ADNS-2120 Avago Technologies US Inc., ADNS-2120 Datasheet - Page 28

• Manufacturer Part Number: ADNS-2120
• Description: SOLID STATE OPTICAL MOUSE SENSOR
• Manufacturer: Avago Technologies US Inc.

Specifications of ADNS-2120

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q2072083D

Extended_Config
Access: Read/Write
Data Type: Bit field
USAGE: Register 0x0b allows the user to change the configuration of the sensor. Shown below are the bits, their default
values, and optional values.
28
Field Name
Busy
Reserved
Reserved
Reserved
Reserved
Serial_NPU
NAGC
Fixed_FR
Field
Bit
Busy
7
Description
Read-only bit. Indicates if it is safe to write to one or more of the following registers:
After writing to the Frame_Period_Max_Bound_Upper register, at least two frames must pass before
writing again to any of the above registers. This bit may be used in lieu of a timer since the actual frame
rate may not be known when running in auto mode.
0 = writing to the registers is allowed
1 = do not write to the registers yet
Reserved
Reserved
Reserved
Reserved
Disable serial port pull-up current sources
0 = no, current sources are on
1 = yes, current sources are off
Disable AGC. Shutter will be set to the value in the Shutter_Max_Bound registers.
0 = no, AGC is active
1 = yes, AGC is disabled
Fixed frame rate (disable automatic frame rate control). When this bit is set, the frame rate will be de-
termined by the value in the Frame_Period_Max_Bound registers.
0 = automatic frame rate
1 = fixed frame rate
Frame_Period_Max_Bound_Upper and Lower
Frame_Period_Min_Bound_Upper and Lower
Shutter_Max_Bound_Upper and Lower
Reserved
6
Reserved
5
Reset Value: 0x00
Reserved
Address: 0x0b
4
Reserved
3
Serial_NPU
2
NAGC
1
Fixed_FR
0