2.4.2. 40GBASE-KR4 IP Core Variation
Illustrates the top-level modules of the LL 40GBASE-KR4 IP core variation testbench. To support the simulation of auto-negotiation, the testbench uses two instances of the IP core instead of configuring the IP core in loopback mode.
Figure 9. 40GBASE-KR4 LL 40G Ethernet IP Core Testbench
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