6 PMC423 Port Serial, Front/Rear I/O Hardware Reference Manual
Overview
Introduction
The
PMC423*
is
a
versatile
sixteen
port
serial
controller
in
PCI
Mezzanine
Card
(PMC)
format.
Signaling
characteristics
of
each
port
can
be
controlled
for
RS232,
RS422
or
RS485
operations.
The
signaling
protocol
configuration
is
per
four
channels,
providing
four
independent
configuration
settings.
The
serial
interfaces
are
implemented
using
an
Octal
UART.
This
combines
compatibility
with
the
most
commonly
used
components
(16C550
compatible
register
set),
with
full
support
of
PCI
attributes
(e.g.,
32
‐
bit
data
transfers)
for
increased
performance.
This
allows
rapid
integration
to
legacy
systems,
while
providing
an
evolutionary
path
for
enhanced
software
to
improve
performance.
Product Features
The
PMC423
is
a
powerful
and
flexible
method
to
integrate
serial
data
channels
to
a
PCI
system.
Features
include:
•
Sixteen
independent
serial
channels
•
Programmable
baud
rate
from
100
‐
bits/second
to
921.6Kbits/s
(*with
default
Crystal
at
14.7456
MHz)
•
UART
register
sets
compatible
with
16C550
•
64
Byte
First
‐
in/First
‐
out
(FIFO)
per
channel
•
Full
PCI
compatibility
(32
‐
bit/33
and
66
MHz
PCI
capable)
•
Signaling
characteristics
of
each
channel
pair
(RS232/RS422/RS485)
configured
with
software
•
Two
Input/Output
(I/O)
routings:
– Sixteen
ports
front
connection
– Sixteen
ports
rear
(J4)
connection
NOTE
Customer may specify the speed of the Crystal.
Software Support
GE
provides
full
software
support
for
all
of
the
popular
software
environments
(e.g.,
VxWorks
®
,
LynxOS
®
,
Windows
NT
®
,
Solaris
TM
).
Each
driver
has
been
developed
specifically
for
the
real
‐
time
data
acquisition
market.
Содержание PMC423 Series
Страница 2: ...Document History Hardware Reference Manual Document Number RX URMH 006 Rev C July 13 2011 ...
Страница 13: ...Handling and Installation 13 Figure 1 3 PIM422 TOP BOTTOM ...
Страница 16: ...16 PMC423 Port Serial Front Rear I O Hardware Reference Manual Figure 1 4 Default Switch Settings ...
