PixArt Imaging Inc.
ADNS-7550 Integrated Molded Lead-Frame DIP Sensor
Shut_thr
Address: 0x3d
Access: Read/Write
Reset Value: 0x56
Bit
7
6
5
4
3
2
1
0
Field
Shut_thr
Shut_thr
Shut_thr
Shut_thr
Shut_thr
Shut_thr
Shut_thr
1
Reserved
7
6
5
4
3
2
Data Type: 7 Bit number
USAGE: Threshold defines the Shutter value when lifted runaway happens.
Sensor will suspect lifted runaway happens and suppress motion if (Shutter > Shut_thr[7:1]*32).
Inverse_Revision_ID
Address: 0x3e
Reset Value: 0xfc
5
Access: Read
Bit
7
6
4
3
2
1
0
Field
NRID
NRID
NRID
NRID
NRID
NRID
NRID
NRID
0
7
6
5
4
3
2
1
Data Type: Inverse 8-Bit unsigned integer
USAGE: This value is the inverse of the Revision_ID. It can be used to test the SPI port.
Inverse_Product_ID
Address: 0x3f
Reset Value: 0xcd
5
Access: Write Only
Bit
7
6
4
3
2
1
0
Field
NPID
NPID
NPID
NPID
NPID
NPID
NPID
NPID
0
7
6
5
4
3
2
1
Data Type: Inverse 8-Bit unsigned integer
USAGE: This value is the inverse of the Product_ID. It can be used to test the SPI port.
Motion_Burst
Address: 0x42
Access: Read
Reset Value: 0x00
Bit
7
6
5
4
3
2
1
0
Field
MB
MB
MB
MB
MB
MB
MB
MB
0
7
6
5
4
3
2
1
Data Type: Various
USAGE: Read from this register to activate burst mode. The sensor will return the data in the Motion register, Delta_X_L,
Delta_Y_L, Delta_XY_H, Squal, Shutter_Upper, Shutter_Lower and Maximum_Pixel. Reading the first 3 bytes clears the
motion data. The read may be terminated anytime after Delta_X is read.
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PixArt Imaging Inc.
E-mail: fae_service@pixart.com.tw
PIXART [ PIXART IMAGING INC. ]
