PixArt Imaging Inc.
ADNS-7550 Integrated Molded Lead-Frame DIP Sensor
Maximum_Pixel
Address: 0x09
Access: Read
Reset Value: 0xd0
Bit
7
6
5
4
3
2
1
0
Field
MP
MP
MP
MP
MP
MP
MP
MP
0
7
6
5
4
3
2
1
Data Type: Eight-bit number.
USAGE: Maximum Pixel value in current frame. Minimum value = 0, maximum value = 254. The maximum pixel value
can vary with every frame.
Pixel_Sum
Access: Read
Bit
Address: 0x0a
Reset Value: 0x80
7
6
5
4
3
2
1
0
Field
AP
AP
AP
AP
AP
AP
AP
AP
7
6
5
4
3
2
1
0
Data Type: High 8 bits of an unsigned 16-bit integer.
USAGE: This register is used to find the average pixel value. It reports the upper eight bits of a 18-bit counter, which
sums all pixels in the current frame. It may be described as the full sum divided by 1024. To find the average pixel
value, use the following formula:
Average Pixel = Register Value * 1024/676 = Register Value * 1.515
The maximum register value is 167. The minimum is 0. The pixel sum value can change on every frame.
Minimum_Pixel
Access: Read
Bit
Address: 0x0b
Reset Value: 0x00
7
6
5
4
3
2
1
0
Field
MP
MP
MP
MP
MP
MP
MP
MP
0
7
6
5
4
3
2
1
Data Type: Eight-bit number.
USAGE:Minimum Pixel value in current frame. Minimum value = 0, maximum value = 254. The minimum pixel value
can vary with every frame.
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PixArt Imaging Inc.
E-mail: fae_service@pixart.com.tw
24
PIXART [ PIXART IMAGING INC. ]
