List of Messages |
CAUSE: You assigned the specified enhanced PLL to use zero delay buffer or external feedback mode. However, the Fitter cannot place the specified PLL because the input clock of the specified PLL is not an I/O node. Input clocks of PLLs in zero delay buffer or external feedback mode must must be fed by an I/O node.
ACTION: Modify your design so that an I/O node feeds the input clock port of the specified PLL.
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