COM20051I - SMSC Corporation

COM20051I Integrated Microcontroller and ARCNET (ANSI 878.1) Interface

The COM20051I is a low-cost, highly-integrated microcontroller incorporating a high-performance network controller based on the ARCNET Token Bus Standard (ANSI 878.1). The COM20051I is based around the popular Intel 8051 architecture. The device is implemented using a microcontroller core compatible with the Intel 80C32 ROMless version of the 8051 architectu.

Features

!" High Performance/Low Cost !" Microcontroller Based on Popular 8051 Architecture !" Intel 8051 Instruction Set Compatible !" Drop-In Replacement for 80C32 PLCC !" Network Supports up to 255 Nodes !" Powerful Network Diagnostics !" Maximum 507 Byte Packets !" Duplicate Node ID Detection !" Self-Configuring Network Protocol !" Retains all 8051 Peripherals Including Serial I/O and Two Timers !" Utilizes ARCNET Token Bus Network Engine !" Requires No Special Emulators !" 5 Mbps to 156 Kbps Network Data Rate !" Network Interface Supports RS-485, Twisted Pair, Coaxial, and Fiber Optic Interfaces !.