STV-974/552S-R01 STMicroelectronics, STV-974/552S-R01 Datasheet - Page 35

• Manufacturer Part Number: STV-974/552S-R01
• Description: KIT DEMO W/VS6552
• Manufacturer: STMicroelectronics

Specifications of STV-974/552S-R01

• Sensor Type: CMOS Imaging, Color (RGB)
• Sensing Range: VGA
• Interface: I²C
• Sensitivity: 30 fps
• Embedded: No
• Utilized Ic / Part: STV0974E, VS6552
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-3891

35/61
Functional description
Still Mode This mode is used to take still pictures. Still picture parameters can be set for both
image size and data format. the first image output has a guaranteed exposure and color balance.
the number of frames output can also be set.
Live Mode Live clips can be generated in all the data and image formats.
Flash Mode Flash mode is used to take a single still picture and synchronously activate a flash
gun signal and illuminate the scene during the exposure period of the pixels.
Torch Mode For systems without a flash gun, a torch mode can replace the flash mode. Torch
mode is a setting (rather than a mode) which supports illumination of devices by producing a longer
illumination pulse with a lower intensity. In torch mode, illumination is switched on before the
camera is operated in one of the standard operating modes: ViewFinder, still capture or live.
Mode transitions
Boot to sleep The microcore starts following PDN de-activation. The right configuration is
obtained according to the following procedure:
1 Determine the sensor I
2 Read all sensor registers, either through I
3 Initialize internal registers.
The device then automatically goes into sleep mode
Sleep to idle When exiting sleep mode, the external clock register of the sensor is set, and the
sensor goes into Idle mode.
Figure 22: Sleep to idle timing
CLK from sensor
Sensor Mode
MSCL/MSDA
974 Mode
SCL/SDA
2
C chip address.
or Goto Live
Goto VF
Sleep
external clock
t0
t0: Time to interpret Mode change command (< 1ms)
t1: Time to set clk characteristics (< 1ms)
t2: Time to get sensor characteristics (< 3ms) to go to idle
Set
2
t1
C reads or status line interpretation.
Go to clk
active
Sleep
Clock Active
Get sensor
characteristics
t2
Clock Active
Go to Idle
Idle
Idle
STV0974