It is basic but sometimes forgotten. If you see a two FFs as synchronizer, it may or may not work. It depends on if the input signal is at least two cycles long to allow the synchronizer to capture it. Modern CDC tools such as spyglass can flag the issue.
DMA transfers that are descriptor-based require a set of parameters stored within memory to initiate a DMA sequence. The descriptor contains all of the same parameters normally programmed into the DMA control register set. However, descriptors also allow the chaining together of multiple…[Read more]