Editing VHDL (section)

===Latch template===
A [[transparent latch]] is basically one bit of memory which is updated when an enable signal is raised. Again, there are many other ways this can be expressed in VHDL.

<syntaxhighlight lang="vhdl">
-- latch template 1:
Q <= D when Enable = '1' else Q;

-- latch template 2:
process(all)
begin
    Q <= D when(Enable);
end process;
</syntaxhighlight>