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Application NoteNxp

Interfacing the NXP MC68360 (QUICC) to T1/E1 Systems

Technical guide for interfacing the NXP MC68360 QUICC to T1/E1 systems using the Serial Interface and Time Slot Assigner for multiplexed TDM communications.

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Overview

This application note (AN2031) provides detailed methodologies for connecting the NXP MC68360 (QUICC) communications controller to T1/E1 digital carrier systems. It explains how to utilize the controller's Serial Interface (SI) and Time Slot Assigner (TSA) to manage multiplexed high-speed serial data streams. The document details the configuration of Serial Communication Controllers (SCCs) and Serial Management Controllers (SMCs), programming the SI RAM for static or dynamic frames, and clocking requirements for supporting data rates up to 10 MHz. It covers compatibility with various standards including DS1, DS2, E1, E2, and ISDN formats, as well as specific carrier systems like SLC-96 and T1DM.

Use Cases

  • T1/E1 Multiplexers
  • Digital Access Cross-Connect Systems (DACS)
  • ISDN Primary and Basic Rate Interfaces
  • Network Bridges and Routers
  • PBX Systems
  • Digital Subscriber Carriers

Topics

MC68360
QUICC
T1/E1 Interface
Time Slot Assigner
Serial Interface
TDM
SCC
SMC
ISDN
Digital Cross-Connect
Multiplexing
DS1

Referenced Parts

2180A

Dallas Semiconductor

a T1 transceiver such as the 2180A made by Dallas Semiconductor and Crystal Semiconductor is used.

MC145480

NXP

two MC145480 PCM voice codecs

MC145532

NXP

one MC145532 ADPCM encoder/decoder

MC145540

NXP

one MC145540 ADPCM voice codec

MC68360

NXP

The introduction of the Freescale MC68360 communications controller offers system designers exceptional flexibility and control of communications systems.

2080A

Dallas Semiconductor

connects RFSYNC of 2080A to L1RSYNCA

Interfacing the NXP MC68360 (QUICC) to T1/E1 Systems | Design Resources