CSG14K_CSG8K datasheet(33/114 Pages) OSRAM

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CSG14K_CSG8K

Functional Description

Datasheet

• PUBLIC

DS000571

• v2-01 • 2023-Feb-10

113

│ 32

Figure 27:

Context Switching Registers

Bank

Addr

Pos

Description

ACTIVE_CONTEXT

N/A

[7:0]

0: Use context A

1: Use context B

RW_CONTEXT

N/A

[7:0]

0: Access context A

1: Access context B

PARAM_HOLD

[0:0]

Must be set to ‘1’ during

the new context upload.

See detailed procedure

below

DISABLE_FRAMESYNC

[0:0]

Must be set to ‘0’ for

on-the-fly context

switching.

The figure below shows how to upload a new context B and achieve a seamless context

switch from context A to context B while acquiring frames (for example in streaming mode).

Figure 28:

Context Switch Procedure

(1)

DISABLE_FRAMESYNC must be set to ‘0’ first to guarantee uninterrupted frame acquisition

(2)

Then set RW_CONTEXT to the inactive context (B in this example)

(3)

Set PARAM_HOLD to ‘1’, followed by all modifications to context B registers.

(4)

The setting of the new ACTIVE_CONTEXT can be done at any time, while PARAM_HOLD is ‘1’

(5)

When all uploads to context B are done, setting

PARAM_HOLD back to ‘0’ will initiate a new frame using the

exposure settings of context B, at the first frame time possible, while finishing the readout of the last frame

with context A settings in parallel.

The registers are grouped into various categories, based on when they may or may not be

updated. The category for every individual register can be found in section 8. The table below

explains the details of the various categories.

DISABLE_FRAMESYNC

ACTIVE_CONTEXT

Effective Frame exposure settings

RW_CONTEXT

Effective Frame readout settings

PARAM_HOLD

MODIFICATIONS

Context B register

settings

CSG14K_CSG8K Datasheet(PDF) 33 Page - OSRAM GmbH

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