The silicon anomaly list for the SC587 describes an anomaly with the SPDIF receiver :
73. 20000094 - SPDIF Receiver Output Clock Is Unreliable:
When operating properly, the SPDIF receiver output clock (SPDIF_RX_TDMCLK_O) frequency is 256 times the sampling rate. The SPDIF
receiver, however, fails to maintain this relationship; thus, the SPDIF_RX_TDMCLK_O output clock is unreliable.
Do not use the SPDIF_RX_TDMCLK_O output clock.
APPLIES TO REVISION(S):
Does that mean I effectively can't use the SPDIF to receive a signal from an externally clocked device ? Ie recovering a clock from the SPDIF Rx stream ?