
Connect Tech FreeForm/PCI-104 User Manual
Revision 0.07 36
Reference Design
The top level reference design contains a generic parameter which will correctly configure the FPGA
for Revision B or Revision C. A separate constraint file UCF is created for Revision B and Revision C,
which need to be added to the ISE project manually.
Local clock generated in
FPGA and forwarded to PLX
bridge. Clock feedback to
FPGA via pin Y21.
Dedicated oscillator
generates local bus clock.
Clock is driven to FPGA on
pin Y21, which drives an
internal global clock net.
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