Specifications

|Modems
2
ADSL Modems
Asymmetric Digital Subscriber Line (ADSL) is a modem technology
that transforms ordinary phone lines into high-speed digital lines
for ultra-fast Internet access. ADSL client products encompass the
CPE chipset and PC driver solutions that are optimized to address
this growing demand. Our industry leadership has enabled us to
bring a variety of solutions to the marketplace. Conexant is a
member of the DSL Forum which supports interoperability.
ADSL Customer Premise Equipment
Portfolio of ADSL CPE
In addition to the products described in this section, Conexant
offers several variations of its ADSL technology:
• PCI ADSL chipsets
• PCI ADSL/V.92 chipsets
• PCI ADSL/V.92/HomePNA/LAN chipsets
• USB ADSL chipsets
• USB ADSL/V.92 chipsets
• Ethernet/USB ADSL bridge chipsets
• Ethernet/USB ADSL router chipsets
• HomePNA ADSL router chipsets
• Multiport ADSL router chipsets
The unique advantage of this broad portfolio of CPE solutions is
the leveraging of a common ADSL core engine (DMT processor,
AFE, and Line Driver) across all solutions. This ensures
widespread interoperability and strong performance among all
of the CPE offerings.
Additionally, driver applications such as Installation Wizard,
Control Panel and taskbar application are also leveraged among all
USB and Protocol Control Information (PCI) solutions. Likewise,
the Ethernet, HomePNA and multiport bridge/router solutions
share a common web server for configuration. This synergy allows
an OEM to have a common look and feel for all
of its CPE solutions across the various form factors. Furthermore,
each of the driver applications and web server are completely
OEM customizable, including multilanguage support, enabling
easy branding and promotion of a portfolio of CPE solutions.
AccessRunner
®
PCI ADSL Modem Device Set
Full-Rate and G.lite ADSL Modem Delivers End-to-End
Internet Connectivity
Conexant’s AccessRunner low-power PCI-based ADSL chipset and
PC driver solution is optimized to address the growing demand
for high-speed Internet access. AccessRunner is a controllerless
solution that is fully compliant with both the full-rate ADSL
(T1.413 Issue 2 and G.dmt) and the ‘splitterless’ G.lite (G.992.2)
standards. Compliance ensures that products based on the
AccessRunner solution can address the existing installed base and
continued deployment of ADSL lines.
Conexant’s AccessRunner modem is an “always on” high-speed
broadband connection to the Internet. Using existing twisted-pair
telephone lines, ADSL technology provides data rates over 100
times the speed of a traditional analog modem, without an
interruption in telephone service. With up to 8 Mbps downstream
and 1 Mbps upstream data transfer rates, ADSL is the ideal
solution for high-bandwidth applications such as access to a
corporate network, Internet access, and video delivery. Conexant’s
ADSL chipsets support the full range of ADSL standards using
industry standard Discrete Multitone (DMT) line-code technology.
Conexant’s versatile ADSL client-side chipset is a cost-effective
solution optimized for today’s PC market.
Optimized Controllerless ADSL Solution
The PCI ADSL device set consists of a PCI controller, a DMT
datapump, an AFE, and a line driver. Using only a fraction of the
PC’s host processor, this controllerless solution eliminates the need
for costly microcontrollers and external memory required in other
ADSL modems.
In addition, Conexant’s ‘softSAR’ technology provides the ATM
Segmentation and Reassembly (SAR) function as part of the PC
driver. However, in order not to unnecessarily burden the host
PC and the PCI bus, the idle cell insertion and deletion that takes
place when no information is being transferred across the ADSL
link is performed as part of the chipset.
Without the need for an external microcontroller or memory,
Conexant’s AccessRunner is the most cost-effective, optimized
solution for the PC environment.
ADSL Drivers
Conexant’s PC drivers are designed for use with Windows
®
98,
Windows
®
2000, Windows
®
ME, Windows
®
XP, and fully leverage
Microsoft’s built-in features for the support of ADSL adapter cards.
In addition to softSAR functionality, the drivers fully support the
recognized standards for Point-to-Point (PPP) over ATM (RFC2364),
PPP over Ethernet (RFC2516), Ethernet bridging/routing over ATM
(RFC1483), and Classical IP over ATM (RFC1577). A control panel
applet is provided for real-time diagnostic information. In addition,
hooks are included to allow automatic configuration of the ADSL
modem and the drivers.
PCI Controller
The P46 PCI controller is a bridge between the 11627 DMT
datapump and the PCI bus. It provides the control, interface, and
data manipulation for the datapump, analog front end, and line
driver. It is compliant with the PCI 2.2 specification and supports
power management.
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