PixArt Imaging Inc.
Track-on-Glass Laser Sensor
Delta_X_L
Address: 0x03
Access: R
Reset Value: 0x00
Bit
7
6
5
4
3
2
1
0
Field
X7
X6
X5
X4
X3
X2
X1
X0
Data Type: 16 bits 2’s complement number. Lower 8 bits of Delta_X.
USAGE:
X movement is counts since last report. Absolute value is determined by resolution. X Read register Delta_X_L
before the subsequently read Delta_X_H, Delta_Y_L and Delta_Y_H registers in order to freeze Delta_X_H,
Delta_Y_L and Delta_Y_H register values. If Delta_X_H, Delta_Y_L and Delta_Y_H registers are not read
before the Delta_X_L register is read for the second time, the data in Delta_X_H, Delta_Y_L and Delta_Y_H
will be lost.
Delta_X_H
Address: 0x04
Access: R
Reset Value: 0x00
Bit
7
6
5
4
3
2
1
0
Field
X15
X14
X13
X12
X11
X10
X9
X8
Data Type: 16 bits 2’s complement number. Upper 8 bits of Delta_X.
USAGE:
Delta_X_H must be read after Delta_X_L to have the full motion data.
Motion
Counts
-32768 -32767
8000 8001
-2
-1
0
+1 +2
+32766 +32767
7FFE 7FFF
Delta_X
FFFE FFFF 0000 0001 0002
Delta_Y_L
Address: 0x05
Access: R
Reset Value: 0x00
Bit
7
6
5
4
3
2
1
0
Field
Y7
Y6
Y5
Y4
Y3
Y2
Y1
Y0
Data Type: 16 bits 2’s complement number. Lower 8 bits of Delta_Y.
USAGE: Y movement is counts since last report. Absolute value is determined by resolution.
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PixArt Imaging Inc.
E-mail: fae_service@pixart.com.tw
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PIXART [ PIXART IMAGING INC. ]
