User Manual

Trilogy 3 MPCI
M3AWEB/56GA
Product Specification
Introduction
The primary purpose of this document is to communicate the Intel PRO/Wireless LAN &
AC’97 Modem MPCI Adapter features and specifications to a technical audience.
Trilogy 3 is an Intel codename that references a third generation of wireless LAN
products that are OEMed-in from Symbol Corporation, or based on Intersil Prism 2.5
reference designs. The WLAN and Modem sections of the adapter are completely
separate – including power and interface pins, allowing a WLAN-only version via de-
population of modem components.
Trilogy 3 Product Overview
Trilogy 3 products transfer data at ethernet speeds (11Mbps instantaneous data rate)
over the air between two or more users or between a user and the wired network. The
WLAN is not a single product; it is a digital radio system with product components that
can be configured to meet a multitude of customer requirements. The Trilogy 3 Access
Point (AP) links to a wired LAN via a wired ethernet connection. Wireless NICs
communicate to the wired LAN through the AP. Multiple Access Points are deployed in
a cellular layout plan similar in concept to the cellular telephone base station layout.
Document Purpose
This document defines the functional characteristics of the Trilogy 3 MPCI Adapter. All
of the basic functionality is provided by Intersil as part of their 802.11 DS implementation
for the Intersil PRISM 2.5 radio using the Intersil ISL3874A microcontroller. In particular,
the host interface access mechanisms, packet send, receive, queuing, timer services,
and buffer management are already implemented and do not require further
development. Therefore, this document primarily addresses the radio configuration and
firmware enhancements required for the Trilogy 3 product.
Key Features
Direct Sequence 802.11b physical layer
802.11b High data rate capability – 11 MBPS, 5.5 MBPS, 2 and 1 MBPS
3.3 volt Mini PCI Type 3A card (3.3V Aux – Modem)
16 bit host interface using PCI IO mode for 802.11b section
In-line WEP algorithm
Enhanced power save algorithm for 802.11b section
Robust roaming and dynamic rate switching for 802.11b section
Wi-Fi certified 802.11b section
Microsoft WHQL certified
Modem Auto-configuration
Modem v.90 Compliant (software-upgradeable to v.92)
Hayes Compatible AT modem command set
Modem Wake On Ring
Intel Confidential – Controlled Access
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