Serial Ports support for ADAU1467 & ADAU1462

As per the ''Selection table for SigmaDSP audio processors' Serial I/O Ports supported for ADAU1467 & ADAU1462 is mentioned as 12 ports for input and output.

But while referring Data sheet, serial ports supported is 4 only. Please clarify the same.

Regards,

Kalaiselvi