SDI II IP Core - HD-SDI dual link to 3G-SDI conversion

Hi,

I have got a question to the SDI II IP Core. I want to operate it in HD-SDI Dual Link to 3G-SDI Conversion Mode.

The documentation states the following:

So, my understanding is to have 2x synchronous HD-SDI streams as an input. And the SDI II IP Core will generate a single 3G-SDI data stream from this data.

Is the block “Multiplexing” part of the SDI II IP Core?

I tried to configure the SDI II IP Core for this purpose, as shown in the figure below. My second question is, why do I have two SDI outputs? “sdi_tx” and “sdi_tx_b”?

I expected only one output with a multiplexed data stream.

Can you please explain?

Thanks and best regards,

David