Title :
A 22-Gb/s and over-33-mega-frame/s throughput bridge-function unit in a low-latency OLT LSI for the coexistence of 10G-EPON and GE-PON
Author :
Ohteru, Shoko ; Kawamura, Tomoaki ; Suto, Hiroki ; Urano, Masami ; Nakanishi, Mamoru ; Shibata, Tsugumichi
Author_Institution :
Microsyst. Integration Labs., Nippon Telegraph & Telephone Corp., Atsugi, Japan
Abstract :
A multifunctional bridge function unit (BRG) and buffer function unit were developed for the OLT LSI for the coexistence of 10G-EPON and GE-PON and implemented in 40-nm CMOS. The units comply with the 10G-EPON standard. The BRG features a high-speed search engine, dual-rate data processing, a low-latency datapath architecture, and a VLAN function. The MAC address search engine enables 22-Gb/s and 33-mega-frame/s throughput by the application of a hash function. The search engine for table look-up enables 11-Gb/s and 16.4-mega-frame/s throughput by the application of eight-frame parallel processing and a pipeline configuration. The full-wire rate throughput is achieved for 10- and 1-Gb/s frames simultaneously.
Keywords :
CMOS integrated circuits; bridge circuits; integrated optics; large scale integration; passive optical networks; CMOS process; GE-PON; MAC address search engine; VLAN function; bit rate 1 Gbit/s; bit rate 10 Gbit/s; bit rate 11 Gbit/s; bit rate 22 Gbit/s; buffer function unit; dual-rate data processing; eight-frame parallel processing; full-wire rate throughput; high-speed search engine; low-latency OLT LSI; low-latency datapath architecture; multifunctional bridge function unit; optical line terminal; passive optical network; size 40 nm; table look-up; throughput bridge-function unit; Clocks; Information filters; Large scale integration; Multiplexing; Search engines; Throughput;
Conference_Titel :
Solid State Circuits Conference (A-SSCC), 2011 IEEE Asian
Conference_Location :
Jeju
Print_ISBN :
978-1-4577-1784-0
DOI :
10.1109/ASSCC.2011.6123573
