dffunmap - unmap clock enable and synchronous reset from FFs¶
yosys> help dffunmap¶
dffunmap [options] [selection]
This pass transforms FF types with clock enable and/or synchronous reset into their base type (with neither clock enable nor sync reset) by emulating the clock enable and synchronous reset with multiplexers on the cell input.
unmap only clock enables, leave synchronous resets alone.
unmap only synchronous resets, leave clock enables alone.