This anomaly applies to IC Rev. Engineering A, build codes QFAA-AA0, QFAA-AC0, CGAA-AA0.
END event is generated before ENDTX.
TXD.MAXCNT > RXD.MAXCNT
END is unreliable in determining end of SPI transaction.
Use ENDTX and/or ENDRX events instead of the END event.