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CSG14K_CSG8K

Functional Description

Datasheet

• PUBLIC

DS000571

• v1-00 • 2020-Dec-15

112

│ 38

The control mode is set with the CTRL_MODE register, as listed in Figure 36.

Figure 36:

Control Modes

CTRL MODE

Name

External Control

Internal Control

Full external

Start of exposure.

End of exposure (starting readout).

Readout details.

Programmed external

Start of exposure.

Length of exposure.

Readout details.

Triggered internal

A finite sequence of 1 or more consecutive frames.

Length of exposure.

Frame rate.

Sequence length.

Readout details.

Streaming

An infinite sequence of consecutive frames.

Length of exposure.

Frame rate.

Readout details.

In-line streaming(1)

(1)

The in-line streaming mode is a special case, dedicated to readout with v

ery small window sizes for “line scan”-like

applications. As it differs quite a lot from the other control modes, it is only mentioned here for completeness' sake and

will be further detailed in section 7.8.2.

Each of these control modes is introduced in one of the following sections.

Control Mode 0: Full External

In the Full External control mode, the exposure timing is fully controlled with the sensor input pins:

●

A rising edge on REQ_EXP moves the sensor to the EXPOSURE state

●

A rising edge on REQ_FRAME moves the sensor to the GLOB state, which will be

automatically followed by READOUT.

The length of the EXPOSURE state will exactly match the time between the rising edges of both

triggers.

In the figure below, the state diagrams of sequential and pipelined operation are annotated with the

external control events.

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