20.5.7 DMA Operation

The DMA can be used to transfer the data without the participation of the CPU. The I2CxTXIF and I2CxRXIF interrupts can be used to trigger DMA.

Note:
  1. Packet size (PSZ) should be configured before data transmit/receive.
  2. ND/A should be configured accordingly to indicate address/data transmission.
  3. It is recommended to use Smart mode when using DMA to reduce CPU interaction.