ADNS-3090 Datasheet, PDF (37/38 Pages) Pixart Imaging Inc. – High-Performance Optical Mouse Sensor

PixArt Imaging Inc.
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Observation
Access: Read/Write
Address: 0x3D
Reset Value: 0x00
Bit
7
6
5
4
3
2
1
0
Field
OB₇
Reserved
OB₅
Reserved Reserved Reserved
OB₁
OB₀
Data Type: Bit field
USAGE: Each bit is set by some process or action at regular intervals, or when the event occurs. The user must clear the
register by writing 0x00, wait an appropriate delay, and read the register. The active processes will have set their cor-
responding bit(s). This register may be used as part of a recovery scheme to detect a problem caused by EFT/B or ESD.
Field Name
OB7
Reserved
OB5
Reserved
Reserved
Reserved
OB1
OB0
Description
0 = chip is not running SROM code
1 = chip is running SROM code
Reserved
NPD pulse was detected
Reserved
Reserved
Reserved
Set once per frame
Set once per frame
Reserved
Address: 0x3E
Inverse_Product_ID
Access: Read
Bit
Field
7
NPID₇
6
NPID₆
Address: 0x3F
Reset Value: 0xF8
5
NPID₅
4
NPID₄
3
NPID₃
2
NPID₂
1
NPID₁
0
NPID₀
Data Type: Inverse 8-Bit unsigned integer
USAGE: This value is the inverse of the Product_ID, located at the inverse address. It can be used to test the SPI port.
Pixel_Burst
Address: 0x40
Access: Read
Reset Value: 0x00
Bit
7
6
5
4
3
2
1
0
Field
PB₇
PB₆
PB₅
PB₄
PB₃
PB₂
PB₁
PB₀
Data Type: Eight bit unsigned integer
USAGE: The Pixel_Burst register is used for high-speed access to all the pixel values from one and 2/3 complete frame.
See the Synchronous Serial Port section for use details.
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PixArt Imaging Inc.
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E-mail: [e-mail]