ID:176238 Start inferring scan chains for DSP blocks

CAUSE: Register packing is starting to infer scan chains for DSP blocks. Although the DSP block has internal registers, synthesis may choose to leave any registers external to the DSP blocks. If synthesis chooses to leave these registers outside the DSP block, the Fitter will try to pack these cells during register packing to improve timing and density. In this phase, the Fitter will try to pack registers into the DSP blocks to take advantage of the dedicated register scan chain circuitry inside the DSP block. The dedicated scan chains are often used in FIR filter designs.

ACTION: No action is required.