CLE bit documentation status

[litghost]

Most CLE bits are documented, however there is at least 1 bit that is not documented, and 1 case that is not understood.

Undocumented bits:

• LCLKINV bit is not solved for

Case not understood:

• The bits around DI4 <-> DI4/EX and CI_TOP.EX don't behave in an obvious many.

[hansemro]

According to UG574 (v1.5) page 25, LCLK is a dedicated clock input for Distributed RAM. LCLKINV bit is then used when distributed RAM requires inverted clock.