Title :
An evolutionary VLSI chip set for ISDN
Author :
Rabaey, D.H. ; Sallaerts, D. ; Dierckx, R. ; Rahier, M.
Author_Institution :
Alcatel Bell Telephone, Antwerpen, Belgium
Abstract :
The authors describe a cost-effective and flexible approach to introducing the ISDN (integrated-services digital network) into System 12 with respect to CMOS and nMOS integrated circuits. The chip set includes three transmission devices for basic or primary rate access: a two-wire U-interface transceiver using the 4B3T line code, a four-wire transceiver and the PRA trunk logical interface. The layer 2 function is covered by a device including functions for link layer protocols on the D-channel or on the B-channel for both LAPD and CCITT No.7 signaling schemes. An on board controller interface provides the control and transmission interface between the line modules and the switching network. The set is completed with a multistandard rate adapter for terminal adapter application.<>
Keywords :
CMOS integrated circuits; ISDN; VLSI; field effect integrated circuits; 4B3T line code; Alcatel; B-channel; CCITT No.7 signaling schemes; D-channel; LAPD; PRA trunk logical interface; System 12; VLSI chip set; basic rate access; control and transmission interface; digital subscriber line transceivers; four-wire transceiver; integrated-services digital network; layer 2 function; line modules; link layer protocols; multistandard rate adapter; on board controller interface; primary rate access; switching network; terminal adapter application; transmission devices; two-wire U-interface transceiver; Access protocols; Circuits; Clocks; Design automation; ISDN; Packet switching; Silicon carbide; Transceivers; Very large scale integration; Wire;
Conference_Titel :
Circuits and Systems, 1988., IEEE International Symposium on
Conference_Location :
Espoo, Finland
DOI :
10.1109/ISCAS.1988.15056
