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DS90UB948-Q1: I2S FIFO underrun/overrun at the same time.

Part Number: DS90UB948-Q1

Hello,

My SerDes configuration is : DS90UB941 <=> DS90UB948.

DS90UB941 serializes video and audio stream over the FPD-Link III cable. The display panel is having DS90UB948 De-serializer and is attached to the board via FPD-Link III cable. I can see the output video on the display panel but unable to hear the audio. 
I want to transfer audio in data island transport mode. The Host McASP sends audio data with 2 TDM slots.

The Audio codec connected downstream with de-serializer is already configured for 48KHz and 24bit word size. My question is:

  1. I am getting UB948_REG_I2S_CONTROL 0x2B[2]=1 and 0x2B[3] = 1 which means I2S FIFO is underrun and overrun at the same time!! What might be the issue? Please help me find out the issue.

Thanks,

Saqib