23

Delta_X_L

Address: 0x03

Access: R

Reset Value: 0x00

Bit

76543210

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

76543210

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

-32768 -32767

-2

-1

0

+1

+2

+32766 +32767

Counts

Delta_X

8000 8001

FFFE FFFF 0000 0001 0002

7FFE 7FFF

Delta_Y_L

Address: 0x05

Access: R

Reset Value: 0x00

Bit

76543210

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.

PixArt Imaging Inc.

Track-on-Glass Laser Sensor

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PixArt Imaging Inc.