SPRUIV7B May 2022 – September 2023 AM620-Q1 , AM623 , AM625 , AM625-Q1 , AM625SIP
The transmit data-ready interrupt (XDATA) is generated if the MCASP_XSTAT[5] XDATA bit is 1 and MCASP_XINTCTL[5] XDATA bit is enabled. The Section 12.1.1.4.10.1, Data Ready Status and Event/Interrupt Generation, provides details on when XDATA is set in the MCASP_XSTAT register.
A transmit-start-of-frame interrupt (XSTAFRM) is triggered by the recognition of a transmit frame sync.
A transmit-last-slot interrupt (XLAST) is a qualified version of the data-ready interrupt (XDATA). It has the same behavior than the data-ready interrupt, but is further qualified by having the data requested belonging to the last slot (the slot that just ended is the next-to-last TDM slot, the current slot is the last slot).