VV5430

Write to Camera

CD5430F-A

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Setup Code_1

Header Code = 0001

Valid data bits: 11

The code_1 setup register is used to select different basic operating modes:

Note: Decreasing the system clock rate proportionately increases sensor sensitivity (by increasing exposure time), but

also decreases frame frequency. System Clock must be x1 for standard CCIR or EIA framing.

Bit

Function

Default

Comment

0

Normal/Backlit

0

Selects between normal and backlit exposure modes. The

power-on default is normal mode. See Exposure Control

for full description

1

Linear Correction enable

0

Selects between a linear (LIN=1) or gamma corrected

video signal on AVO. The power-on default is gamma cor-

rected.

2

Auto gain control enable

1

Allows automatic gain control to be inhibited. The current

gain value selected is frozen. With AGC=0 a new gain

value can be written to the gain register via the serial inter-

face (header code 0101).

3

Inhibit black calibration

0

Allows automatic black calibration to be inhibited.

4

Auto exposure control enable

1

Allows automatic exposure control to be inhibited. The cur-

rent exposure value selected is frozen. Note that if auto-

matic exposure control is inhibited then automatic gain

control is also disabled. With AEC=0 a new exposure

value can be selected by writing to the coarse and fine

exposure registers via the serial interface (header codes

0011 & 0100).

5

Horizontal shuffle enable

0

Shuffles the read out of the horizontal shift register. Even

columns read out together then odd columns.

6

Vertical shuffle enable

0

Shuffles the readout of the vertical shift register. Even

lines read out together then odd lines.

7

Force black calibration

1

Requests a re-calibration of the black level while bit is low.

8

Clock divisor DIV0

0

System clock division: (see Note)

0,0=1; 0,1=÷2; 1,0=÷4; 1,1=÷8

9

Clock divisor DIV1

0

10

Internal Register

0

This bit must be set to 0 for correct sensor operation

11

Not used

0

Table 15 : Set-up code_1