1.5.4.3.1 Custom Protocol Settings

Full duplex jitter attenuation solution is available for custom protocols in Libero SoC v12.3 or later. This support is for one refclk and one data rate allowing user the flexibility to create designs requiring customized settings not already supported by the presets.

The user must enter the reference clock frequency and clock source information for the correct generation of the jitter cleaning configuration. The reference clock source selection determines the input clock ports exposed on the component (See Figure   2). Users are required to connect the ports in the top-level to the correct XCVR lane. The use of the JAPLL with custom settings require the user to use the JA clock frequency for the associated lane as it appears in the RX JA clock frequency dialogue box of the XCVR configurator (See Figure   3).