20

Registers Summary

The sensor registers are accessible via the serial port. The registers are used to read motion data and status as well as to

set the device configuration.

Address

Register (Before SROM download)

Access (Read = R, Write = W or Read/Write = R/W)

Reset Value

0x00

Product_ID

R

0x3a

0x01

Revision_ID

R

0x02

0x02

MOTION

R

0x02

0x03

Delta_X_L

R

0x00

0x04

Delta_X_H

R

0x00

0x05

Delta_Y_L

R

0x00

0x06

Delta_Y_H

R

0x00

0x07

SQUAL

R

0x00

0x08

Pixel_Sum

R

0x00

0x09

Maximum_Pixel

R

0x00

0x0a

Minimum_Pixel

R

0x00

0x0b

Shutter_Lower

R

Undefined

0x0c

Shutter_Upper

R

Undefined

0x0d – 0x0e

Reserved

0x0f

Configuration_I

R/W

0x0a

0x10

Configuration_II

R/W

0x28

0x11

Reserved

0x12

Frame_Capture

R/W

0x00

0x13

SROM_Enable

W

Undefined

0x14

Run_Downshift

R/W

0x7d

0x15

Rest1_Rate

R/W

0x01

0x16

Rest1_Downshift

R/W

0x7d

0x17

Rest2_Rate

R/W

0x09

0x18

Rest2_Downshift

R/W

0x5e

0x19

Rest3_Rate

R/W

0x31

0x1a – 0x1f

Reserved

0x20

LASER_CTRL0

R/W

Undefined

0x21

LASER_CTRL1

R/W

Undefined

0x22

LP_CFG0

R/W

Undefined

0x23

LP_CFG1

R/W

Undefined

0x24

Observation

R/W

0x00

0x25

Data_Out_Lower

R

Undefined

0x26

Data_Out_Upper

R

Undefined

0x27- 0x29

Reserved

0x2a

SROM_ID

R

0x00

0x2b - 0x39

Reserved

0x3a

Power_Up_Reset

W

Undefined

0x3b

Shutdown

W

Undefined

0x3c - 0x3e

Reserved

0x3f

Inverse_Product_ID

R

0xc5

0x40 - 0x4f

Reserved

0x50

Motion_Burst

R

0x00

0x51-0x61

Reserved

0x62

SROM_Load_Burst

W

Undefined

0x63

Reserved

0x64

Pixel_Burst

R

0x00

PixArt Imaging Inc.

Track-on-Glass Laser Sensor

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PixArt Imaging Inc.