB

TSENSE

The temperature output in degrees C

The temperature output in LSB

The expected temperature output in LSB at 0 C

The expected temperature sensitivity in LSB/C

Data reading

T0LSB

(LSB)

TSENSE

(LSB/C)

8-bit Register Read

TSENSE

16-bit Register Read

17408

TSENSE * 256

16-bit DSI3 PDCM Sensor Data

17408

TSENSE * 256

16-bit SPI Sensor Data

17408

TSENSE * 256

16-bit PSI5 Sensor Data

–1728

TSENSE * 64

12-bit DSI3 PDCM Sensor Data

1100

TSENSE * 16

12-bit SPI Sensor Data

1100

TSENSE * 16

10-bit DSI3 PDCM Sensor Data

276

TSENSE * 4

10-bit PSI5 Sensor Data

–27

TSENSE

Table 220. Temperature sensor output scaling equation variables

11.8 PCM output function

The device provides the option for a PCM output function. The PCM output is enabled

if the ARM_CFG bits in the CHx_CF-G_U4 registers are configured for PCM output.

Selecting the PCM output enables the following functions:

• The non-interpolated sensor data output as defined in the DATATYPE0 bits in the

Chx_CFG_U3 register is saturated to 10-bits as shown in Section 11.6.4.9 and

converted to an unsigned value.

• The 10-bit sensor value is input into a summer clocked at 10 MHz.

• The carry from the summer circuit is output to the PCM pin.

A block diagram of the PCM output is shown in Figure 55.

aaa-030638

10 bit ADDER

CARRY

SUM

fCLK

DSPout [20:11]

as defined in DATATYPE0

PCM

CLK

Figure 55. PCM output function block diagram

FXLS9xxxx

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Product data sheet

Rev. 6 — 8 February 2021

143 / 254

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