LPS35HW datasheet(38/48 Pages) STMICROELECTRONICS

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LPS35HW

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8.12

RPDS_L_18h

Pressure offset (LSB data)

Table 28: RPDS_L (18h) register

RPDS7

RPDS6

RPDS5

RPDS4

RPDS3

RPDS2

RPDS1

RPDS0

RPDS[7:0]

This register contains the low part of the pressure offset value.

If, after the soldering of the component, a residual offset is still present, it can be removed

with a one-point calibration.

After the soldering, the measured offset can be stored in the Section 10.13:

"RPDS_H_19h" and Section 10.12: "RPDS_L_18h" registers and automatically subtracted

from the pressure output registers: the output pressure register PRESS_OUT (28h, 29h

and 2Ah) is provided as the difference between the measured pressure and the content of

the register 256*RPDS (18h, 19h)*.

*DIFF_EN = '0', AUTOZERO = '0', AUTORIFP = '0'

8.13

RPDS_H_19h

Pressure offset (MSB data)

Table 29: RPDS_H (19h) register

RPDS15

RPDS14

RPDS13

RPDS12

RPDS11

RPDS10

RPDS9

RPDS8

RPDS[15:8]

This register contains the high part of the pressure offset value.

Refer to Section 10.12: "RPDS_L_18h"

8.14

RES_CONF_1Ah

Low-power mode configuration

Table 30: RES_CONF (1Ah) register

0 (1)

0(1)

Reserved (2)

LC_EN

Notes:

(1)These bits must be set to ‘0’ for proper operation of the device.

(2)The content of this bit must not be modified for proper operation of the device

LC_EN (1)

Low current mode enable. Default 0.

0: Normal mode (low-noise mode); 1: Low-current mode).

Notes:

(1)The LC_EN bit must be changed only with the device in power down and not during operation. Once LC_EN bit

is configured, it affects both One-shot mode and Continuous mode.

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