MMA8652FC datasheet(57/65 Pages) NXP

57 / 65 page

MMA8652FC

Sensors

Freescale Semiconductor, Inc.

6.13

Data calibration registers

The 2’s complement offset correction registers values are used to realign the Zero-g position of the X, Y, and Z-axis after the

device is mounted on a board. The resolution of the offset registers is 1.96 mg/LSB. The 2’s complement 8-bit value would result

in an offset compensation range ±250 mg for each axis.

6.13.1

0x2F: OFF_X Offset Correction X register

6.13.2

0x30: OFF_Y Offset Correction Y register

6.13.3

0x31: OFF_Z Offset Correction Z register

Table 108. 0x2F OFF_X register (Read/Write)

Back to Register Address Map

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Table 109. OFF_X register

Bit(s)

Field

Description

7–0

D[7:0]

X-axis offset value

0000_0000 (default)

Table 110. 0x30 OFF_Y register (Read/Write)

Back to Register Address Map

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Table 111. OFF_Y register

Bit(s)

Field

Description

7–0

D[7:0]

Y-axis offset value

0000_0000 (default)

Table 112. 0x31 OFF_Z register (Read/Write)

Back to Register Address Map

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Table 113. OFF_Z register

Bit(s)

Field

Description

7–0

D[7:0]

Z-axis offset value

0000_0000 (default)

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