SPRUJ28E November 2021 – September 2024 AM68 , AM68A , TDA4AL-Q1 , TDA4VE-Q1 , TDA4VL-Q1
The Tx clock stop interface allows the Tx portion of the UDMA to be gracefully commanded to shut down its operations and enter into an IDLE state so that the main clock (FICLK) can be stopped. When the tcs_clkstop_req input is asserted, the Tx portion of the UDMA will stop processing transmit packets/TRs for each channel at the next packet/TR boundary. Once all of the Tx channels have gracefully stopped transmission, the UDMA will assert the tcs_clkstop_ack output. Once the UDMA Tx engine has entered the IDLE state, it will remain there until the tx_clockstop_req is de-asserted.