MMA8653FC datasheet(16/56 Pages) FREESCALE

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MMA8653FC

Sensors

Freescale Semiconductor, Inc.

Figure 8. Landscape to Portrait transition

Figure 9 shows the Z-angle lockout region.

Figure 9. Z-Tilt angle lockout transition

5.7

Interrupt register configurations

There are 4 configurable interrupts in the MMA8653FC: Data Ready, Motion/Freefall, Orientation, and Auto-SLEEP events.

Figure 10. System interrupt generation

PORTRAIT

Landscape to Portrait

Trip Angle = 60

0° Landscape

PORTRAIT

Portrait to Landscape

Trip Angle = 30

0° Landscape

UPRIGHT

NORMAL

Z-LOCK = 29°

0° FLAT

DETECTION

REGION

LOCKOUT

REGION

When lifting the device upright from the

flat position, the device will be active for

orientation detection as low as 29° from 0°

flat. This is the only setting available.

Interrupt

Controller

Data Ready

Motion/Freefall

Orientation

Auto-SLEEP

INT ENABLE

INT CFG

INT1

INT2

4 configurable interrupts

These 4 interrupt sources can be

routed to one of two interrupt pins.

The interrupt source must be enabled

and configured.

If the event flag is asserted because

the event condition is detected, then

the corresponding interrupt pin (INT1

or INT2) will assert.

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