SPRUIV7B May 2022 – September 2023 AM620-Q1 , AM623 , AM625 , AM625-Q1 , AM625SIP
After a reset or a previous teardown operation but before receiving packets on a channel the host must initialize the channel’s Rx Port DMA State. The host initializes the channel Rx Port DMA State by writing to the Rx Channel Configuration Registers. The Host may choose to write the enable bit in the Rx Global Channel Configuration Register (<RCHANRT[a]_RRT_CTL > [31] RX_ENABLE) at the same time or after it has written all of the channel parameters but note that every write to the Rx Channel Configuration Registers will overwrite the channel state for all bytes that are enabled for the write transaction.