VG6640 datasheet(19/126 Pages) STMICROELECTRONICS

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DocID023597 Rev 11

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VG6640, VD6640

Functional description

125

Functional description

Figure 4. Block diagram

The image sensor includes the following main functional blocks:

•

Master controller

Responsible for system operation and sequencing with the following features:

–

microcontroller core

–

clock and reset management

–I2C control interface and control transaction routing

–

safe system startup from reset to standby

–

system transition from standby to streaming mode

–

system streaming soft stop

–

device re-initialization to default mode (software reset)

–

high dynamic mode setting (management of the integration time settings).

–

non-volatile memory (NVM) management

•

Custom analog block (CAB)

–

Contains the pixel array and the analog components to drive it.

•

Video timing block

–

Generates digital video timing signals for the CAB with synchronization to an

optional external sync signal.

Image sensor

Custom analog block

1304 x 980

Clock &

PLL

NVM

Video timing

Temp.

sensors

HDR

video pipe

Master

controller

Companion

External sync.

device

HDR pixels

(CAB)

External clock

Charge

pumps

1V2

reg.

MIPI

CSI-2 &

parallel

I/O

I2C

Power supply

Companion

device

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