Off-the-Shelf Services
• Frame Relay / HDLC
• ATM AAL5, AAL2, AAL0
• ATM AAL1 SDT and UDT
• IMA
• Cell Relay
• Supported over TDM,
UTOPIA or xDSL
Applications
• Integrated Access Devices
• Routers
• Wireless Infrastructure
Equipment
• SONET Edge Equipment
• ATM / Frame Relay
Internetworking
• Multi-Service Edge
Concentrators
• DSLAMs
• Voice / Data Line Cards
Software Flexibility
• Any service, any DS0, any
time
• High-level API for minimal
development time
• Adaptable to changing
standards and new features
Reduced System Cost
• High port density
•
Industry-standard interfaces
• Support for multiple
services on common
hardware
EdgeMakerTM Firmware
CX27510 Edge Stream Processor
Integrated Multi-Service Network Edge Solution
EdgeMakerTM delivers a new class of data link processing for network edge
applications. In contrast to hardwired devices, EdgeMaker is a comprehensive
off-the-shelf firmware solution delivering unique system-level features such as:
•
Multiple full-featured services that can run concurrently and be dynamically
reconfigured with no processor downtime. This allows system OEMs to
address new challenges faced by their customers. Enterprises deploying CPE
equipment based on EdgeMaker are insured against changing WAN service
offerings as well as evolving pricing plans. Carrier equipment can support any
service, any link, down to a DS0.
•
DiffServ-enabled services, supporting multiple classes per logical channel.
Voice, video, and multiple data classes can be prioritized on a single connection
to ensure optimal and desired network behavior.
•
A high-level API with consistent look-and-feel across all services. This API
accelerates time-to-market and allows for development leverage across multiple
applications/services.
Written specifically for the CX27510 Edge Stream Processor (ESP),
EdgeMaker
firmware provides communication services up to OC-3 rates over TDM, UTOPIA,
and xDSL interfaces. A powerful suite of development tools to ease system design,
create value-added applications, and adapt to new or changing standards is also
available.
Edge Stream Processing Services
EdgeMaker running on the CX27510 delivers a broad set of industry-standard
communication services which integrates packets and Nx56/64 Kbps TDM circuits
over IP, xDSL, and ATM network connections. The following services are
included:
•
Service-AAL1: Service-AAL1 is an I.363.1 compliant AAL1 SAR firmware
module capable of providing circuit emulation for all TDM interfaces utilizing
either structured (SDT) or unstructured data transfer (UDT). Service-AAL1
SDT can map an entire T1/E1 or selected DS0s from a link to an ATM
channel. It supports CAS and partial cell fill modes. Service-AAL1 UDT
provides circuit emulation for DS1 and E1s. Integrated SRTS or adaptive clock
support requires no external hardware.
•
Service-AAL2: Service-AAL2 is an I.363.2 compliant AAL2 SAR supporting
CPS layer switching, Traffic Management 4.0, and raw cell insertion and
extraction. Service-AAL2 supports 672 voice channels with typical CODECs.
Hardware Performance
• Parallel service-optimized
hardware engines
• 133 MHz custom RISC core
• HDLC formatter/de-
formatter
• Full duplex data rates over
155 Mbps
Physical Interfaces
UTOPIA
• Level I/II
• Master or slave mode
• 8 bit TX/RX
• Cell or packet mode
• Independently clocked from
processor core
PCI
• Revision 2.2/2.1 compliant
• 32 bit bus
• Independently clocked to
66 MHz
• PCI Master and Target
TDM
• 4, 8 or 16 links
• Direct CAS interface for
circuit emulation
• Integrated SRTS and
adaptive clocking
External Memory
Program and Context Memory
• Flow through, pipelined
synchronous SRAM
• Up to 1 Mbyte
Scatter Memory
• Pipelined synchronous
SRAM
• Up to 512 Kbytes
Gather Memory
• Pipelined synchronous
SRAM
• Up to 512 Kbytes
• Service-AAL5: Service-AAL5 is an I.363 compliant AAL5 SAR for bi-
directional data traffic up to OC-3, with support for Traffic Management 4.0
shaping, four traffic priorities, and four class of service queues per VC.
•
Service-IMA: Service-IMA is an ATM Forum Version 1.1 compliant cell
processing service supporting all protocol cell formats, frame formats, and state
behaviors for up to sixteen T1/E1 IMA links per group. IMA groups can be
used to transport a mixture of ATM AAL5, AAL2, and AAL1 services.
Service-IMA creates an IMA port which can be connected to other ATM-based
services or cell ports, e.g. UTOPIA.
• Service-Frame: Service-Frame is a packet transmission facility that can be used
to implement packet based data link technologies including PPP and Frame
Relay. HDLC functions such as CRC-16, CRC-32, bit stuffing/de-stuffing,
FCS checking/generation and flag detection/generation are provided. HDLC
unchannelized links or for NxDS0 connections on
channelized links.
Hardware Features
The core of the CX27510 is the SWANTM processor, a network-optimized
processor, which combines the pipelined architecture of a RISC processor with the
CISC-like instruction set of a specialized communications processor. Standard
packet, cell, and circuit interfaces are tightly coupled with the high-performance
communications processing engine in order to support WAN edge applications.
The Level II compliant, packet-extended UTOPIA port operates as an 8-bit bi-
directional interface and supports master or slave mode. The UTOPIA port
supports 52, 56 and 60 byte cells and a POS PHY interface mode. The host
interface for the CX27510 is provided by a revision 2.2/2.1 compliant PCI
interface. Byte lane swap capabilities are provided for ease of design in Little
Endian systems. The TDM interfaces can support 24, 32, 64, 96 or 128 DS0
timeslots for T1/E1 interfaces or computer telephony busses. The TDM interfaces
provide inline CAS support, DS0 tri-state control, independent TX and RX clocks,
and multi-frame synchronization. Support for adaptive and SRTS clocking is
supported without need for external circuitry.
SRAM
up to 1 MB
32
PCI
Network
Traffic In/Out
Frame
Buffer
Memory
Context
Memory
TDM
Interfaces
Management Interface
and/or Network Traffic
UTOPIA
Scatter/
Gather
Memory
Up To
16 T1/E1
Framers
CX27510
Performance Guidelines
• HDLC: 16 T1/E1 (at least
512 DS0s with up to 32
DS0 per channel)
• AAL5: OC-3
• AAL1: 16 T1/E1
• AAL2: DS3 (voice)
• IMA: 16 T1/E1
• Edge switching: 16 T1/E1
any service, any DS0
Application Examples
Integrated Access Devices
An integrated access device (IAD) incorporates several stand-alone
communications functions into one manageable, cost-effective solution. The
EdgeMaker/CX27510 combination is an ideal platform for such an application. By
using a CX27510 ESP in the depicted WAN access card configuration, high levels
of networking integration can be achieved on a single service card and a common
software platform.
In this example, the EdgeMaker/CX27510 combination is used to simultaneously
manage both LAN data and voice (compressed and uncompressed) traffic between
the enterprise and WAN. The breadth of interfaces inherent to the CX27510
architecture permits the simultaneous servicing of data and voice along a multitude
of WAN edge infrastructures including NxT1/E1, Frame Relay, xDSL, ATM, OC-
3, and DS3. EdgeMaker firmware delivers industry-standard, best of breed, multi-
serving across all interfaces.
Multi-Service Edge Concentrator
Another application where the processing power and versatility of the
EdgeMaker/CX27510 platform can be exploited is multi-service edge switching
functions. The TDM interfaces (up to 16 links) connect gluelessly to T1/E1 framer
chips and offer flexible support for a variety of circuit–based applications. At the
same time, the Level I/II compliant bi-directional UTOPIA interface built into the
CX27510 provides a means of appending router tags and transmitting over to a
switching fabric.
N x T1/E1:
Frame Relay
xDSL
ATM
RISC
Routing engine
OC-3
DS3
WAN Access Card
WAN Access Card
10/100
DSP compressed
nxT1/E1
CX27510
PCI
UTOPIA
Framer and/or
xDSL Modem
uncompressed
PHY
T1/E1
Voice
LAN Data
Enterprise WAN Area
n x
T1/E1
Device Information
• Power Supply: 1.8 and 3.3V
(optional 5V tolerant
operation)
• Power Dissipation: 2 watts
at 133 MHz
• Package: 553 PBGA
• Body size: 37.5mm x
37.5mm x 2.33mm
• Lead pitch: 1.27mm
• Ball Diameter: 0.75mm
• ?ja (oC/W): 13.3 still air;
11.5 at 1m/sec air flow
• Operation Temperature:
-40oC to 85oC
• Maximum device junction
temperature: 110oC
Development Tools
• Hardware and software
co-simulator
• Simulation models and test
benches
• Debugger
• Assembler
Ordering Information
• Versions of EdgeMakerTM
firmware offered:
1) AAL1, AAL2, AAL5, IMA,
and FRAME
2) AAL1, AAL2, and AAL5
3) AAL5 and FRAME
4) IMA only
• CX27511: 4 TDM links
• CX27512: 8 TDM links
• CX27513: 16 TDM links
• ESP SIMMakerTM
• ESP Design Toolkit
.
Using the CX27510 within an edge switching card, as illustrated, the EdgeMaker
firmware package provides servicing for an assortment of internetworking
applications at the access point between a customer premise and the core of an
ATM network. EdgeMaker’s any service down to a DS0 capabilities provide
unprecedented provisioning speed and flexibility to service providers. Also, this
flexibility allows for equipment vendors and service providers to reduce their
inventory requirements.
Development Tools
The ESP Design Toolkit provides a full-featured set of hardware and software co-
development tools for the ESP product family. A significant reduction in design
cycle time is achieved by enabling hardware integration, software integration, and
debugging to start early in the product development cycle. The ESP Design Toolkit
consists of a hardware and software co-simulator, an assembler, and a debugger.
ESP SIMMakerTM tool kit provides simulation models (SWIFT and Verilog), test
benches, bus functional models, IBIS models, and a reference design. Reference
code is provided to facilitate host application integration. A comprehensive set of
diagnostics is provided to assist with testing. ESP
SIMMaker is included as a part
of the ESP Design Toolkit or can be ordered separately.
Conexant Systems, Inc.
8 Technology Drive
Westborough, MA 01581
508-621-0622 (Phone) 508-621-0605 (Fax)
Product Information: www.maker.com / www.conexant.com
or send e-mail to info@maker.com
EdgeMaker, SWAN, and SIMMaker names are trademarks of Conexant Systems, Inc.
Framer/PHY
Switching Fabric
Edge Switching Card
Edge Switching Card
PCI
UTOPIA
16 x
T1/E1
N x T1/E1:N x T1/E1:
Frame RelayFrame Relay
Leased LineLeased Line
ATM / IMAATM / IMA
Mgmt
µP
CX27510