A high-speed gearbox based on phase independent architecture for 100G Ethernet physical coding sublayer

Author

Ruan Weihua ; Hu Qingsheng

Author_Institution

Inst. of RF-&OE-lCs, Southeast Univ., Nanjing, China

fYear

2015

fDate

27-29 May 2015

Firstpage

251

Lastpage

254

Abstract

This paper presents a phase independent 66:8 gearbox design for 100GE PCS TX system, compatible with IEEE P802.3ba standard. By using a kind of phase independent architecture, the gearbox can convert data width from 66-bit to 8-bit stably. In addition, architecture optimization and pipeline technique are also applied to increase the working speed of the gearbox circuit. The optimized PCS TX circuit including the 66:8 gearbox has been implemented and fabricated by using semicustom design method based on 0.18μm CMOS standard cell library. Post simulation results show that the optimized circuit can work well at a frequency of 700 MHz, meeting the 100GE PCS design requirements.

Keywords

CMOS integrated circuits; local area networks; network coding; 100G Ethernet physical coding sublayer; 100GE PCS TX system; CMOS standard cell library; IEEE P802.3ba standard; architecture optimization; frequency 700 MHz; gearbox circuit; high-speed gearbox; pipeline technique; Clocks; Computer architecture; Optimization; Radiation detectors; Shift registers; Simulation; 100GE; PCS; gearbox; phase independent; semicustom;

fLanguage

English

Publisher

ieee

Conference_Titel

Information and Communication Technology (ICoICT ), 2015 3rd International Conference on

Conference_Location

Nusa Dua

Type

conf

DOI

10.1109/ICoICT.2015.7231431

Filename

7231431