Programming Manual
PHYTEC Messtechnik GmbH 2008 L-720e_0
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The following
video format converter
produces the data formats,
which are provided by the pciGrabber-4x4. Via a datamultiplexer the
required format is selected and stored in the 630 Byte FIFO memory.
The FIFO is an interface to the following PCI-bus interface, which is
responsible for the data transfer through the PCI-bus.
The PCI Express-to-PCI-Bridge changes the PCI bus in an PCI
Express bus.
The image data are transferred by DMA to the main memory of the
PC. For each field a separate DMA-channel is used. The transfer can
be organized in different ways. For this reason a
pixel instruction list
for each field is used, which is denoted
RISC-Program,
for the
PCI-controller of the pciGrabber-4x4.
Via the PCI Express-controller the access to the
local registers
is
managed. This allows the adjustment of the parameters of the Grabber
and the acknowledgement of the actual status. This registers are also
used to actuate the I/O- lines defined by the user, and to drive the
I²C-interface integrated in the Grabber.
