Output Signals; Pixel Clock; Line Valid Bit; Data Valid Bit - Basler L800k User Manual

2.5 Output Signals

The camera's output signals include a pixel clock, video data and video data qualifiers such as
line valid and data valid. Sections

2.5.1 Pixel Clock

As shown in Figure
(transmit clock) pin of the Camera Link transmitter. The pixel clock is used to time the sampling
and transmission of pixel data as shown in Figures
in L800 cameras requires pixel data to be sampled and transmitted on the rising edge of the
k
clock.
L801 / L802
k k
Note that the timing used for sampling the data at the Camera Link receiver in the
frame grabber varies from device to device. On some receivers, data must be sam-
pled on the rising edge of the pixel clock (receive clock) and on others, it must be
sampled on the falling edge. Also, some devices are available that allow you to se-
lect either rising edge or falling edge sampling. Please consult the data sheet for the
receiver you are using for specific timing information.

2.5.2 Line Valid Bit

As shown in Figures
Pixel data is only valid when this bit is high.

2.5.3 Data Valid Bit

The data valid bit indicates that valid pixel data is being transmitted. Pixel data is only valid when
the line valid bit and the data valid bit are both high.
BASLER L800
k
2.5.1
2-3 and in Table 2-3, the Camera Link pixel clock is assigned to the TxClkIn
/ L803 cameras operate with a 20 / 40 / 60 MHz pixel clock respectively.
k
2-6 and 2-7, the line valid bit indicates that a valid line is being transmitted.
Draft
through 2.5.4 describe the output signals.
2-6 and 2-7. The Camera Link transmitter used
Camera Interface
2-9