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CN8223 Datasheet Preview

CN8223 Datasheet

ATM Transmitter/Receiver with UTOPIA Interface

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CN8223 pdf
CN8223
ATM Transmitter/Receiver with UTOPIA Interface
The CN8223 ATM Transmitter/Receiver with UTOPIA Level 1 interface provides a
single-access ATM service termination for User-to-Network (UNI) and
Network-to-Network Interfacing (NNI) in conformance with ATM Forum UNI and NNI
Specification 94/0317; Bellcore Specifications TR-TSV-000772, TR-TSV-000773,
TR-NWT-000253, and T1S1/92-185; ITU Recommendations I.432, G.707, G.751,
G.832, and Q.921; and ETSI prETS 300 213 and 300 214. Both Customer Premise
Equipment (CPE) and switching system interface functions are provided. The CN8223
provides DS1, E1, DS3, E3, E4, STS-1, and STS-3c (and STM-1) ATM cell alignment
functions. The system interface is via a parallel FIFO port or UTOPIA interface. In
addition, the CN8223 terminates the operations and maintenance flows F1, F2, and F3.
The CN8223 provides four FIFO port interfaces and one UTOPIA interface. Each
receiver port can be programmed with a particular Virtual Channel Identifier/Virtual
Path Identifier (VCI/VPI) address for message routing. VCI/VPI pages can also be
selected via masking registers.
The microprocessor can set control registers for insertion of selected header fields
by the transmitter on an individual port basis. The microprocessor can also control
insertion of all overhead and can insert errors in selected fields for test equipment
applications.
Functional Block Diagram
8
Data
Bus 8
Port
Control
UTOPIA
or FIFO
Interface
Microprocessor Microprocessor
Address
Data
Line Overhead
Cell
FIFO
8
7 8 16
4-Port
FIFO
Interface
Microprocessor
Interface
52 Control Registers
28 Status Registors
HDLC
Data
Link
8
Cell
Generation
TX
Rate
Control
8
Cell
Alignment
Header
Filter
Cell
Validation
HEC or
8 PLCP
8
Framers 1
DS3
E3 (G.751)
E3 (G.832)
STS-1
E4 (G.832)
ATM
UNI
STS-3c 1
STM-1
TAXI
8
ATM Layer
Physical Framing
Distinguishing Features
• Integrates 7 line framers with ATM
layer processing according to ATM
Forum UNI and NNI Specifications
• UTOPIA Level 1 interface
• Internal framers for DS3, E3 (G.751,
G.832), E4 (G.832), STS-1, STS-3c,
STM-1
• PLCP and G.804 HEC cell alignment
for all data rates from 1.544 Mbps to
155 Mbps
• Direct interface to TAXITM or external
T1/E1 framers
• ATM and SMDS cell modes
• 4 FIFO ports with header screening,
formatting, and transmit priority
controls
• Idle cells generated and screened
• Statistics counts latched on
one-second intervals
• Error detection and insertion
• Option insertion or generation of all
line and cell overhead
• Serial or parallel line interface
• Available evaluation module
reference design and software
• Supports Automatic Protection
Switching (APS)
Applications
• WAN equipment
• ATM switches
• Test equipment
• ATM routers and hub
Data Sheet
100046C
March 8, 2000



Conexant Systems
Conexant Systems

CN8223 Datasheet Preview

CN8223 Datasheet

ATM Transmitter/Receiver with UTOPIA Interface

No Preview Available !

CN8223 pdf
Ordering Information
Part Number
28222-13
28222-14
28233-11
Generic Part
Number
Bt8222EPFE
Bt8222EPFF
CN8223EPF
Operating
Temperature
40 °C to 85 °C
40 °C to 85 °C
40 °C to 85 °C
Package
Description
160-pin PQFP
160-pin PQFP
160-pin PQFP
Reduced Features
The CN8223 is based on the Bt8222
device. The only change from the
Bt8222 to the CN8223 is the TTL
I/O pad ring. The I/O structure
allows the CN8223 to function in a
3.3/5 V environment. No new
features, errata fixes, etc., have
been added to the CN8223 other
than TTL threshold inputs.
© 1999, 2000, Conexant Systems, Inc.
All Rights Reserved.
Information in this document is provided in connection with Conexant Systems, Inc. (“Conexant”) products. These materials are
provided by Conexant as a service to its customers and may be used for informational purposes only. Conexant assumes no
responsibility for errors or omissions in these materials. Conexant may make changes to specifications and product descriptions at
any time, without notice. Conexant makes no commitment to update the information and shall have no responsibility whatsoever for
conflicts or incompatibilities arising from future changes to its specifications and product descriptions.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as
provided in Conexant’s Terms and Conditions of Sale for such products, Conexant assumes no liability whatsoever.
THESE MATERIALS ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, RELATING
TO SALE AND/OR USE OF CONEXANT PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A
PARTICULAR PURPOSE, CONSEQUENTIAL OR INCIDENTIAL DAMAGES, MERCHANTABILITY, OR INFRINGEMENT OF ANY
PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. CONEXANT FURTHER DOES NOT WARRANT THE
ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE
MATERIALS. CONEXANT SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS, WHICH MAY RESULT FROM THE USE
OF THESE MATERIALS.
Conexant products are not intended for use in medical, life saving or life sustaining applications. Conexant customers using or selling
Conexant products for use in such applications do so at their own risk and agree to fully indemnify Conexant for any damages
resulting from such improper use or sale.
The following are trademarks of Conexant Systems, Inc.: Conexant™, the Conexant C™ symbol, and “What’s Next in
Communications Technologies”™. Product names or services listed in this publication are for identification purposes only, and may be
trademarks of third parties. Third-party brands and names are the property of their respective owners.
For additional disclaimer information, please consult Conexant’s disclaimer information posted at www.conexant.com which is
incorporated by reference.
Reader Response: Conexant strives to produce quality documentation and welcomes your feedback. Please send comments and
suggestions to conexant.tech.pubs@conexant.com. For technical questions, contact your local Conexant sales office or field
applications engineer.
100046C
Conexant


Part Number CN8223
Description ATM Transmitter/Receiver with UTOPIA Interface
Maker Conexant Systems
Total Page 30 Pages
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