VV5430 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

VV5430

Monochrome Analog Output CMOS Image Sensors

STMicroelectronics 

Write to Camera

VV5430

10.2 Header Codes

The message can be a configuration word, an exposure, gain or calibration value. The camera’s interpretation of the header code

and the set-up code message are given in the table below. Defaults for each control bit are built in to the camera’s reset cycle,

and may be changed on-the-fly under host control.

Code

0000

0001

0010

0011

0100

0101

0110

0111

1000

1001

1010

1011

1100

1101

1110

1111

Interpretation

Comment

Invalid

Set-up code_1 (9 bits)

Basic funtionality options

Set-up code_2 (9 bits)

Pixel control & Read Data

Coarse exposure value (9 bits)

Set AEC=0 to enable

Fine exposure value (9 bits)

Set AEC=0 to enable

Gain control value (4 bits)

Set AGC=0 to enable

Unused

Unused

Exposure control T1 threshold (9 bit)

Exposure control T2 threshold (9 bit)

Analogue control register (8 bit)

Reserved

Not applicable to normal use

Reserved

Not applicable to normal use

Reserved

Not applicable to normal use

Set-up code_3 (6 bits)

Pixel synchronisation

Test mode select

Not applicable to normal use

Table 14 : Header Codes

10.3 Message content

The following Tables contain details of the data associated with each header code, and the number of valid data bits in each of

the registers. In all cases the full 12 bit message tail can be sent, the valid bits being packed to the lsb. (Normally, the unused bits

would be assigned zeroes.)

CD5430F-A

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