The TX delay align and phase interpolator (TX DAPI) shown in TX Fabric Clock Output Control can either be enabled or bypassed to provide the CH*_TXOUTCLK.
TX_DA_BYP determines the clock path and is set based on application requirements:
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0
: The TX DAPI clock path is used to generate the CH*_TXOUTCLK. In this use case, the TX DAPI has a built-in divide-by-2 that is always present. The divider values for TX DA DIV should be left to the default values from the Wizard example design. -
1
: The clock path where TX DAPI is bypassed generates the CH*_TXOUTCLK. In this use case, the TX DAPI BYPASS DIV divider value should be left to the default values from the Wizard example design.