VV6501 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'VV6501' PDF : 60 Pages View PDF
Functional Description
VV6501
3.4 Device operating modes
3.4.1
Power-up
On power up the sensor is in low-power mode. All data bus lines drive high to indicate that the
device is “present”.
3.4.2
Waking up the sensor
The sensor is made to exit low power mode by enabling the external clock and writing to SIF
register16 bit 0. The first frame output after exiting low-power mode does not contain any valid video
data.
Figure 21: Exiting low-power mode
Valid video data.
D[4:0]
FH
9H,6H,9H,6H...
One frame of 9H & 6H data.
CLKIN
Start of frame line for the 1st
frame of valid video data.
SDA
SCL
setup0[0]
Frame
number
0
1
2
LP1
LP2-LP3
LP3-LP4
D[4:0] are set to FH and the sensor analogue circuitry is
powered down.
“Exit low power mode” command.
Powers-up analogue circuits and initiates the 1 frame
start-up sequence
1 frame of alternating 9H & 6H data on D[4:0]
The sensor is being initialized during this frame.
3.4.3
Low power mode
Entering low-power mode during video streaming causes the analogue circuits to be powered
down. The values of the serial interface registers is preserved.
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