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T4240 10GBase-KR configuration

Question asked by Mikle Samarkin on Aug 14, 2019
Latest reply on Aug 22, 2019 by Yiping Wang

Hello everyone!

We have 10G link between FPGA and T4240 through backplane. Now we are trying to configure 10GBASE-KR.

In Reference Manual XFI/10FBase-KR said modified, Transmit Equalization Control Register 0 LNnTECR0, following the procedure in Lane Reset and Reconfiguration. Next no visibility that 10GBase-KR is on. There is no trying Auto-Negotiation or Link-training from T4240. Also reading mdio registers  MDIO_XFI_PMD_CR1 and  MDIO_XFI_10GKR_PMD_CR indicate that 10GBase-KR not enable.

What we need to do, or which registers can help us to figure out our issue?