Datasheet-1

Table Of Contents
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MT9V022_DS - Rev.H 6/10 EN
39 ©2005 Aptina Imaging Corporation. All rights reserved.
MT9V022: 1/3-Inch Wide-VGA Digital Image Sensor
Feature Description
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.
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.
Table 8: LVDS Packet Format in Stereoscopy Mode (Stereoscopy Mode Bit Asserted)
18-bit Packet Function
Bit[0] 1'b1 (Start bit)
Bit[1] MasterSensorPixelData[2]
Bit[2] MasterSensorPixelData[3]
Bit[3] MasterSensorPixelData[4]
Bit[4] MasterSensorPixelData[5]
Bit[5] MasterSensorPixelData[6]
Bit[6] MasterSensorPixelData[7]
Bit[7] MasterSensorPixelData[8]
Bit[8] MasterSensorPixelData[9]
Bit[9] SlaveSensorPixelData[2]
Bit[10] SlaveSensorPixelData[3]
Bit[11] SlaveSensorPixelData[4]
Bit[12] SlaveSensorPixelData[5]
Bit[13] SlaveSensorPixelData[6]
Bit[14] SlaveSensorPixelData[7]
Bit[15] SlaveSensorPixelData[8]
Bit[16] SlaveSensorPixelData[9]
Bit[17] 1'b0 (Stop bit)
Table 9: Reserved Words in the Pixel Data Stream
Pixel Data Reserved Word Flag
0 Precedes frame valid assertion
1 Precedes line valid assertion
2 Succeeds line valid de-assertion
3 Succeeds frame valid de-assertion