SPRUJ28E November 2021 – September 2024 AM68 , AM68A , TDA4AL-Q1 , TDA4VE-Q1 , TDA4VL-Q1
The receive data-ready interrupt (RDATA) is generated if the MCASP_RSTAT[5] RDATA bit is 1 and MCASP_RINTCTL[5] RDATA bit is enabled. The Section 12.5.2.3.11.1, Data Ready Status and Event/Interrupt Generation, provides details on when the MCASP_RSTAT[5] RDATA bit is set.
A receiver start of frame (RSTAFRM) interrupt is triggered by the recognition of a receiver frame sync.
A receiver last slot (RLAST) interrupt is a qualified version of the data ready interrupt (RDATA). It has the same behavior as the data ready interrupt, but is further qualified by having the data in the buffer come from the last TDM time slot (the slot that just ended was last TDM slot).