Figure 351. S/Pdif Overrun Error When Rxsteo = 0 - ST STM32F446 Series Reference Manual

SPDIF receiver interface (SPDIFRX)
If the RXSTEO bit is set to 1, it means that stereo data are transported, then the SPDIFRX
has to avoid misalignment between left and right channels. So the peripheral has to drop a
second sample even if there is room inside the RX_BUF in order to avoid misalignment.
Then the incoming samples can be written normally into the RX_BUF even if the OVR flag is
still pending. Refer to
The OVR flag is cleared by software, by setting the OVRCF bit to 1.
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Figure 351. S/PDIF overrun error when RXSTEO = 0

Figure 352.
RM0390 Rev 4
RM0390