COM20051 Datasheet, PDF (3/82 Pages) List of Unclassifed Manufacturers – Integrated Microcontroller and ARCNET (ANSI 878.1) Interface

provides for an easy interface between the CPU
and the ARCNET core. The networking core
is based around an ARCNET Token Bus
protocol engine that provides highly-reliable and
fault tolerant message delivery at data rates
ranging from 5Mbps down to 156 Kbps with
message sizes varying from 1 to 508 bytes.
The ARCNET protocol offers a simple,
standardized, and easily-understood networking
solution for any application. The network
interface supports several media interfaces,
including RS-485, coaxial, and twisted pair in
either bus or star topologies. The network
interface incorporates powerful diagnostic
features for network management and fault
isolation. These include duplicate node ID
detection, reconfiguration detection, receive all
(monitor) mode, receiver activity, and token
detection.
PIN CONFIGURATION
P1.5
P1.6
P1.7
RST
P3.0/RXD
nPULSE1
P3.1/TXD
P3.2/INT0
P3.3/INT1
P3.4/T0
P3.5/T1
6 5 4 3 2 1 44 43 42 41 40
7
39
8
38
9
37
10
36
11
12
COM20051
35
34
13
33
14
32
15
31
16
30
17
29
18 19 20 21 22 23 24 25 26 27 28
P0.4/AD4
P0.5/AD5
P0.6/AD6
P0.7/AD7
nEA/EMUL
TXEN
ALE
nPSEN
P2.7/A15
P2.6/A14
P2.5/A13
3