PixArt Imaging Inc.

PAN301BSI-208

CMOS Optical Mouse Sensor

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PixArt Imaging Inc.

V1.1, MAY. 2004

3. Registers and Operation

The PAN301BSI-208 can be programmed through registers, via the serial port, and DSP configuration

and motion data can be read from these registers. All registers not listed are reserved, and should never be

written by firmware.

3.1 Registers

Address

Name

R/W

Default

Data Type

0x00

Product_ID

R

0x30

Eight bits [11:4] number with the product identifier

0x01

Product_ID

R

0x1N

Four bits [3:0] number with the product identifier

Reserved [3:0] number is reserved for future

0x02

Motion_Status

R

-

Bit field

0x03

Delta_X

R

-

Eight bits 2’s complement number

0x04

Delta_Y

R

-

Eight bits 2’s complement number

0x05

Operation_Mode

R/W

-

Bit field

0x06

Configuration

R/W

-

Bit field

0x07

Image_Quality

R

-

Eight bits unsigned integer

3.2 Register Descriptions

0x00

Product_ID

Bit

7

6

5

4

3

2

1

0

Field

PID[11:4]

Usage

The value in this register can’t change. It can be used to verify that the serial communications link is

OK.

0x01

Product_ID

Bit

7

6

5

4

3

2

1

0

Field

PID[3:0]

Reserved [3:0]

Usage

The value in this register can’t change. PID[3:0] can be used to verify that the serial

communications link is OK. Reserved [3:0] is a value between 0x0 and 0xF, it can’t be used to

verify that the serial communications.