17

PROD_ID

Address: 0x00

Access: Read

Reset Value: 0x09

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-3050. The value in this register does

not change; it can be used to verify that the serial communications link is functional. If using this register to

verify serial communications link during rest modes, please read following registers in this sequence: 0x00,

0x02, 0x03, 0x04, 0x00 (regardless of register 0x02’s status). If both or either one of the read 0x00 value is

correct, no additional action is required as the serial communication link is good. Only if both read 0x00

value attempts are wrong, perform a reset operation to the sensor to restore the serial communications link.

Note: Highly recommended to use Motion pin function during rest modes for motion detection in wireless mode.

REV_ID

Address: 0x01

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

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

PixArt Imaging Inc.

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PixArt Imaging Inc.