ADNS-3090 Datasheet, PDF (28/38 Pages) Pixart Imaging Inc. – High-Performance Optical Mouse Sensor

PixArt Imaging Inc.
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Configuration_bits
Access: Read/Write
Bit
7
Field
0
6
LED_MODE
Address: 0x0a
Reset Value: 0x09
5
4
Sys Test
RES
3
2
1
0
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
BIT 7
LED_MODE
Sys Test
Description
Must always be zero
LED Shutter Mode
0 = Shutter mode off (LED always on)
1 = Shutter mode on (LED only on when illumination is required)
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
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
PixArt Imaging Inc.
E-mail: [e-mail]
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