28

Configuration_bits

Address: 0x0a

Access: Read/Write

Reset Value: 0x09

Bit

7

6

543210

Field

0

LED_MODE

Sys Test

RES

Reserved

Reserved

Reserved

Reserved

Data Type: Bit field

USAGE: Register 0x0a allows the user to change the configuration of the sensor. Shown below are the bits, their default

values, and optional values.

Field Name

Description

BIT 7

Must always be zero

LED_MODE

LED Shutter Mode

0 = Shutter mode off (LED always on)

1 = Shutter mode on (LED only on when illumination is required)

Sys Test

System Tests

0 = no tests

1 = perform all system tests, output 16 bit CRC via Data_Out_Upper and Data_Out_Lower registers.

NOTE: The test will fail if SROM is loaded. Perform a hardware reset before executing this test. Reload

SROM after the test is completed.

NOTE: Since part of the system test is a RAM test, the RAM and SRAM will be overwritten with the

default values when the test is done. If any configuration changes from the default are needed for

operation, make the changes AFTER the system test is run. The system test takes 200ms (@24MHz) to

complete.

NOTE: Do not access the Synchronous Serial Port during system test.

RES

Resolution in counts per inch

0 = 3500

1 = 1800

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PixArt Imaging Inc.

PixArt Imaging Inc.