Table of Contents
Advertisement
Overview
Product Features
Software Support
6 PMC423 Port Serial, Front/Rear I/O Hardware Reference Manual
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.
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.
GE provides full software support for all of the popular software environments
®
(e.g., VxWorks
, LynxOS
developed specifically for the real‐time data acquisition market.
®
®
, Windows NT
, Solaris
TM
). Each
driver has been
Advertisement
Table of Contents
