A high-speed CMOS circuit for 1.2-Gb/s 16*16 ATM switching |
| |
Authors: | Chemarin A Andre A Botta A Majos J Rainard J-L Teyssier H Thorel P |
| |
Affiliation: | CNET, Meylan, France; |
| |
Abstract: | The authors describe a 0.7- mu m CMOS asynchronous transfer mode (ATM) switch circuit of 350 K transistors, the kernel of a fully autonomous 16*16 ATM switching matrix devoted to telecommunications. This matrix is able to switch ATM multiplexes with a throughput of up to 1.2 Gb/s per access line, and was implemented using 16 receiver/transmitter circuits and a control circuit. The architecture of the ATM switch circuit is based on a large embedded and shared dual-access memory. Each chip processes 4-b slices of each incoming multiplex. Seven such chips working in parallel are enough to achieve standard ATM cell switching. Up-to-date test features, such as boundary scan, built-in self-test, and redundancy were implemented in the circuit.<> |
| |
Keywords: | |
|
|