CMV8000 datasheet(28/90 Pages) AMSOSRAM

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CMV8000

Functional Description

Preliminary Datasheet

• PUBLIC

DS000609

• v1-00 • 2019-Jun-12

│ 27

Category

Description

Registers

Can only be changed when the

sensor is IDLE or in FOT.

– 34, 35-38, 54, 80, 82[4:0],

118

Read-only register. All write

operations are ignored.

88-89, 90

7.2.6

Sensor Control Modes

Figure 22:

Control Mode Register

Bit Name

Address

Description

ext[0]

0: Internal mode

1: External mode

frames[15:0]

54-55

Set the amount of frames in

internal mode

Figure 23:

Control Modes

EXT

Name

External Control

(F_REQ pin)

Internal Control

Internal mode

Start of exposure

Length of exposure

Start of read-out

Read-out timing

External mode

Start of exposure

Start of read-out

Read-out timing

Control Mode 0: Internal Mode

In this mode, a single trigger is needed to request a frame (F_REQ), and the exposure time is set by

sensor registers 41 to 43. After a high state on the F_REQ pulse is detected, the sensor will start

exposure immediately. Using the register value, the sensor counts down to the end of the exposure

time, after which the pixels are sampled and prepared for read-out. This sequence is called the frame

overhead time (FOT). Immediately after the FOT, the frame is sent out. If more than one frame is

requested with the FRAMES register, the sensor times the start of the next exposure so that the

maximum frame rate is guaranteed.

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