Concurrent Versus Sequential Statements
The statements we have looked at so far are called concurrent statements.
- Each concurrent statement will synthesize to a block of logic.
Another class of VHDL statements are called sequential statements.
- Sequential statements can ONLY appear inside of a process block.
- A process block is considered to be a single concurrent statement.
- Can have multiple process blocks in an architecture.
- Usually use process blocks to describe complex combinational or sequential logic.