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VS6955CA Datasheet(PDF) 18 Page - STMicroelectronics

Part # VS6955CA
Description  5.0 megapixel fixed-focus camera module
PDF  90 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

VS6955CA Datasheet(HTML) 18 Page - STMicroelectronics

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Functional description
VS6955CA
18/90
DocID028071 Rev 2
3.3
Ultra low power mode option (only for CSI-2)
It is possible to reduce the power consumption of the system while the camera is not being
used while allowing it to be restarted at any time with a short time to streaming mode. This
can be achieved using the ultra low power standby (ULPS) mode.
ULPS mode can be entered and exited from software standby only. To enter ULPS, the user
needs to write to the sensor a specific list of settings through CCI. ST will provide the list of
CCI commands to enter or exit ULPS upon demand.
Figure 7. ULPS sequence for CSI-2 mode
EXTCLK (Free running)
SDA
SCL
CLKP/-
DATAP/-
Configure
device to
STREAMING
VANA, VDIG, VBAT, XSHUTDOWN at HIGH LEVEL
SW_STANDBY
High-Speed
TX
ULPS entry sequence
ULPS
High-Speed
TX
ENTER ULPS
Configure
device to
EXIT ULPS
SW_STANDBY
SW_STANDBY
ULPS exit sequence
See D-PHY spec (v1.0) for details
See D-PHY spec (v1.0) for details
ULPS
See D-PHY spec (v1.0) for details
See D-PHY spec (v1.0) for details
ULPS entry sequence
ULPS exit sequence



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