ADNS-2051 Avago Technologies US Inc., ADNS-2051 Datasheet - Page 29

• Manufacturer Part Number: ADNS-2051
• Description: Optical Mouse Sensor,DIP
• Manufacturer: Avago Technologies US Inc.

Specifications of ADNS-2051

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q2072083C

Product_ID
Access: Read
29
Registers
The ADNS-2051 can be programmed through registers, via the serial port, and configuration and motion data can
be read from these registers.
Address
0x00
0x01
0x02
0x03
0x04
0x05
Data Type: Eight bit number with the product identifier.
USAGE: The value in this register does not change, it can be used to verify that the
serial communications link is OK.
Revision_ID
Access: Read
Data Type: Eight bit number with current revision of the IC.
USAGE: NN is a value between 00 and FF which represent the current design revision
of the device.
Motion
Access: Read
Data Type: Bit field
USAGE: Register 0x02 allows the user to determine if motion has occurred since the last time it was read. If so, then the user
should read registers 0x03 and 0x04 to get the accumulated motion. It also tells if the motion buffers have overflowed and
whether or not an LED fault occurred since the last reading. The current resolution is also shown.
Field
Field
Field
Bit
Bit
Bit
PID
RID
7
7
MOT
7
7
Register
Product_ID
Revision_ID
Motion
Delta_X
Delta_Y
SQUAL
7
PID
RID
6
6
6
6
Reserved
PID
RID
6
5
5
5
5
PID
RID
Address
0x06
0x07
0x08
0x09
0x0a
0x0b
4
4
Address: 0x00
Reset Value: 0x02
Address: 0x01
Reset Value: 0xNN
Address: 0x02
Reset Value: 0x00
4
4
FAULT
5
PID
RID
3
3
3
3
PID
RID
OVFY
2
2
4
Average_Pixel
Configuration_bits
Register
Maximum_Pixel
Reserved
Reserved
Reserved
2
2
PID
RID
1
1
1
1
OVFX
3
PID
RID
0
0
0
0
Address
0x0c
0x0d
0x0e
0x0f
0x10
0x11
Reserved
2
Reserved
Register
Data_Out_Lower
Data_Out_Upper
Shutter_Lower
Shutter_Upper
Frame_Period_Lower
Frame_Period_Upper
1
RES
0