TX Polarity Control

Versal ACAP GTM Transceivers Architecture Manual (AM017)

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1.0 English

The GTM transceiver includes a TX polarity control function to invert outgoing data from the PCS before serialization and transmission. If TXP and TXN differential traces are accidentally swapped on the PCB, this block can be used to reverse the GTM output polarity. The TX polarity control can be accessed through the CH*_TXPOLARITY input from the interconnect logic interface. It is driven High to invert the polarity of the outgoing data.