MC92501 is the second generation ATM cell processor in MotorolaÕs 92500 series. It provides comprehensive ATM layer functions, and is compliant with UTOPIA Level 2 physical and switch interfaces.
The Motorola MC92501 is a second-generation Asynchronous Transfer Mode (ATM) layer device designed for use in ATM switches. It combines dedicated high-performance ingress and egress cell processors with UTOPIA Level 2-compliant physical (PHY) and switch interface ports to handle broadband ISDN applications according to ATM Forum, ITU, and Bellcore specifications.
This document outlines the new features of the MC92501 compared to its predecessor, including support for ABR Relative Rate Marking, selective discard capabilities, and enhanced microprocessor interfaces. It serves as a technical reference providing complete specifications when combined with the MC92500/D datasheet.
It implements ATM Layer Functions for Broadband ISDN According to ATM Forum UNI 4.0 and TM 4.0 Specifications, ITU Recommendations, and Bellcore Recommendations.
The device supports full-duplex operation at data rates up to 155 Mbit/sec.
The device supports up to 16 Physical Links using dedicated ingress/egress MultiPHY control signals.