With the exception of the DMA4_CCRi[7] ENABLE bit and the DMA4_CDPi[7] PAUSE_LINK_LIST bit during a linked-list transfer (descriptor load phase or data load phase), avoid programming any register through the configuration port.
Before enabling any linked-list transfer, ensure that all global registers and all registers in the descriptor are initialized. Some static channel registers (registers that are not updated by the descriptor to be loaded) must also be initialized correctly:
For type 2, the following registers must be initialized with consistent values: