SPRUJ28E November 2021 – September 2024 AM68 , AM68A , TDA4AL-Q1 , TDA4VE-Q1 , TDA4VL-Q1
The VBUSM.C interface does not natively define a mechanism for priority escalation, since the cepriority signal is only valid when a command is sent, and can otherwise be ignored. To support this feature this bridge supports updating the cepriority output even if there is no valid command, so identify the highest priority of any pending commands when the bridge cannot sent a command, such as due to a lack of credits. The VBUSM.C consumer can assume the cepriority output from this bridge is always valid every cycle, and use the cepriority along with the priorities of all pending commands. When there are no pending commands, the cepriority output will be the lowest priority, 7.