Christopher J. Abel is a Director of Engineering at Broadcom Ltd,
responsible for analog and mixed-signal design for SerDes IP in the Data
Controller Division. He has focused on analog and mixed-signal IC design
for more than 20 years, and on SerDes design for the last 15 years. He
holds more than 20 US patents in the areas of analog design, data converters,
and SerDes. Chris received the Ph.D. degree in electrical engineering from The
Ohio State University, Columbus, OH, USA, in 1995.
PCIe Gen4 enables new wave of innovation to guide inner-loop SerDes optimization assisted by outer-loop system optimization. This paper introduces an outer-layer equalization scheme for managing SerDes inner-layer equalization to optimize overall system-level aggregate performance.