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4.2i Foundation - Does Foundation 4.2i support functional or timing simulation of the CLKDLL?
Keywords: simulation, functional, timing, CLKDLL
Does Foundation 4.2i support functional or timing simulation of the CLKDLL?
Foundation does not support the CLKDLL in functional simulation. In order to perform a functional simulation of your design, apply the appropriate stimulus to the CLKDLL outputs.
Foundation does support the CLKDLL in timing simulation; however, two known limitations are discussed the following solutions:
(Xilinx Answer 6966): "The CLKDV_DIVIDE value is not applied during timing simulation"
(Xilinx Answer 8398): "Timing simulation of Virtex DLL fails when the input frequency is higher than 100MHz"
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