Notes - 3.1 English

UltraScale+ Devices Integrated 100G Ethernet Subsystem Product Guide (PG203)

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3.1 English

Altering the value of CTL_TX_VL_LENGTH_MINUS1 and CTL_RX_VL_LENGTH_MINUS1 from the default value of 0x3FFF will violate the IEEE 802.3 spec.

Decreasing the AM spacing will result in less than 100GE bandwidth being available on the link.

This change can be made only in simulation. For a design to work in hardware, the default value of 0x3FFF must be used.

Full rate simulation without the SIM_SPEED_UP option should still be run.

SIM_SPEED_UP is available only when running RTL simulations. The option is not available for post-synthesis or post-implementation simulations.