18

PROD_ID

Address: 0x00

Product ID Register

Access: Read

Reset Value: 0x2A

Bit

76543210

Field

PID7

PID6

PID5

PID4

PID3

PID2

PID1

PID0

Data Type: 8-Bit unsigned integer

USAGE: This register contains a unique identification assigned to the ADNS-3000. The value in this register does not

change; it can be used to verify that the serial communications link is functional.

REV_ID

Address: 0x01

Product ID Register

Access: Read

Reset Value: 0x00

Bit

76543210

Field

RID7

RID6

RID5

RID4

RID3

RID2

RID1

RID0

Data Type: 8-Bit unsigned integer

USAGE: This register contains the IC revision. It is subject to change when new IC versions are released.

MOTION_ST

Address: 0x02

Motion Status Register

Access: Read/Write

Reset Value: 0x00

Bit

7

6543210

Field

MOTION_ST

RSVD

RSVD

RSVD

RSVD

RSVD

RSVD

RSVD

Data Type: Bit field.

USAGE: Register 0x02 allows the user to determine if motion has occurred since the last time it was read. If the MOTION_

ST bit is set, then the user should read registers 0x03 (DELTA_X) and 0x04 (DELTA_Y) to get the accumulated

motion data. Read this register before reading the DELTA_X and DELTA_Y registers. Writing any data into this

register clears MOTION_ST bit, DELTA_X and DELTA_Y registers. However the written data byte will not be

saved.

Bit

Field Name

Description

7

MOTION_ST

Motion detected since last report

0 = No motion (default)

1 = Motion occurred, data in DELTA_X and DELTA_Y registers

ready to be read

6-0

RSVD

Reserved

All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.

PixArt Imaging Inc.

PixArt Imaging Inc.

ADNS-3000 Low Power Optical Mouse Sensor