LSM303D datasheet(34/52 Pages) STMICROELECTRONICS

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LSM303D

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DocID023312 Rev 2

8.15

REFERENCE_Z (1Eh)

Reference value for high-pass filter for Z-axis acceleration data.

8.16

CTRL0 (1Fh)

8.17

CTRL1 (20h)

Table 32. CTRL0 register

BOOT

FIFO_EN

FTH_EN

0(1)

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

0(1)

HP_Click

HPIS1

HPIS2

Table 33. CTRL0 register description

BOOT

Reboot memory content. Default value: 0

(0: normal mode; 1: reboot memory content)

FIFO_EN

FIFO enable. Default value: 0

(0: FIFO disable; 1: FIFO enable)

FTH_EN

FIFO programmable threshold enable. Default value: 0

(0: disable; 1: enable)

HP_Click

High-pass filter enabled for click function. Default value: 0

(0: filter bypassed; 1: filter enabled)

HPIS1

High-pass filter enabled for interrupt generator 1. Default value: 0

(0: filter bypassed; 1: filter enabled)

HPIS2

High-pass filter enabled for interrupt generator 2. Default value: 0

(0: filter bypassed; 1: filter enabled)

Table 34. CTRL1 register

AODR3

AODR2

AODR1

AODR0

BDU

AZEN

AYEN

AXEN

Table 35. CTRL1 register description

AODR [3:0] Acceleration data-rate selection. Default value: 0000

(0000: Power-down mode; Others: Refer to Table 36)

BDU

Block data update for acceleration and magnetic data. Default value: 0

(0: continuous update; 1: output registers not updated until MSB and LSB have been

read)

AZEN

Acceleration Z-axis enable. Default value: 1

(0: Z-axis disabled; 1: Z-axis enabled)

AYEN

Acceleration Y-axis enable. Default value: 1

(0: Y-axis disabled; 1: Y-axis enabled)

AXEN

Acceleration X-axis enable. Default value: 1

(0: X-axis disabled; 1: X-axis enabled)

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