Write to Camera

VV5430

CD5430F-A

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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.

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.)

Code

Interpretation

Comment

0000

Invalid

0001

Set-up code_1 (9 bits)

Basic funtionality options

0010

Set-up code_2 (9 bits)

Pixel control & Read Data

0011

Coarse exposure value (9 bits)

Set AEC=0 to enable

0100

Fine exposure value (9 bits)

Set AEC=0 to enable

0101

Gain control value (4 bits)

Set AGC=0 to enable

0110

Unused

0111

Unused

1000

Exposure control T1 threshold (9 bit)

1001

Exposure control T2 threshold (9 bit)

1010

Analogue control register (8 bit)

1011

Reserved

Not applicable to normal use

1100

Reserved

Not applicable to normal use

1101

Reserved

Not applicable to normal use

1110

Set-up code_3 (6 bits)

Pixel synchronisation

1111

Test mode select

Not applicable to normal use

Table 14 : Header Codes