SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
After a hardware reset, program all fields in the logical channel registers to default values for any channels used, because most fields are undefined following reset.
Before programming any DMA transfers, the priority arbitration rate and the maximum FIFO depth must be configured through the DMA4_GCR register, and any required interrupts must be enabled through the DMA4_IRQENABLE_Lj registers and the logical channel DMA4_CICRi registers.
Software clears the DMA4_CSRi register and the IRQSTATUS bit for the different interrupt lines before enabling the channel.