31

SQUAL

Address: 0x07

Access: Read

Reset Value: 0x00

Bit

76543210

Field

Data Type: Eight bit number.

USAGE: SQUAL is a measure of the number of features visible by the sensor in the current frame. The maximum value is

128. Since small changes in the current frame can result in changes in SQUAL, slight variations in SQUAL on one

surface is expected.

SHUT_HI

Address: 0x08

Type: Device

Access: Read only

Reset Value: 0x00

Bit

76543210

Field

SHUT_LO

Type: Device

Access: Read only

Reset Value: 0x64

Bit

76543210

Field

Data Type: 16-bit number.

USAGE: The combination of SHUT_HI and SHUT_LO is a 16-bit number. This is the number of clocks the shutter was

open for the last image taken. The unit is in main clock count (nominally 12MHz). To avoid split read issues, read

SHUT_Hi first.

PIX_MAX

Address: 0x0A

Type: Device

Access: Read only

Reset Value: 0x00

Bit

76543210

Field

0

Data Type: Eight bit number.

USAGE: This is the maximum pixel value from the last image taken.

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PixArt Imaging Inc.

PixArt Imaging Inc.

ADNS-2710 Single Chip USB Optical Mouse Sensor