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COM20051+ Datasheet(PDF) 1 Page - SMSC Corporation

No. de Pieza. COM20051+
Descripción  Integrated Microcontroller and Network Interface with Watchdog Timer and A/D Converter Interface
Descarga  92 Pages
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Fabricante  SMSC [SMSC Corporation]
Página de inicio  http://www.smsc.com
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COM20051+ Datasheet(HTML) 1 Page - SMSC Corporation

 
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COM20051+
Integrated Microcontroller and Network
Interface with Watchdog Timer and A/D
Converter Interface
FEATURES
• Low Cost
• Microcontroller Based on Popular 8051
Architecture
• Intel 8051 Code Compatible
• 68 Pin PLCC
• Network Supports up to 255 Nodes
• Powerful Network Diagnostics
• Maximum 512 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
• Receive All Mode Allows Any Packet to Be
Received
• On-Board Programmable Watchdog Timer
• Analog Data Acquisition Port
-
Interfaces to Any A/D Converter up to
16 Bits Wide
-
Sampling Rates from 1 s to 100ms
Possible
-
Decouples 80C32 from Repetitive
Sampling Tasks
GENERAL DESCRIPTION
The COM20051+ is a low-cost, highly-integrated
microcontroller
incorporating
a
high-
performance network controller based on the
ARCNET Token Bus Standard (ANSI 878.1).
The COM20051+ is based around the popular
Intel
8051
architecture.
The
device
is
implemented
using
a
microcontroller
core
similar to the Intel 80C32 ROMless version of
the 8051 architecture. The COM20051+ is ideal
for distributed control networking applications
such as those found in industrial/machine
controls, building/factory automation, consumer
products, instrumentation, and automobiles.
The COM20051+ contains many features that
are
beneficial
for
embedded
control
applications.
The microcontroller is a fully-
functional 16MHz 80C32 that is comparable to
the Intel 80C32. In contrast to other embedded
controller/networking solutions, the COM20051+
adds a fully-featured, robust, powerful, and
simple network interface, watchdog timer, and
data acquisition port, while retaining all of the
basic 8051 peripherals, such as the serial port
and counter/timers.


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