Preliminary
General Description
The Karbon
KBN-1-8
BitFlow, Inc.
Version F.0
The Full CL VGF can accept input data at up to 85 Mhz.
The following paragraphs are a short description of each block.
The Camera Link Interface block implements the CL full configuration This block has
the Channel Link ICs, the Camera Control drivers and the serial communication tran-
ceivers.
The MUX block packs and assembles the data from the Camera Link block before it is
pushed into the FIFO. This block re-arranges on-the-fly the data from the camera’s
taps so that the data is written in raster scan format in the host memory.
The FIFO block, ?? Kilobytes deep, decouples the camera from the DMA engine. It is
implemented with dual ported memories.
The Camera Control block handles both camera synchronization as well as external I/
O. The block contains the CTABs which are uses to synchronize acquisition with the
camera, determine which pixels/lines get acquired and which do not, generate con-
trol signals to the camera and to extenal devices. This block also handls start/stoping
acquisition based on triggers and encoders.
The PCI interface block handles host reads/writes to/from the board. These reads/
writes are used to program the board, and to control its modes. This block is also
responsible for DMAing image data to the host memory (or other devices). The DMA
engine uses chaining scatter-gather DMA, which can DMA a virtually unlimited
amount of data to memory without using any CPU cycles.
There is an on-board UART, as required by the CL specification. There is only one
UART on the Karbon platform. It can be switch between the various CL connectors for
programming each camera in turn.
The IO connector block has transmitters/receivers to communicate with external
industrial equipment (triggers, encoders, light strobes etc.).
CL1 and CL2 are the two Camera Link connectors. CL1 is the main Camera Link con-
nector. It carries data bits 0-23, Camera Controls and serial data port. CL2 is the auxil-
iary connector. It carries data bits 24-63, for the full mode and bits 24-79 in ten-tap
mode.
1.3.2 The Base CL Virtual Frame Grabber (Base CL VGF)
Figure 1-5 illustrates the Full CL virtual frame grabber (VFG) that is support on the Kar-
bon-CL hardware. Since the Base CL interface requires one CL connectors, the KBN-
PCE-CL2-D can support two of these virtual frame grabbers, and the KBN-PCE-CL4-D
can support four of these virtual frame grabbers.
Summary of Contents for KBN-CL4-2.51-SP
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