SPRUIV7B May 2022 – September 2023 AM620-Q1 , AM623 , AM625 , AM625-Q1 , AM625SIP
In RX mode, the PERIF<m>_CLK will start running whenever the RX_EN is set. Note that the PRU firmware in this mode is responsible for any delay conditions.
The hardware can also auto-enable RX mode at the end of a TX transaction. The PRU_ICSS_PRU0_ED_CHm_CFG1_REG[31-16] PRU0_ED_RX_EN_COUNTERm (where n = 0 or 1 and m = 0 to 2) is used to program a delay between the last TX bit sent and when the RX_EN is set.