ADNS-2220 Avago Technologies US Inc., ADNS-2220 Datasheet - Page 27

• Manufacturer Part Number: ADNS-2220
• Description: SOLID STATE OPTICAL MOUSE LENS
• Manufacturer: Avago Technologies US Inc.

Specifications of ADNS-2220

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q2072083A

Configuration_bits
Access: Read/Write
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.
27
Field Name
BIT 7
LED_MODE
Sys Test
RES
Reserved
Reserved
Reserved
Reserved
Field
Bit
7
0
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.
Resolution in counts per inch
0 = 400
1 = 800
Reserved
Reserved
Reserved
Reserved
LED_MODE
6
Sys Test
Address: 0x0a
Reset Value: 0x09
5
RES
4
Reserved
3
Reserved
2
Reserved
1
Reserved
0