Curtiss-Wright FHK4-FM4MWB04-00, Справочник по аппаратуре

Страница: 13 / 123

Copyright 2012 2-1 FibreXtreme HW Reference for FPDP Cards
2. PRODUCT OVERVIEW
2.1 Overview
The FibreXtreme SL240 cards provide fast, low latency point-to-point or broadcast
connections between sensors and processing devices. The FPDP versions include a PCI-
based solution with standard FPDP connectors and a rehostable Common Mezzanine
Card (CMC).
The CMC card provides this interface through a simple unidirectional parallel port. This
port can be connected to existing FPDP equipment or can be integrated into new products
(CMC). All of these variations interoperate completely on the link interface, providing
seamless integration between diverse platforms.
2.2 SL240 Features
SL240 provides reliable point-to-point or broadcast interconnects between systems, with
minimal overhead and very low latency. The protocol involved for this transport is based
on Fibre Channel, though it is not Fibre-Channel compliant. The major SL240 features
are listed below:
•
Uses proven 8B/10B encoding for data transmission.
•
End-to-end throughput of 247 MBps with or without frame checksums (SL240).
•
End-to-end throughput of 105 MBps with or without frame checksums (SL100).
•
Minimizes implementation cost and enhances throughput by using a simple
protocol.
•
Provides built-in data synchronization with very little reduction in throughput.
•
Integrated interrupt controller to report link failure, transaction completion, or
buffer space request.
•
Status LED that reports link stability.
•
Loop operation with out-of-band arbitration or point-to-point operation.
•
Provides a register set designed for easy programming and status retrieval.
•
Four media options available—long-reach wavelength laser, long wavelength
laser, short wavelength laser, and HSSDC2 copper.
•
Watchdog timer for failover operation.
•
128 MB Receive FIFO.
•
2 KB Transmit FIFO.