A peripheral DMA controller (PDC) is a feature found in modern microcontrollers.
This is typically a FIFO with automated control features for driving implicitly included modules in a microcontroller such as UARTs.
This takes a large burden from the operating system and reduces the number of interrupts required to service and control these type of functions.
This microcomputer- or microprocessor-related article is a stub.
You can help Wikipedia by expanding it.