MC143120B1

ARCHIVE INFORMATION ARCHIVE INFORMATION MOTOROLA SEMICONDUCTOR TECHNICAL DATA Neuronâ Chip Distributed Communications and Control Processor The MC143120 is a communications and control processor which enables the development of interoperable products. It provides systems designers with many features to accelerate product development for distributed sense and control applications. Services at every layer of the OSI networking model are implemented in the included LonTalkâ Þrmware-based protocol and are easily and optionally invoked. In addition, 34 I/O models are integrated with hardware to provide simpliÞed sense and control device interfacing. The MC143120 is designed for maximum clock operation of 10 MHz over a temperature range of Ð 40 to + 85°C including EEPROM writes. ¥ Three 8-Bit Pipelined Processors for Concurrent Processing of Application Code and Network Packets ¥ 11-Pin I/O Port Programmable in 34 Modes for Fast Application Program Development ¥ Two 16-Bit Timer/Counters for Measuring and Generating I/O Device Waveforms ¥ 5-Pin Communications Port That Supports Direct Connect and Network Transceiver Interface ¥ 1024 Bytes of Static RAM for Buffering Network and Application Data ¥ 512 bytes of EEPROM with On-Chip Charge Pump for Address, Binding Data, and Application Code ¥ Programmable Pull-Ups on IO4 Ð IO7 and 20 mA Sink Current on IO0 Ð IO3 ¥ Unique 48-Bit ID Number Redundantly Stored in Every Device ¥ 10 Kbyte ROM ¥ 32-Pin SOG Package ¥ Low Operating Current 15...