CSG14K_CSG8K datasheet(33/113 Pages) AMSCO

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CSG14K_CSG8K

Functional Description

Datasheet

• PUBLIC

DS000571

• v1-00 • 2020-Dec-15

112

│ 32

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.

Figure 28:

Category

Description

Registers without category can be changed at any time, but might directly influence the sensor

execution.

SYNC

Registers are internally synchronized to start of frame (at the start of the GLOB state), so an entire

frame is always read with the same SYNC configuration. This means that the registers may be

updated at any time.

CONTEXT

Registers can only be changed in the non-active context (i.e. RW_CONTEXT differs from

ACTIVE_CONTEXT). These register can also be changed under the same conditions as DC, if

ACTIVE_CONTEXT is the same as RW_CONTEXT.

Can only be changed when sensor is in IDLE state, or in soft reset state.

RST

Only to be changed when sensor is in soft reset state.

Read-only register. All write operations are ignored.

Reading from a register is always allowed. When reading registers

of category ‘SYNC’, the last value

that was written to the register is read. The value read may

differ from the value that the sensor’s logic

is currently using, as SYNC registers are frame-synchronized.

Figure 29:

Frame Sync

Reg. Name

Bank

Addr

Bits

Def.

Description

DISABLE_FRAMESYNC

[0]

0: Enable

1: Disable

PARAM_HOLD

[0]

0: Registers are frame synchronized

1: Registers are not frame synchronized

The upload of 'SYNC' type registers can be constrained with the following registers:

If DISABLE_FRAMESYNC is set to '1', frame synchronization is disabled. Any uploads will take effect

immediately.

Frame synchronization only happens if PARAM_HOLD is '0'. When uploading a bunch of SYNC-type

registers together (for example, change a number of different YWIN settings), it is advised to set

PARAM_HOLD to '1' during the entire upload. This prevents a frame from being started with only half

of the required updates in case the frame start happened when the entire upload had not completed.

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