Mitel MT90840 manual Serial Port with Negative Polarity F0 ST-BUS

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Preliminary Information

MT90840

Foi input (8 kHz)

C4/8R1 (4.096 MHz)

STi0-7

STo0-7

tfrw

	tfrs	tfrh
		tclk
tT	tclkh	tclkl
	bit 0, ch. 31
		tsod

bit 0, ch. 31



	tstis			tstih

bit 7, ch. 0

Serial Port with Negative Polarity F0 (ST-BUS)

C4/8R1 (4.096 MHz)

STo0-7

STi0-7

F0i input (8 kHz)

		tclk
tt	tclkh	tclkl
	tsod
bit 0, ch. 31		bit 7, ch. 0	bit 6, ch. 0
		tstis	tstih
bit 0, ch. 31			bit 7, ch. 0
	tfrs	tfrh
		tfrw

Serial Port with Positive Polarity F0 (GCI)

Note: In TM2 with SFDI=1, C4/8R1 may have reversed polarity from that shown.

Figure 18 - Serial Port Timing for 2.048 Mbps Operation - TM2 (SFDi = 1) and TM1

2-265

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Contents Applications FeaturesPin Connections PIN PlccNo Connection Pin DescriptionPin # Description 100TDI PckrPckt Ground +5 Volt Power SupplyDevice Operation Time Slot Interchange Operation SwitchingFunctional Description Pckr or Pckt TCP bit = PPFTi/o Ppfp bit =1 PDo0-7 C4/8R1&2 4 MHz Serial I/O 2 MbpsSerial I/O 4 Mbps C4/8R1&2 8 MHz Serial I/O 8 Mbps PPFRi PDi0-7Receive Path Bypass/Parallel-Switching PathTransmit Path Serial Data Port Parallel Data Port Parallel Port Clock Signals and FramingSerial Frame Pulse Asynchronous Parallel Port With ST-BUS Clock Master Timing and Switching ControlOutput Driver Enable Control Capability Timing Mode 1 TM1 Ring MasterAsynchronous Parallel Port With ST-BUS Clock Slave Timing Mode 2 TM2 Ring SlaveTM1 Multiple-MT90840 Sub-Mode Pfdi TM2 Multiple-MT90840 Sub-Mode Sfdi External PLL and C4 Phase-CorrectionInternal 4.096 MHz Clock Divider Sfdi = MT90840 Synchronous Parallel Port With ST-BUS Clock SlaveSfdi = Per-channel Control Outputs on the Parallel Port MT90840 Throughput DelayMT90840 Per-channel Functions Per-channel Bypass on the Parallel PortMT90840 Throughput Delay Summary Mode Data Rates Minimum Delay Total Throughput DelayPer-channel Direction Control on the Serial Port Per-channel Message Mode Serial and ParallelSTi0 STo0 Per-channel Tri-state Serial and ParallelAddressing Serial Data Memory Addressing2.048 Mbps Add/Drop Mode Tpdm Addressing DTA Data Transfer Acknowledgment Pin Microprocessor PortAddress Mapping of the Internal Registers IRQ Interrupt PinMT90840 Register Address Mapping Accessing Internal MemoriesHex Memory Block-Programming Clock Quality and TM1 Tpcm Access IntegrityClock Quality and TM2 Rpcm Access Integrity Detecting Clock PresenceJtag Support Timing Mode InitializationBoundary-Scan Instruction Register Test Access Port TAPBoundary-Scan Instruction Register I01 Instruction DescriptionHigh Test Data RegistersCells Deﬁnition Boundary-Scan Register Cells DeﬁnitionsDR1 Interface Mode Selection Register IMS READ/WRITETiming Mode Register TIM READ/WRITE Register DescriptionAlarm 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 NetworkAbsolute Maximum Ratings Parameter Symbol Min Max UnitsCharacteristics Sym Min Typ Max Units Test Conditions Characteristics Sym Min Typ‡ Max Units Test Conditions/PinsTM1 Characteristics Sym Min Typ‡ Max Units Test ConditionsOutput Pin Test Point Characteristics Sym Min Typ‡Units Test Conditions 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 ConditionsNot to scale Dimensions in inches are not exactDim Min Max 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.