Sensors

Freescale Semiconductor, Inc.

20

MMA7660FC

AWSR[1:0]

NAME

DESCRIPTION

00

AW32

32 Samples/Second Auto-Wake Mode

For portrait/landscape detection: The device takes and averages 32 g-cell measurements every 31.25 ms in

Auto-Wake. The update rate is 32 samples per second. These measurements update the XOUT (0x00), YOUT

(0x01), and ZOUT (0x02) registers also.

01

AW16

16 Samples/Second Auto-Wake Mode

For portrait/landscape detection: The device takes and averages 32 g-cell measurements every 62.5 ms in

Auto-Wake. The update rate is 16 samples per second. These measurements update the XOUT (0x00), YOUT

(0x01), and ZOUT (0x02) registers also.

10

AW8

8 Samples/Second Auto-Wake Mode

For portrait/landscape detection: The device takes and averages 32 g-cell measurements every 125 ms in

Auto-Wake. The update rate is 8 samples per second. These measurements update the XOUT (0x00), YOUT

(0x01), and ZOUT (0x02) registers also.

11

AW1

1 Sample/Second Auto-Wake Mode

For portrait/landscape detection: The device takes and averages 32 g-cell measurements every 1000 ms in

Auto-Wake. The update rate is 1 sample per second. These measurements update the XOUT (0x00), YOUT

(0x01), and ZOUT (0x02) registers also.

FILT[2:0]

DESCRIPTION

000

Tilt debounce filtering is disabled. The device updates portrait/landscape every reading at the rate set by AMSR[2:0] or

AWSR[1:0]

001

2 measurement samples at the rate set by AMSR[2:0] or AWSR[1:0] have to match before the device updates portrait/

landscape data in TILT (0x03) register.

010

3 measurement samples at the rate set by AMSR[2:0] or AWSR[1:0] have to match before the device updates portrait/

landscape data in TILT (0x03) register.

011

4 measurement samples at the rate set by AMSR[2:0] or AWSR[1:0] have to match before the device updates portrait/

landscape data in TILT (0x03) register.

100

5 measurement samples at the rate set by AMSR[2:0] or AWSR[1:0] have to match before the device updates portrait/

landscape data in TILT (0x03) register.

101

6 measurement samples at the rate set by AMSR[2:0] or AWSR[1:0] have to match before the device updates portrait/

landscape data in TILT (0x03) register.

110

7 measurement samples at the rate set by AMSR[2:0] or AWSR[1:0] have to match before the device updates portrait/

landscape data in TILT (0x03) register.

111

8 measurement samples at the rate set by AMSR[2:0] or AWSR[1:0] have to match before the device updates portrait/

landscape data in TILT (0x03) register.