Variation tolerant digitally assisted high-speed IO PHY. - Eduard Roytman; Mali Nagarajan; Rahul Shah 004; Xin Ma; Ronald Bedard; Kambiz Munshi; Russell Iknaian; Fengxiang Cai; Jian Xu; Gayathri Sridharan Devi; Pradeep Vempada (ESSCIRC, 2011)