UltraScale+ Devices Integrated 100G Ethernet Subsystem v2.0 IP Product Guide - 2.0 English - Provides a high performance, low latency 100 Gb/s Ethernet port that allows for a wide range of user customization and statistics gathering. The dedicated block provides both the 100G MAC and PCS logic with support for IEEE 1588-2008 two-step hardware timestamping.