參數資料
型號: VV5410C036
廠商: 意法半導體
英文描述: Mono and Colour Digital Video CMOS Image Sensors
中文描述: 莫諾和數字視頻彩色CMOS圖像傳感器
文件頁數: 50/105頁
文件大?。?/td> 489K
代理商: VV5410C036
VV5410 & VV6410
Digital Video Interface Format
cd5410-6410f-3-0.fm
Commercial in confidence
50/105
8.8
Please note that the following descriptions of low power and sleep modes assumes that the user has selected the optional 4 wire
output mode, that is D[3:0] will transmit the digital video data. If the 5-wire or 8-wire modes are selected the same basic behaviour
is followed however the contents of the data bus will differ slightly.
Power-up, Low-power and Sleep modes
8.8.1
The sensor enters low-power mode on power-up. On power-up all of the data bus lines are driven high immediately and the
device is in low-power mode (Section 8.8.2).
Power-Up/Down (Figure 29)
The sensor will remain in the low power mode until the external host sends the appropriate message over I2C to clear the low
power bit - bit0 of serial reguister, setup0, index 10
16
.
After the “Exit Low-Power Mode” command has been sent the sensor will output for one frame, a continuous stream of alternating
9
H
and 6
H
values on D[3:0] The patterns generated in 5 and 8 wire modes are given in Table 16 below. By locking onto the
resulting 0101/1010 patterns appearing on the data bus lines the host can determine the best sampling position for the nibble
data. After the last 9
H
6
H
pair has been output the data bus returns to F
H
,(1F
H
in 5 wire mode), until the start of fifth frame. At this
point the first active video frame will be output. After the host has determined the correct sampling position for the data, it should
then wait for the next start of frame line (SOF).
PU0
System Power Up
PU1
Sensor enters low power mode and databus bits driven high.
PU2
Host enables the sensor clock, CLKI.
PU3-PU4
The host sends a “Soft-Reset” command to the sensor via the serial interface. This ensures that
the sensor is in low-power mode.
PU5
Host issues command to remove sensor from low-power mode.
PU6-PU7
Sensors begins execution 4 frame start sequence.
PU8-PU9
One frame of alternating 9
H
& 6
H
data on D[3:0] for the host to determine the best sampling
phase for video data.
PU10-PU11
4 Frames after the “Exit Low-Power Mode” serial comms, the sensor starts outputing valid video
data.
Table 15 : Typical System Power-Up
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