AR0330 Datasheet, PDF (56/77 Pages) ON Semiconductor – CMOS Digital Image Sensor

AR0330: 1/3-Inch CMOS Digital Image Sensor
Frame Readout
Frame Readout
The sensor readout begins with vertical blanking rows followed by the active rows. The
frame readout period can be defined by the number of row periods within a frame
(frame_length_lines) and the row period (line_length_pck). The sensor will read the first
vertical blanking row at the beginning of the frame period and the last active row at the
end of the row period.
Figure 39:
Example of the Sensor Output of a 2304 x 1296 Frame at 60 fps
The frame valid and line valid signals mentioned in this diagram represent internal signals within the sensor.
The SYNC codes represented in this diagram represent the HiSPi Streaming SP protocol.
Row Reset
1/60s
Row Read Row Reset
1/60s
Row Read
Vertical Blanking
Active Rows
Time
Serial SYNC Codes
Start of Vertical Blanking
Start of Frame
Start of Active Row
End of Line
End of Frame
Row Reset
Row Read Row Reset
End of Frame
Readout
Row Read
End of Frame
Readout
HB (192 Pixels/Column)
2304 x 1296
HB (192 Pixels/Column)
2304 x 1296
Frame Valid
Line Valid
Figure 39 aligns the frame integration and readout operation to the sensor output. It also
shows the sensor output using the HiSPi Streaming SP protocol. Different sensor proto-
cols will list different SYNC codes.
Table 38: Serial SYNC Codes Included with Each Protocol Included with the AR0330 Sensor
Interface/Protocol
Parallel
HiSPi Streaming S
HiSPi Streaming SP
HiSPi Packetized SP
MIPI
Start of Vertical Start of Frame Start of Active Line
Blanking Row (SOV)
(SOF)
(SOA)
End of Line
(EOL)
End of Frame
(EOF)
Parallel interface uses FRAME VALID(FV) and LINE VALID (LV) outputs to denote start and end of line and
frame.
Yes
Send SOV
Yes
No SYNC Code
No SYNC Code
Yes
Yes
Yes
Yes
Yes
No SYNC Code
Yes
Yes
Yes
Yes
No SYNC Code
Yes
Yes
Yes
Yes
AR0330_DS Rev. U Pub. 4/15 EN
56
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