23

DELTA_XY_HIGH

Address: 0x0c

Upper 4 bits Delta-X/Y Displacement Register

Access: Read

Reset Value: 0x00

Bit

76543210

Field

DELTA_X_

HI3

DELTA_X_

HI2

DELTA_X_

HI1

DELTA_X_

HI0

DELTA_Y_

HI3

DELTA_Y_

HI2

DELTA_Y_

HI1

DELTA_Y_

HI0

Data Type: Eight bit 2’s complement number.

USAGE: Concatenate the values to have a 12-bit reporting for the motion.

X motion = {DELTA_XY_HIGH[7:4], DELTA_X} , Y motion = DELTA_XY_HIGH[3:0], DELTA_Y}

Bit(s)

Field Name

Description

7:4

DELTA_X_HI

Upper 4 bits of DELTA_X displacement for 12-bit reporting

3:0

DELTA_Y_HI

Upper 4 bits of DELTA_Y displacement for 12-bit reporting

NOTE:

PixArt RECOMMENDS that registers 0x03, 0x04 and 0x0c be read consecutively in 12-bit motion reporting.

MOUSE_CTRL

Address: 0x0d

Mouse Control Register

Access: Read/Write

Reset Value: 0x01

Bit

7

6543210

Field

BIT_

REPORTING

RSVD

RES_EN

RES2

RES1

RES0

PD

RES_D

Data Type: Bit field.

USAGE: Resolution and chip reset information can be accessed or to be edited by this register.

Bit(s)

Field Name

Description

7

BIT_REPORTING

0x0: 8-bit motion reporting

0x1: 12-bit motion reporting. Read register 0x03, 0x04 and 0x0c.

6

RSVD

Reserved

5

RES_EN

Enable resolution settings set on MOUSE_CTRL [4:2]

4:2

RES [2:0]

Resolution

0x0: 1000 dpi

0x1: 250 dpi

0x2: 500 dpi

0x3: 1250 dpi

0x4: 1500 dpi

0x5: 1750 dpi

0x6: 2000 dpi

1

PD

Power Down

0

RES_D

0x0: 500 dpi

0x1: 1250 dpi (default)

NOTE: Setting MOUSE_CTRL [5] bit to ‘1’ will supersede and ignore MOUSE_CTRL [0] setting.

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PixArt Imaging Inc.

PixArt Imaging Inc.

ADNS-3000 Low Power Optical Mouse Sensor