The software can enable one or more channels at any time using the following enable sequence. •Setup channel mode (simple or scatter gather mode). •Set the ZDMA_CH_{DATA, DSCR}_ATTR attribute registers. •Setup DMA mode. °Simple mode, program the DSCR registers. °In scatter gather mode, program the DSCR in memory and program the DSCR start address register. •Set enable bit in the ZDMA_CH_CTRL2 register. This provides a trigger to the DMA channel.