IIS2DULPX datasheet(56/106 Pages) STMICROELECTRONICS

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8.32

OUT_T_AH_QVAR_L (2Eh)

Table 85. OUT_T_AH_QVAR_L register

OUTT7

OUTT6

OUTT5

OUTT4

OUTT3

OUTT2

OUTT1

OUTT0

Table 86. OUT_T_AH_QVAR_L register description

OUTT[7:0]

LSBs of temperature/AH/Qvar data output. The four least significant bits are always zero since the data is in 12-bit

format.

8.33

OUT_T_AH_QVAR_H (2Fh)

Table 87. OUT_T_AH_QVAR_H register

OUTT15

OUTT14

OUTT13

OUTT12

OUTT11

OUTT10

OUTT9

OUTT8

Table 88. OUT_T_AH_QVAR_H register description

OUTT[15:8]

MSBs of temperature/AH/Qvar data output

8.34

AH_QVAR_CFG (31h)

R/W

Table 89. AH_QVAR_CFG register

AH_QVAR_EN

AH_QVAR_

NOTCH_EN

AH_QVAR_

NOTCH_CUTOFF

AH_QVAR_

C_ZIN_1

AH_QVAR_

C_ZIN_0

AH_QVAR_

GAIN_1

AH_QVAR_

GAIN_0

Table 90. AH_QVAR_CFG register description

AH_QVAR_EN

Enables the analog hub and Qvar chain. When this bit is set to 1, the analog hub and Qvar buffers are

connected to the INT1 and INT2 pins. Default value: 0

(0: disabled; 1: enabled)

AH_QVAR_NOTCH_EN

Enables notch filter in the analog hub / Qvar reading chain (compatible with low-power mode and high-

performance mode only). The cutoff of the filter is selected by the AH_QVAR_NOTCH_CUTOFF bit. Default

value: 0

(0: disabled; 1: enabled)

AH_QVAR_NOTCH_CUTOFF

Selects the cutoff frequency of the notch filter in the analog hub / Qvar reading chain. Default value: 0

(0: 50 Hz;

1: 60 Hz)

AH_QVAR_C_ZIN_[1:0]

Configures the equivalent input impedance of the analog hub and Qvar buffers:

(00: 1100 MΩ;

01: 570 MΩ;

10: 380 MΩ;

11: 90 MΩ)

AH_QVAR_GAIN_[1:0]

Analog hub / Qvar input output gain:

(00: 0.5;

01: 1;

10: 2;

11: 4)

IIS2DULPX

DS14580 - Rev 1

page 56/106

IIS2DULPX Datasheet(PDF) 56 Page - STMicroelectronics

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