auda 1787 i2S ports

Dear Sir.

I would like to know 1787 I2S port   including port 0 and port 1.

Is both port can handle the I2S input and output ( bi-directional)  at the same time>??

We would like to connect  hybrid anc h/p to 1787 as codec and connect with other DSP 

the DSP and 1787 through I2S  ( FF mic left and right    and the resulting audio through port 0 I2S   stereo  bidirectional)

FB mic left and right through port1 I2S with data output to DSP..

Please let us know it is ok to work as this.?? and how about auda 1772??? can it be the same???

Thanks 

Soundanalyst