Mitel MT90840 manual Features, Applications

Page 1

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Features

•Time slot interchange function between eight pairs of ST-BUS/GCI/MVIP™streams (512 channels) and parallel data port

•Programmable data rates on the parallel port (19.44, 16.384, or 6.480 Mbyte/s)

•Programmable data rates on the serial port (2.048 Mbps, 4.096 Mbps or 8.192 Mbps)

•Supports star and point-to-point connections, and unidirectional or bidirectional ring topologies for distributed systems

•Input-to-output bypass function on the parallel data port for use in add/drop applications

•Provides elastic buffer at parallel input port in the receive direction

•Provides byte switching for up to 2430 channels

•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 microprocessor port compatible with Intel and Motorola microcontrollers

•Guarantees frame integrity when switching nX64 wideband channels such as ISDN H0 channel

•Provides external control lines allowing fast parallel interface to be shared with other devices

MT90840

Distributed Hyperchannel Switch

Preliminary Information

 

ISSUE 2

March 1997

Ordering Information

 

MT90840AL

100 Pin PQFP

 

MT90840AP

84 Pin PLCC

 

-40°C to 85°C

 

 

 

 

•Diagnostic alarm functions and clock phase-status word for clock monitoring

•IEEE 1149 (JTAG) boundary scan port

Applications

•Bridging ST-BUS/MVIP buses to high speed Time Division Multiplexed backplanes at SONET rates (STS-1, STS-3)

•High speed isochronous backbones for distributed PBX and LAN systems

•Switch platforms of up to 2430 channels with guaranteed frame integrity for wideband channels

•Serial bus control and monitoring

•Data multiplexing

•High speed communications interface

 

 

 

8

 

Multiple Pages of 512 Position

 

8

Serial

Bidirectional

STi0

PDo0

 

 

 

TX Path Data Memory

 

 

 

to

I/O

 

 

 

Output

 

 

 

 

 

 

 

 

 

 

 

 

Parallel

Driver

 

 

 

Mux &

 

 

 

 

 

 

 

 

 

 

 

 

STi7

PDo7

 

Drivers

 

 

 

 

 

16

 

 

 

&

 

 

 

CTo0-3

 

4

 

 

 

 

2430 Position

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TX Path

 

 

 

Parallel

 

 

 

 

 

 

 

 

8

Connection Memory

 

 

 

 

 

 

 

 

 

 

 

 

to

 

 

STo0

PDi0

 

 

 

 

 

 

 

 

 

 

 

 

Serial

Bidirectional

 

 

 

8

 

Multiple Pages of 2430-Byte

8

 

 

I/O

 

 

PDi7

 

 

 

 

 

 

Driver

STo7

 

 

 

 

RX Path Data Memory

 

 

 

Conver-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

ters

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PCKR

 

 

 

 

 

 

512 Position

 

 

 

 

 

 

5

 

 

 

 

 

 

 

RX Path

 

 

 

 

JTAG

PCKT

Timing

 

 

 

 

Connection Memory

 

 

 

TEST

 

 

 

 

 

 

 

 

 

Pins

RES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PPFRi

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PPFTi/o

Unit

 

 

 

 

 

 

 

 

 

 

Internal

 

 

 

F0i/o

 

 

 

CPU Interface

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Registers

 

 

 

 

 

 

 

 

 

 

 

 

8

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SPCKo

C4/8R1

C4/8R2

IRQ

AD0-7

DS/RD

R/W\WR

AS/ALE

CS

DTA

 

 

 

VDD

VSS

 

Figure 1 - Functional Block Diagram

2-231

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Contents Applications FeaturesPin Connections PIN PlccPin # Pin DescriptionDescription 100 No ConnectionPckt PckrTDI Ground +5 Volt Power SupplyFunctional Description Time Slot Interchange Operation SwitchingDevice Operation Serial I/O 4 Mbps C4/8R1&2 8 MHz Serial I/O 8 Mbps C4/8R1&2 4 MHz Serial I/O 2 MbpsPPFRi PDi0-7 Pckr or Pckt TCP bit = PPFTi/o Ppfp bit =1 PDo0-7Transmit Path Bypass/Parallel-Switching PathReceive Path Serial Data Port Serial Frame Pulse Parallel Port Clock Signals and FramingParallel Data Port Output Driver Enable Control Capability Timing and Switching ControlTiming Mode 1 TM1 Ring Master Asynchronous Parallel Port With ST-BUS Clock MasterTM1 Multiple-MT90840 Sub-Mode Pfdi Timing Mode 2 TM2 Ring SlaveAsynchronous Parallel Port With ST-BUS Clock Slave Internal 4.096 MHz Clock Divider External PLL and C4 Phase-CorrectionTM2 Multiple-MT90840 Sub-Mode Sfdi Sfdi = Synchronous Parallel Port With ST-BUS Clock SlaveSfdi = MT90840 MT90840 Per-channel Functions MT90840 Throughput DelayPer-channel Bypass on the Parallel Port Per-channel Control Outputs on the Parallel PortMT90840 Throughput Delay Summary Mode Data Rates Minimum Delay Total Throughput DelaySTi0 STo0 Per-channel Message Mode Serial and ParallelPer-channel Tri-state Serial and Parallel Per-channel Direction Control on the Serial PortAddressing Serial Data Memory Addressing2.048 Mbps Add/Drop Mode Tpdm Addressing Address Mapping of the Internal Registers Microprocessor PortIRQ Interrupt Pin DTA Data Transfer Acknowledgment PinHex Accessing Internal MemoriesMT90840 Register Address Mapping Clock Quality and TM2 Rpcm Access Integrity Clock Quality and TM1 Tpcm Access IntegrityDetecting Clock Presence Memory Block-ProgrammingJtag Support Timing Mode InitializationBoundary-Scan Instruction Register Test Access Port TAPI01 Instruction Description Boundary-Scan Instruction RegisterCells Definition Test Data RegistersBoundary-Scan Register Cells Definitions HighTiming Mode Register TIM READ/WRITE Interface Mode Selection Register IMS READ/WRITERegister Description DR1Alarm Status Register ALS READ/WRITE General Purpose Mode Register GPM READ/WRITEControl Register CR READ/WRITE Phase Status Registers PSD Read OnlyAB9 AB8 Internal Memory DescriptionAB11 AB10 CTI Distributed Architecture Implemented with the MT90840 Distributed Isochronous NetworkCharacteristics Sym Min Typ Max Units Test Conditions Parameter Symbol Min Max UnitsCharacteristics Sym Min Typ‡ Max Units Test Conditions/Pins Absolute Maximum RatingsTM1 Characteristics Sym Min Typ‡ Max Units Test ConditionsUnits Test Conditions Characteristics Sym Min Typ‡Output Pin Test Point Serial Port with Positive Polarity F0 GCI Serial Port with Negative Polarity F0 ST-BUSSerial Port Timing for 2.048 Mbps TM2 SFDi = 0 and TM3 267 F0 Frame Sync with Positive Polarity Spfp = F0 Frame Sync with Negative Polarity Spfp =Serial Port Timing for 8.192 Mbps TM1 and TM2 SFDi = Frame Sync with Negative Polarity Spfp = Frame Sync with Positive Polarity Spfp =Timing for the Parallel Port External Control Lines CTo0-3 Parallel Port Receive Timing AC Electrical Characteristics Parallel Data PortParallel Port in Timing Mode 774 Up to 3 C4 cycles + Register takd-wr RD/WRAD0 Intel/National Multiplexed Bus TimingCharacteristics Sym Min AC Electrical Characteristics† Motorola Multiplexed Bus ModeAD0-13 AD0-7Boundary Scan Test Port Timing Parameter Symbol Min Max Units Test ConditionsDim Min Max Dimensions in inches are not exactNot to scale 280

MT90840 specifications

The Mitel MT90840 is an advanced telecommunications device designed to enhance connectivity and communication capabilities for various applications. With its robust array of features and technologies, the MT90840 is well-suited for businesses looking to improve their communications infrastructure.

One of the standout features of the Mitel MT90840 is its integration of voice and data services. This allows users to manage their communications more efficiently, streamlining operations and reducing costs. The device supports a wide range of voice codecs, ensuring high-quality audio during calls and providing flexibility for users who may require different standards for different applications.

Another key characteristic of the MT90840 is its scalability. The device is designed to grow with the needs of a business. It supports multiple lines and can be configured to handle an increasing number of users without compromising performance. This scalability is particularly advantageous for organizations that may undergo growth or changes in their communication needs over time.

The Mitel MT90840 also incorporates advanced networking technologies, such as VoIP (Voice over Internet Protocol). This allows users to make voice calls using the internet rather than traditional phone lines, reducing costs for long-distance calls and improving overall communication efficiency. The device is equipped with features that support secure, encrypted communication, further protecting sensitive data and conversations from potential breaches.

Additionally, the MT90840 is designed with user-friendliness in mind. It features an intuitive interface that simplifies operation, making it accessible even for those who may not be tech-savvy. The device is compatible with various peripherals, such as headsets and conferencing equipment, further enhancing its usability in diverse settings, from small offices to large conference rooms.

Moreover, the Mitel MT90840 offers excellent interoperability with a variety of third-party applications. This flexibility enables organizations to integrate the device into their existing systems seamlessly, thereby enhancing productivity without requiring a complete technological overhaul.

In conclusion, the Mitel MT90840 stands out as a versatile and reliable telecommunications solution. Its rich feature set, including voice and data integration, scalability, VoIP capabilities, user-friendly interface, and interoperability, makes it an ideal choice for businesses looking to elevate their communications strategy.
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