ADNS-7550 Avago Technologies US Inc., ADNS-7550 Datasheet - Page 26

• Manufacturer Part Number: ADNS-7550
• Description: Optical Mouse Sensor,DIP
• Manufacturer: Avago Technologies US Inc.

Specifications of ADNS-7550

• Mounting Style: Through Hole
• Termination Style: Solder Pin
• Supply Voltage: 5 V
• Operating Temperature Range: 0 C to + 40 C
• Product: Optical
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 516-2180; ADNS-7550

26
Self_Test
Access: Write
Data Type: Bit field
USAGE: Before performing system self test, reset the chip. Then, set the TESTEN bit in register 0x10 to start the system
self test. The test takes 250ms. During this time, do not write or read through the SPI port. Results are available in the
CRC0-3 registers. After self-test, reset the chip again to start normal operation.
Reserved
Configuration2_bits
Access: Read/Write
Data Type: Bit field
USAGE: Register 0x12 allows the user to change the configuration of the sensor. The RES bit allows selection between
400, 800, 1200 and 1600 cpi resolution.
Reserved
Field Name
TESTEN
Field Name
RES[1:0]
Field
Field
Bit
Bit
Reserved
Description
Enable System Self Test
0 = Disabled
1 = Enable
Description
Sets resolution
00 = 400
01 = 800
10 = 1200
11 = 1600
7
7
0
Reserved
RES
6
6
1
Address: 0x10
Reset Value: NA
Address: 0x11
Address: 0x12
Reset Value: 0x28
Address: 0x1b
Reserved
RES
5
5
0
Reserved
Reserved
4
4
Reserved
Reserved
3
3
Reserved
Reserved
2
2
Reserved
Reserved
1
1
Reserved
TESTEN
0
0