MT9V022 Datasheet, PDF (40/58 Pages) ON Semiconductor – Wide-VGA CMOS Digital Image Sensor

MT9V022: 1/3-Inch Wide-VGA Digital Image Sensor
Feature Description
Table 6:
Table 7:
LVDS Packet Format in Stereoscopy Mode (Stereoscopy Mode Bit Asserted)
18-bit Packet
Bit[0]
Bit[1]
Bit[2]
Bit[3]
Bit[4]
Bit[5]
Bit[6]
Bit[7]
Bit[8]
Bit[9]
Bit[10]
Bit[11]
Bit[12]
Bit[13]
Bit[14]
Bit[15]
Bit[16]
Bit[17]
Function
1'b1 (Start bit)
MasterSensorPixelData[2]
MasterSensorPixelData[3]
MasterSensorPixelData[4]
MasterSensorPixelData[5]
MasterSensorPixelData[6]
MasterSensorPixelData[7]
MasterSensorPixelData[8]
MasterSensorPixelData[9]
SlaveSensorPixelData[2]
SlaveSensorPixelData[3]
SlaveSensorPixelData[4]
SlaveSensorPixelData[5]
SlaveSensorPixelData[6]
SlaveSensorPixelData[7]
SlaveSensorPixelData[8]
SlaveSensorPixelData[9]
1'b0 (Stop bit)
Control signals LINE_VALID and FRAME_VALID can be reconstructed from their respec-
tive preceding and succeeding flags that are always embedded within the pixel data in
the form of reserved words.
Reserved Words in the Pixel Data Stream
Pixel Data Reserved Word
0
1
2
3
Flag
Precedes frame valid assertion
Precedes line valid assertion
Succeeds line valid de-assertion
Succeeds frame valid de-assertion
When LVDS mode is enabled along with column binning (bin 2 or bin 4, R0x0D[3:2], the
packet size remains the same but the serial pixel data stream repeats itself depending on
whether 2X or 4X binning is set:
• For bin 2, LVDS outputs double the expected data (pixel 0,0 is output twice in
sequence, followed by pixel 0,1 twice, . . .).
• For bin 4, LVDS outputs 4 times the expected data (pixel 0,0 is output 4 times in
sequence followed by pixel 0,1 times 4, . . .).
The receiving hardware will need to undersample the output stream getting data either
every 2 clocks (bin 2) or every 4 (bin 4) clocks.
If the sensor provides a pixel whose value is 0,1, 2, or 3 (that is, the same as a reserved
word) then the outgoing serial pixel value is switched to 4.
MT9V022_DS Rev. L 6/15 EN
40
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