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3. TECHNICAL BRIEF
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ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ͑
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3.15 Motion Sensor
According to tilt the cell phone, the screen is had rotated automatically.
U4 :BMA150 IC used I2C interface to MSM7227
Figure. Motion Sensor Schematic
Figure. Motion Sensor Schematic Block Diagram
U600
21
11
6
5
7
4
8
3
9
2
10
1
NC1
NC2
VDD
VDDIO
GND
SDI
INT
SDO
CSB
SCK
1T
O
N
2T
O
N
100K
R612
VREG_MSMP_2.6V
VREG_MSMP_2.6V
9
0
6
R
K
7
.
4
K
7
.
4
0
1
6
R
C612
0.1u
0.1u
C613
MOTION_I2C_SDA
MOTION_INT
MOTION_I2C_SCL