MMA8652FC datasheet(51/77 Pages) FREESCALE

Part #	MMA8652FC

Description	Xtrinsic MMA8652FC 3-Axis, 12-bit Digital Accelerometer

PDF	77 Pages

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Manufacturer	FREESCALE [Freescale Semiconductor, Inc]

Direct Link	http://www.freescale.com

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MMA8652FC

Sensors

Freescale Semiconductor, Inc.

6.10.3

0x1F TRANSIENT_THS register

The Transient Threshold register sets the threshold limit for the detection of the transient acceleration. The value in the

TRANSIENT_THS register corresponds to a g value, which is compared against the values of high-pass filtered data. If the high-

pass filtered acceleration value exceeds the threshold limit, an event flag is raised and the interrupt is generated (if enabled).

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

DBCNTM

THS6

THS5

THS4

THS3

THS2

THS1

THS0

Figure 43. 0x1F TRANSIENT_THS register (Read/Write)

Table 42. TRANSIENT_THS register

Bit(s)

Field

Description

Notes

7DBCNTM

Debounce counter mode selection

0 Increments or decrements debounce (default)

1 Increments or clears counter

6–0

THS[6:0]

Transient Threshold

A 7-bit unsigned number, with 0.063g/LSB.

The maximum threshold is 8g.

000_0000 (default)

Even if the part is set to full scale at 2g (or 4g), this function

will still operate up to 8g.

MMA8652FC Datasheet(PDF) 51 Page - Freescale Semiconductor, Inc

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