PixArt Imaging Inc.

PAN3501UI

USB Optical Mouse Sensor Single Chip

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PixArt Imaging Inc.

V1.0, APR. 2005

4.2.2 USB Report Protocol

Byte

Bit

Symbol Description

0

BL

1 = Left button pressed

1

BR

1 = Right button pressed

2

BM

1 = Middle button pressed

3

B4

1 = B4 button pressed

4

B5

1 = B5 button pressed

1

5~7

NC

Reserved

2

0-7

X0~X7 X data (D0 - D7). A positive value indicates motion to the right; a negative

value indicates motion to the left. Bit 0=LSB.

3

0-7

Y0~Y7 Y data (D0 - D7). A positive value indicates device motion upward; a negative

value indicates motion downward. Bit 0=LSB.

4

0-7

Z0~Z7

Z-wheel motion data (D0 - D7). A positive value indicates device motion

downward; a negative value indicates motion upward. The Z0-Z7 limit value is

±7. Bit 0=LSB.