Mitel MT90840 manual Characteristics Sym Min Typ‡ Max Units Test Conditions, TM1

Page 33

 

Preliminary Information

 

 

 

 

 

MT90840

 

AC Electrical Characteristics - Voltages are with respect to ground (VSS) unless otherwise stated.

 

 

 

 

 

 

 

 

 

 

 

Characteristics

Sym

Min

Typ‡

Max

Units

Test Conditions

 

1

C4/8 Input - Clock Period:

tclk

 

 

 

 

C4/8R1 or C4/8R2

 

 

4.096 MHz (2.048 & 4.096 Mbps)

 

200

244

 

ns

 

 

 

8.192 MHz (8.192 Mbps)

 

100

122

 

ns

 

 

 

SPCKo Output - Clock Period from

 

224

 

259

ns

19.44 MHz 60/40%

 

 

internal divider (2.048 & 4.096 Mbps)

 

 

 

 

 

duty-cycle clock at

 

 

 

 

 

 

 

 

PCKR

 

 

SPCKo Output - Clock Period

 

 

 

 

 

 

 

 

generated from external C4/8

 

241

 

245

ns

 

 

 

reference (2.048 and 4.096 Mbps)

 

 

 

 

 

C4/8R1 input with 244 ns

 

 

 

 

 

 

 

 

cycle

 

 

 

 

 

 

 

 

 

 

2

C4/8 Input Clock Width HIGH

tclkh

 

 

 

 

C4/8R1 or C4/8R2

 

 

4.096 MHz (2.048 & 4.096 Mbps)

 

85

122

 

ns

 

 

 

8.192 MHz (8.192 Mbps)

 

50

61

 

ns

 

 

 

SPCKo Output - Clock Width HIGH

 

 

 

 

 

19.44 MHz 60/40%

 

 

from internal divider (2.048 & 4.096

 

101

 

135

ns

duty-cycle clock at

 

 

Mbps)

 

 

 

 

 

PCKR

 

 

SPCKo Output - Clock Width HIGH

 

 

 

 

 

 

 

 

generated from external C4/8

 

110

 

 

ns

C4/8R1 input with min.

 

 

reference (2.048 and 4.096 Mbps)

 

 

 

 

 

115 ns semi-cycle

 

 

 

 

 

 

 

 

 

 

3

C4/8 Input - Clock Width LOW

tclkl

 

 

 

 

C4/8R1 or C4/8R2

 

 

4.096 MHz (2.048 & 4.096 Mbps)

 

85

122

 

ns

 

 

 

8.192 MHz (8.192 Mbps)

 

50

61

 

ns

 

 

 

SPCKo Output - Clock Width LOW from

 

 

 

 

 

PCKR with 60/40% duty

 

 

internal divider (2.048 & 4.096 Mbps)

 

101

 

135

ns

cycle

 

 

SPCKo Output - Clock Width LOW

 

 

 

 

 

C4/8R1 input with

 

 

generated from external C4/8

 

 

 

 

 

minimum 115 ns

 

 

reference (2.048 and 4.096 Mbps)

 

110

 

 

ns

half-cycle

 

 

 

 

 

 

 

 

 

 

4

CLK rise/fall time

tt

 

5

 

ns

 

 

5

F0 output delay from SPCKo

tdf

 

 

32

ns

CL=30pF

 

 

(TM2 & TM3, 2.048 and 4.096 Mbps)

 

 

 

51

 

CL=150pF

 

 

F0 output delay from C4/8 input

 

 

 

30

ns

CL=30pF

 

 

(TM2 & TM3, 8.192 Mbps)

 

 

 

 

 

 

 

 

 

46

 

CL=150pF

 

 

 

 

 

 

 

 

6

F0i Setup Time from C4/8 input edge

tfrs

 

 

 

 

 

 

 

TM1

 

0

 

 

ns

C4/8 falling edge

 

 

TM2 with SFDI =1

 

28

 

 

ns

 

 

 

 

 

 

 

 

 

 

 

7

F0i Hold Time from C4/8 input edge

tfrh

 

 

 

 

 

 

 

TM1

 

8

 

 

ns

C4/8 falling edge

 

 

TM2 with SFDI =1

 

0

 

 

ns

C4/8 rising or falling

 

 

 

 

 

 

 

 

 

 

8

F0i Input Frame Pulse Width

tfrw

 

 

 

 

 

 

 

2.048, 4.096, 8.192 Mbps

 

35

 

 

ns

 

 

 

 

 

 

 

 

 

 

 

9

STo Delay - Active to High-Z,

taz

 

 

 

 

CL=30pF, RL=1K

 

 

2.048 and 4.096 Mbps (TM2 &TM3)

 

 

 

38

ns

 

 

 

2.048 and 4.096 Mbps (TM1)

 

 

 

50

ns

 

 

 

8.192 Mbps (STio0-3)

 

 

 

26

ns

 

 

 

 

 

 

 

 

 

 

2-263

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Page 32 Page 34
Contents Applications FeaturesPin Connections PIN PlccPin # Pin DescriptionDescription 100 No ConnectionPckr PcktTDI Ground +5 Volt Power SupplyTime Slot Interchange Operation Switching Functional DescriptionDevice 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 PDo0-7Bypass/Parallel-Switching Path Transmit PathReceive Path Serial Data Port Parallel Port Clock Signals and Framing Serial Frame PulseParallel Data Port Output Driver Enable Control Capability Timing and Switching ControlTiming Mode 1 TM1 Ring Master Asynchronous Parallel Port With ST-BUS Clock MasterTiming Mode 2 TM2 Ring Slave TM1 Multiple-MT90840 Sub-Mode PfdiAsynchronous Parallel Port With ST-BUS Clock Slave External PLL and C4 Phase-Correction Internal 4.096 MHz Clock DividerTM2 Multiple-MT90840 Sub-Mode Sfdi Synchronous Parallel Port With ST-BUS Clock Slave Sfdi =Sfdi = 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 PinAccessing Internal Memories HexMT90840 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 ConditionsCharacteristics Sym Min Typ‡ Units Test ConditionsOutput 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 ConditionsDimensions in inches are not exact Dim Min MaxNot 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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