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CSG14K_CSG8K

Functional Description

Datasheet

• PUBLIC

DS000571

• v2-01 • 2023-Feb-10

113

│ 94

7.8.2

In-Line Streaming Mode

Figure 120:

In-Line Streaming Mode Registers

Bank

Addr

Bits

Description

CTRL_MODE

[2:0]

4: In-line streaming mode

EXP_TIME_INL

12-13

[13:0]

Exposure time in in-line streaming mode. Expressed as

multiples of ROW_LENGTH

ROW_LENGTH

18-19

[13:0]

See section 7.5.2

YWIN_ENA

28-29

[9:0]

See section 7.5.3

YWINi

18+4×i

[30:0]

See section 7.5.3

The default frame sequence contains a number of overhead rows (see tread in section 7.5.1,

subsection “Minimal Frame Time Constraint”). Some of the overhead rows, like tstats can be

skipped, others not. Under nominal conditions, these overhead rows do not have a significant

impact on the total throughput because their amount is small compared to the number of valid

rows being read (tfval).

If the number of valid rows being read is small ("line scan mode"), however, these overhead

rows do have a significant impact on the maximum achievable frame rate. The in-line

streaming mode removes these overhead rows to achieve a higher frame rate.

Equation 16:

�� = ��glob + �� × ��

In-line streaming mode is typically used with small Y-windows. In this case, the GLOB length

can be reduced to further increase the frame rate.

The in-line streaming mode is enabled by setting the CTRL_MODE register to 4. Just like in

normal streaming mode, the stream is started with a rising edge on REQ_EXP. The stream

stays active forever until externally stopped (with a software non-blocking HALT command or

(soft) reset).

The figure below shows the state diagram of the in-line streaming mode.

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