Hardware interface fully compliant with PCI
Provides an easy, high-performance hardware
interface to other off-the-shelf PCI products, such
as Ethernet cards or multimedia accelerators.
Hardware reference design
Full-featured RS8235/8251EVM reference design
provided as a complete ATM UNI which implements
the full functionality of the RS8235 Endstation SAR.
Software reference design
Greatly speeds development of new applications.
Allows the user to develop and port proprietary
software applications atop the software driver
provided with the RS8235/8251EVM.
Traffic generation and checking capability
Assists in product debug state as an ATM load
generator and checker.
Optical OC-3 interface
Enables high-performance testing.
Software reference design
Modular software design
Dynamic rate control per virtual channel
SAR initialization and VCC control
Well-defined, robust RS8235HPI interface
Well-documented C source code
RS8235HPI Macro Layer software
Shortens development time of
customer system-specific ATM applications.
Allows users to utilize only those functions they
want and to incorporate those functions into their
Users can establish ABR, CBR, UBR or VBR
connections at VCC setup on each of over
Provides detailed examples for control and
management of the RS8235. Significantly
shortens design time.
Enables users to easily port their application to
Gives users a clear description of how the software
and hardware function.
Offers a layer of abstraction for ease-of-use of
the RS8235HPI primitives. Reference device driver
What is ATM?
Asynchronous Transfer Mode (ATM) has emerged as the
primary networking technology for next-generation, multi-
service communication networks. ATM-enabled services
benefit the Internet as well as emerging applications in
science, telemedicine and distance learning. Just as the
Internet revolutionized worldwide communications,
ATM brings new meaning to high-speed networking.
ATM, which uses a fixed-size packet, or cell, is a transport
protocol capable of providing a homogeneous network
for all traffic types, whether the application is to carry
conventional telephony, video entertainment, or data
traffic over LANs, MANs or WANs.
The ITU-T and ANSI selected ATM for Broadband-ISDN.
SONET/SDH, as specified by the ITU, is intended as the
primary transport mechanism for ATM cells in WAN
applications. ATM also plays a key role in next-generation
consumer applications for high-speed Internet access and
wireless access. The ADSL Forum and the Universal ADSL
Working Group chose ATM as the network layer protocol
for G.lite and G.DMT ADSL.
ATM physical-layer (ATM-PHY) IC devices adapt ATM cells
to and from transmission rates ranging from 1.544 Mbps
to 2.4 Gbps via a standard system interface called UTOPIA.
ATM-PHY devices perform ATM cell functions (transmission
convergence) such as cell scrambling/descrambling, cell
delineation (HEC), cell header processing, and cell-rate
decoupling as well as rate-specific functions for frame genera-
tion/recovery frame adaptation and clock/data recovery.