MC92501 データシートの表示（PDF） - Motorola => Freescale
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MC92501 Datasheet PDF : 56 Pages
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
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by MC92501/D
MC92501
Advance Information
ATM Cell Processor
The MC92501 is an Asynchronous Transfer Mode (ATM) Cell Processor layer device
composed of dedicated high-performance ingress and egress cell processors combined
with UTOPIA Level 2-compliant physical (PHY) and UTOPIA Level 1-compliant switch
interface (see Figure 1). It integrates address translation, UPC/NPC, OAM, and
statistical functions into a single semiconductor device. This second generation ATM cell
processor in Motorola’s MC92500 series can be used both in the line cards used by the
switching systems in the ATM network core and in the access multiplexer. The primary
function of the MC92501 in either application is to provide ATM-layer cell processing
and routing functions. The advanced ATM functionality permits simultaneous
tranmission of voice, video, and data within broadband services such as high-speed
Internet operations, LAN interconnections for commuters, and video-on-demand using
a variety of applications such as Digital Subscriber Line Access Multiplexers (DSLAMs),
Wide-Area Networks (WANs), Enterprise Switches, and Multi-service Platforms,
UTOPIA I/F
Ingress PHY
Interface
Multiple PHY
support
Internal Scan
Ingress Cell Processing
VP and VC Address compression
NPC/UPC
Cell Counting
OAM Operations
Add Switch parameters
Microprocessor Cell Insertion
Microprocessor Cell Copying
Ingress SWT
Interface
Independent
clock
UTOPIA I/F
Microprocessor
Interface
Cell Insertion
Cell Extraction
Configuration Regs.
Maintenance Access
External Memory
Interface
UTOPIA I/F
Egress PHY
Interface
Multiple PHY
support
Egress Cell Processing
Multicast Translation
UPC/NPC
Cell Counting
OAM Operations
Address translation
Microprocessor Cell Insertion
Microprocessor Cell Copying
FMC Generation
Egress SWT
Interface
Independent
clock
Extract overhead
UTOPIA I/F
Figure 1. MC92501 Block Diagram
This document contains information on a new product. Specifications and information herein are subject to change without notice.
Rev. 2, Feb. 1999
Preliminary Data
© 1998, 1999 MOTOROLA, INC.
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