MT90222 ZARLINK [Zarlink Semiconductor Inc], MT90222 Datasheet - Page 2
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MT90222
Manufacturer Part Number
MT90222
Description
4/8/16 Port IMA/TC PHY Device
Manufacturer
ZARLINK [Zarlink Semiconductor Inc]
Datasheet
1.MT90222.pdf
(155 pages)
- Current page: 2 of 155
- Download datasheet (920Kb)
General
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Applications
Provides cost effective solutions to implement IMA and/or TC functions over T1, E1, J1 or DSL transport facilities in
broadband access networks. Typical applications are for trunking or subscriber access in:
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Preamble
The MT90222, MT90223 and MT90224 form a family of similar devices, differing mainly in the maximum number of
serial links, and are collectively referred to as MT90222/3/4. It should be noted throughout this document whenever
reference is made to the number of serial links that the MT90224 offers a maximum of 16 serial links (links 15:0),
while the MT90223 offers a maximum of 8 serial links (links 14,12,10,8,6,4,2 and 0), and the MT90222 offers a
maximum of 4 serial links (links 12, 8, 4 and 0). Pin and register compatibility has been maintained to offer
interchangeability.
Note: When creating IMA groups for MT90222 the groups 0, 1, 2 and 3 should be used.
Description
The MT90222/3/4 device is targeted to systems implementing the ATM FORUM Inverse Multiplexing for ATM (IMA
version 1.1 and 1.0) or UNI specifications for T1/E1 rates. In the MT90222/3/4 architecture, up to 16 physical and
independent serial links can be terminated through the utilization of off-the-shelf, traditional T1/E1/J1 framers/LIUs
and DSL chip sets. The MT90222/3/4 device can also provide up to 10 Mb/s per link data rates for unframed serial
TDM transmissions for xDSL applications.
The MT90222/3/4 device provides ATM system designers with a flexible architecture when implementing ATM
access over existing trunk interfaces, allowing a migration towards ATM service technology. In addition to the
design of ATM UNI specifications for T1/E1 rates, the MT90222/3/4 device is compliant with the ATM FORUM IMA
specifications for controlling IMA groups of up to 16 trunks in a single chip. The MT90222/3/4 can be configured to
operate in different modes to facilitate the implementation of the IMA function at both CPE and Central Office sites.
For systems targeting ATM over T1/E1 with IMA and TC operating simultaneously, the MT90222/3/4 device
provides the ideal architecture and capabilities.
Supports unframed serial streams up to 10 Mb/s per T1/E1 or DSL link
Single chip ATM IMA & TC processor
Versatile TDM interface for most popular T1 or E1 framers and DSL chipsets
Up to 6 MT90222/3/4 devices can be spanned using a TDM ring supporting 32 links
Provides 8 & 16-bit UTOPIA Level 1 & 2 compatible MPHY Interface (MT90222/3/4 slaved to ATM device)
16-bit microprocessor interface for Intel or Motorola
JTAG test support
2.5 V core, 3.3 V I/O with 5 V tolerant inputs
384 pin PGBA with 1.0 mm pitch balls
MT90222, MT90223 & MT90224 share the same product package and pin-out configuration
Integrated multi-service access platforms
Access multiplexers
Next-generation DLC
Wireless local loop
3G wireless base-stations
Zarlink Semiconductor Inc.
MT90222/3/4
2
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