CSG14K_CSG8K datasheet(52/113 Pages) AMSCO

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CSG14K_CSG8K

Functional Description

Datasheet

• PUBLIC

DS000571

• v1-00 • 2020-Dec-15

112

│ 51

Figure 54:

Control Word

Name

Function

[0]

SYNC

Always '1'

[1]

DVAL

High when there is valid pixel data on DATAx_OUT.

(Stays high for entire row of valid data)

[2]

FVAL

Goes high together with first DVAL of frame. Goes low together with last DVAL of frame.

(Frames valid frame)

[3]

SVAL

High when there is valid statistics data on DATA0_OUT

[4]

OBVAL

High when there is valid OB pixel data on OB_OUT

[5]

EXP_L

High when exposure group 'L' is integrating light

[6]

EXP_S

High when exposure group 'S' is integrating light

[7]

GLOB

High when sensor is in GLOB state

[8]

NSRE

(optional) High when it is Not Safe to Request a new Exposure

[9]

NSRF

(optional) High when it is Not Safe to Request a new Frame

[10:11]

N/A

Always ‘0’

Figure 53 illustrates how the control word is transferred in line with pixel data. At the controller side,

the data on CTR_OUT should be de-serialized like any other data channel. In the parallel domain, the

various bits of the word can be used to extract status information on the sensor.

The figure below shows the timing of the various bits of the control word in an example frame. The

timing of the bits is shown in the parallel domain. Some remarks concerning the figure:

●

Sensor is in full external control mode

●

Dual exposure time is active (EXP_L is different from EXP_S)

●

Only 2 histograms of image statistics are requested (typically there will be 0, 1 or 5)

●

The frame size (y-window settings) is 3 rows.

●

The optional NSRE and NSRF bits are disabled and not shown. These bits are discussed in

more detail in 7.8.3.

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