MT90840 Mitel Networks Corporation, MT90840 Datasheet

MT90840

Manufacturer Part Number

MT90840

Description

Distributed Hyperchannel Switch

Manufacturer

Mitel Networks Corporation

Datasheet

1.MT90840.pdf (4 pages)

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•

Features

Time-slot interchange function between 8 pairs

of ST-BUS/GCI/MVIP streams (512 channels)

and a Parallel Data Port (PDP)

Supports star, point to point connections and

unidirectional or bidirectional ring topologies for

distributed systems

Input to Output Bypass function with minimum

delay for shared ring applications

Provides an internal latency adjustment buffer

for ring applications

Parallel port data rates up to 19.44Mbyte/s

Programmable data rates on the serial port side

(2.048 Mb/s, 4.096 Mb/s or 8.192 Mb/s)

Unidirectional Parallel switching mode for up to

2430 channels non-blocking

Per-channel direction control on the serial port

side

Per-channel message mode and high-

impedance control on both parallel and serial

port sides

8-bit multiplexed port compatible with Intel and

Motorola microcontrollers

Guarantees frame integrity when switching

wideband channels such as ISDN H0 channel

Provides external control lines allowing the fast

parallel interface to be shared with other

devices

Serial

Data

Port

DSo[0:7]

C4REF1

C4REF2

DSi[0:7]

C4OUT

TMS

TDO

TCK

TDI

S-P

P-S

JTAG

SERIAL PORT TIMING

Figure 1 - Functional Block Diagram

RESET

CONTROL

RECEIVE PATH

DATA & CONN

MEMORIES

AD[0:7] ALE

Microprocessor Interface

TRANSMIT PATH

DATA & CONN

MEMORIES

WR/

R/W

RD/

LATENCY

RECEIVE

BUFFER

•

Applications

•

PARALLEL PORT TIMING

DTACK

Special diagnostic alarm functions for statistical

analysis

JTAG boundary scan

Bridging ST-BUS/MVIP buses to high speed

Time Division Multiplex backplanes at SONET

rates (STS-1/3)

High speed isochronous backbones for

distributed PBX and Local Area Network

systems

Switch platforms of up to 2430 channels with

guaranteed frame integrity for wideband

channels

Serial bus control and monitoring

Data multiplexer

High speed communications interface

Isochronous switching/multiplexing to support

IEEE 802.9 standards

Distributed Hyperchannel Switch

CONTROL

INT

MT90840AK

MT90840AP

INTERFACE

PARALLEL

EXTERNAL

CONTROL

PORT

Ordering Information

-40°C to 85°C

ISSUE 1

Advance Information

100 Pin PQFP

84 Pin PLCC

PDo0-7

PDi0-7

PPFRo

PPFRi

PCKR

PCKT

CT3

CT0

CT1

CT2

MT90840

Parallel

Data

Port

June 1995

2-189

Related parts for MT90840

MT90840 Summary of contents

Page 1

... BUFFER TRANSMIT PATH DATA & CONN MEMORIES Microprocessor Interface WR/ RD/ INT RESET AD[0:7] ALE CS DTACK R/W DS Figure 1 - Functional Block Diagram MT90840 Advance Information ISSUE 1 June 1995 Ordering Information 100 Pin PQFP 84 Pin PLCC -40°C to 85°C PPFRo PCKT PPFRi PCKR PDi0-7 Parallel PARALLEL ...

Page 2

... This type of synchronization scheme may be used in applications such as MVIP multi-chassis level 3 interface (MC-3 system) utilizing point to point or point to multipoint switching connections. When the MT90840 device operates in a ring type of application like the system depicted in Figure 2, a special mode called Parallel Data Bypass is provided of ...

Page 3

... & MT90840 ...

Page 4

... MT90840 Notes: 2-192 Advance Information ...

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