COM20051
Integrated Microcontroller and
ARCNET (ANSI 878.1) Interface
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
•
Receive All Mode Allows Any Packet to Be
Received
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 compatible with 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 with
2 timers.
In contrast
to other embedded
controller/networking solutions, the COM20051
adds a fully-featured, robust, powerful, and
simple network interface while retaining all of the
basic 8051 peripherals, such as the serial port
and counter/timers.
In
addition,
the
COM20051
supports
an
Emulation Mode that permits the use of a
standard 80C32 emulator in conjunction with the
COM20051 to develop software drivers for the
network core.
ARCNET core is mapped to
a
256-byte page of the External Data Memory
Space
of
the
80C32.
This
Chinese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
