11.1.4 Transfer Mode

The DMA Controller supports four types of data transfers, based on the volume of data to be moved for each trigger.

• One-Shot: A single transaction occurs for each trigger.
• Continuous: A series of back-to-back transactions occur for each trigger; the number of transactions is determined by the DMACNTn transaction counter.
• Repeated One-Shot: A single transaction is performed repeatedly, once per trigger, until the DMA channel is disabled.
• Repeated Continuous: A series of transactions are performed repeatedly, one cycle per trigger, until the DMA channel is disabled.

All transfer modes allow the option to have the source and destination addresses, and counter value, automatically reloaded after the completion of a transaction.