Echelon FT 3150 Smart Transceiver Uživatelský manuál Strana 1

FT 3120®/ FT 3150®Smart Transceiver Data Book@®005-0139-01D

Chapter 1 - Introduction4 FT 3120/FT 3150 Smart Transceiver Data BookThe FT Smart Transceivers also provide electrical isolation for I/O devices that

Chapter 4 - Hardware Design Considerations94 FT 3120 / FT 3150 Smart Transceiver Data BookTable 4.1 FT Smart Transceiver External Components In Figure

FT 3120 / FT 3150 Smart Transceiver Data Book 95PC Board Layout GuidelinesFigure 4.2 Optional COMM_ACTIVE LED Drive CircuitThe example COMM_ACTIVE LED

Chapter 4 - Hardware Design Considerations96 FT 3120 / FT 3150 Smart Transceiver Data Bookare possible as long as the general principles discussed lat

FT 3120 / FT 3150 Smart Transceiver Data Book 97PC Board Layout Guidelines Figure 4.3 FT Smart Transceiver PCB Layout (with FT-X1 Transformer)T2 T1GND

Chapter 4 - Hardware Design Considerations98 FT 3120 / FT 3150 Smart Transceiver Data BookFigure 4.4 Star Ground Design EMI Design IssuesThe high-spee

FT 3120 / FT 3150 Smart Transceiver Data Book 99EMI Design IssuesCareful PCB layout is important to ensure that a FT Smart Transceiver based-device wi

Chapter 4 - Hardware Design Considerations100 FT 3120 / FT 3150 Smart Transceiver Data Bookcurrent flows during Vgate transitions, and more common-mod

FT 3120 / FT 3150 Smart Transceiver Data Book 101ESD Design IssuesIn summary, the following general rules and guidelines apply:• The faster the FT Sma

Chapter 4 - Hardware Design Considerations102 FT 3120 / FT 3150 Smart Transceiver Data Bookinto the ground plane. If a positive ESD hit discharges int

FT 3120 / FT 3150 Smart Transceiver Data Book 103Lightning ProtectionShield ProtectionGas Discharge, MOV, or TVS devices may be used for the shield-to

FT 3120/FT 3150 Smart Transceiver Data Book 5Related DocumentationUnlike bus wiring designs, the free topology FT Smart Transceivers use a wiring sche

Chapter 4 - Hardware Design Considerations104 FT 3120 / FT 3150 Smart Transceiver Data BookWhen the network data line extends outside of a building or

FT 3120 / FT 3150 Smart Transceiver Data Book 105EN 61000-4 Electromagnetic Compatibility (EMC) TestingFor more information on levels and installation

Chapter 4 - Hardware Design Considerations106 FT 3120 / FT 3150 Smart Transceiver Data BookFigure 4.9 Typical EN 61000-4-6 Test Set-up for Unshielded

FT 3120 / FT 3150 Smart Transceiver Data Book 107EN 61000-4 Electromagnetic Compatibility (EMC) TestingFigure 4.10 Typical EN61000-4-6 Test Set-up for

Chapter 4 - Hardware Design Considerations108 FT 3120 / FT 3150 Smart Transceiver Data Book Figure 4.11 FT Smart Transceiver Common-Mode Noise Immuni

FT 3120 / FT 3150 Smart Transceiver Data Book 1095Network Cabling and Connections

Chapter 5 - Network Cabling and Connections110 FT 3120 / FT 3150 Smart Transceiver Data BookNetwork Connection The network connection (NET1 and NET2)

FT 3120 / FT 3150 Smart Transceiver Data Book 111System Performance and Cable SelectionFigure 5.4 Loop TopologyFigure 5.5 Mixed TopologyIn the event t

Chapter 5 - Network Cabling and Connections112 FT 3120 / FT 3150 Smart Transceiver Data BookEchelon has qualified a variety of cables for use with TP/

FT 3120 / FT 3150 Smart Transceiver Data Book 113Cable Termination and Shield GroundingTable 5.2 Free Topology SpecificationsThe free topology transmi

Chapter 1 - Introduction6 FT 3120/FT 3150 Smart Transceiver Data BookLONMARK™ Layers 1-6 Interoperability Guidelines (078-0014-01)LONMARK™ Applicati

Chapter 5 - Network Cabling and Connections114 FT 3120 / FT 3150 Smart Transceiver Data BookOnly one LPI-10 interface is supported per segment. The LP

FT 3120 / FT 3150 Smart Transceiver Data Book 1156Programming Considerations

Chapter 6 - Programming Considerations116 FT 3120 / FT 3150 Smart Transceiver Data BookApplication Program Development and ExportApplications are init

FT 3120 / FT 3150 Smart Transceiver Data Book 117NodeBuilder Development ToolSpecify the target hardware clock speed in Clock Speed on the Hardware ta

Chapter 6 - Programming Considerations118 FT 3120 / FT 3150 Smart Transceiver Data Book

FT 3120 / FT 3150 Smart Transceiver Data Book 119AFT Smart Transceiver Design Checklist

Appendix A - FT Smart Transceiver Design Checklist120 FT 3120 / FT 3150 Smart Transceiver Data BookIntroductionThis appendix includes a checklist to e

FT 3120 / FT 3150 Smart Transceiver Data Book 121Device ChecklistTable A.2 FT Smart Transceiver PCB LayoutTable A.3 FT Smart Transceiver ProgrammingTa

Appendix A - FT Smart Transceiver Design Checklist122 FT 3120 / FT 3150 Smart Transceiver Data Book

FT 3120 / FT 3150 Smart Transceiver Data Book 123BQualified TP/FT-10 Cable Specifications and Sources

FT 3120 / FT 3150 Smart Transceiver Data Book 72Hardware Resources

Appendix B - Qualified TP/FT-10 Cable Specifications and Sources124 FT 3120 / FT 3150 Smart Transceiver Data BookIntroductionThis appendix documents g

FT 3120 / FT 3150 Smart Transceiver Data Book 125Qualified CablesTable B.2 General SpecificationsTable B.3 Impedance CharacteristicsTable B.4 Attenuat

Appendix B - Qualified TP/FT-10 Cable Specifications and Sources126 FT 3120 / FT 3150 Smart Transceiver Data BookTable B.5 Worst-Pair Near-End Crossta

FT 3120 / FT 3150 Smart Transceiver Data Book 127CDesign and Handling Guidelines

Appendix C - Design and Handling Guidelines128 FT 3120 / FT 3150 Smart Transceiver Data BookApplication ConsiderationsTermination of Unused PinsBecaus

FT 3120 / FT 3150 Smart Transceiver Data Book 129Application ConsiderationsThe maximum peak temperature for the FT 3150 is 235ºC. For the FT 3120, the

Appendix C - Design and Handling Guidelines130 FT 3120 / FT 3150 Smart Transceiver Data BookFigure C.2 Digital InputFigure C.3 Digital I/OPower Supply

FT 3120 / FT 3150 Smart Transceiver Data Book 131Application Considerations• Bypass capacitors should be connected between the VDD and VSS pairs with

Appendix C - Design and Handling Guidelines132 FT 3120 / FT 3150 Smart Transceiver Data BookFigure C.4 Switching Currents for CL < 5pFFigure C.5 Sw

FT 3120 / FT 3150 Smart Transceiver Data Book 133Handling Precautions and Electrostatic DischargeSoldering Surface Mount (SMT) Parts (Free Topology Tr

Chapter 2 - Hardware Resources8 FT 3120 / FT 3150 Smart Transceiver Data BookOverviewThe FT 3150 Smart Transceiver supports external memory for more c

Appendix C - Design and Handling Guidelines134 FT 3120 / FT 3150 Smart Transceiver Data Book3. All low-impedance equipment (pulse generators, etc.) sh

FT 3120 / FT 3150 Smart Transceiver Data Book 135Handling Precautions and Electrostatic DischargeFigure C.6 Networks for Minimizing ESD and Reducing C

Appendix C - Design and Handling Guidelines136 FT 3120 / FT 3150 Smart Transceiver Data BookFigure C.7 Typical Manufacturing Work Station1. The follow

FT 3120 / FT 3150 Smart Transceiver Data Book 137Power Distribution and Decoupling Capacitors• Use diodes, transient voltage suppressors (ex: MOSorbs,

Appendix C - Design and Handling Guidelines138 FT 3120 / FT 3150 Smart Transceiver Data BookRecommended Bypass Capacitor PlacementProper decoupling is

FT 3120 / FT 3150 Smart Transceiver Data Book 139Recommended Bypass Capacitor PlacementFigure C.9 Minimum Recommended Capacitor Placement (Sheet 1 of

Appendix C - Design and Handling Guidelines140 FT 3120 / FT 3150 Smart Transceiver Data BookFigure C.11 Minimum Recommended Capacitor Placement (Sheet

FT 3120 / FT 3150 Smart Transceiver Data Book 141DReference Design Schematics and Layout

Appendix D - Reference Design Schematics and Layout142 FT 3120 / FT 3150 Smart Transceiver Data BookMini Evaluation Kit BoardThis appendix provides th

FT 3120 / FT 3150 Smart Transceiver Data Book 143FT 3150 Evaluation Board CoreFT 3150 Evaluation Board Core5544332211D DC CB BA ASmartTransceiver720 2

FT 3120 / FT 3150 Smart Transceiver Data Book 9Neuron Processor ArchitectureProcessor 2 is the network processor that implements layers 3 through 6

Appendix D - Reference Design Schematics and Layout144 FT 3120 / FT 3150 Smart Transceiver Data BookFT 3150 Evaluation Board Peripheral Circuitry55443

FT 3120 / FT 3150 Smart Transceiver Data Book 145FT 3150 Evaluation Board Composite Top LayerFT 3150 Evaluation Board Composite Top Layer

Appendix D - Reference Design Schematics and Layout146 FT 3120 / FT 3150 Smart Transceiver Data BookFT 3150 Evaluation Board Top Layer

FT 3120 / FT 3150 Smart Transceiver Data Book 147FT 3150 Evaluation Board Internal Ground LayerFT 3150 Evaluation Board Internal Ground Layer

Appendix D - Reference Design Schematics and Layout148 FT 3120 / FT 3150 Smart Transceiver Data BookFT 3150 Evaluation Board Internal Power Layer

FT 3120 / FT 3150 Smart Transceiver Data Book 149FT 3150 Evaluation Board Bottom LayerFT 3150 Evaluation Board Bottom Layer

Appendix D - Reference Design Schematics and Layout150 FT 3120 / FT 3150 Smart Transceiver Data BookFT 3150 Evaluation Board Composite Bottom Layer

www.echelon.com

Chapter 2 - Hardware Resources10 FT 3120 / FT 3150 Smart Transceiver Data Bookaddress, data, and R/W signals are reflected on the corresponding extern

FT 3120 / FT 3150 Smart Transceiver Data Book 11Neuron Processor Architectureaddresses for CALL instructions, and may also be used for temporary dat

Chapter 2 - Hardware Resources12 FT 3120 / FT 3150 Smart Transceiver Data BookTable 2.3 Program Control InstructionsTable 2.4 Memory/Stack Instruction

FT 3120 / FT 3150 Smart Transceiver Data Book 13Memory AllocationTable 2.5 ALU InstructionsMemory AllocationFT 3120 Smart TransceiverSee Figure 2.6

Echelon, LON, LONWORKS, Neuron, 3120, 3150, LonTalk, NodeBuilder, LNS, LonMaker, i.LON, and the Echelon logo are trademarks of Echelon Corporation reg

Chapter 2 - Hardware Resources14 FT 3120 / FT 3150 Smart Transceiver Data Book— Unique 48-bit Neuron ID (written at the factory).— User-written applic

FT 3120 / FT 3150 Smart Transceiver Data Book 15Memory Allocation• Unique 48-bit Neuron ID.• Optional user-written application code and data tables.

Chapter 2 - Hardware Resources16 FT 3120 / FT 3150 Smart Transceiver Data BookStatic RAMBoth FT Smart Transceivers contain 2048 bytes of static RAM. T

FT 3120 / FT 3150 Smart Transceiver Data Book 17Input/OutputTable 2.7 External Memory Interface PinsThe preferred method of interfacing the FT Smart

Chapter 2 - Hardware Resources18 FT 3120 / FT 3150 Smart Transceiver Data BookFigure 2.7 Timer/Counter CircuitsClock InputThe FT Smart Transceivers op

FT 3120 / FT 3150 Smart Transceiver Data Book 19Additional FunctionsFigure 2.9 Test Point Levels for CLK1 Duty Cycle MeasurementsThe FT 3120 Smart T

Chapter 2 - Hardware Resources20 FT 3120 / FT 3150 Smart Transceiver Data Book• Software command either the from the application program or from the n

FT 3120 / FT 3150 Smart Transceiver Data Book 21Additional FunctionsSoftware Controlled ResetWhen the CPU watchdog timer expires, or a software comm

Chapter 2 - Hardware Resources22 FT 3120 / FT 3150 Smart Transceiver Data BookReset Processes and TimingDuring the reset period, the I/O pins are in a

FT 3120 / FT 3150 Smart Transceiver Data Book 23Additional Functions• Off-chip RAM initialization• Random number seed calculation• System RAM setup•

FT 3120 / 3150 Smart Tranceiver Data Book iTable of ContentsChapter 1 - Introduction ...

Chapter 2 - Hardware Resources24 FT 3120 / FT 3150 Smart Transceiver Data Book• One-second timer initialization• Scheduler initializationDuring intern

FT 3120 / FT 3150 Smart Transceiver Data Book 25Additional Functions• State wait — wait for the device to leave the applicationless state.• Pointer

Chapter 2 - Hardware Resources26 FT 3120 / FT 3150 Smart Transceiver Data BookSystem RAM Setup

FT 3120 / FT 3150 Smart Transceiver Data Book 27Additional FunctionsSERVICE PinThe SERVICE pin alternates between input and open-drain output at a 7

Chapter 2 - Hardware Resources28 FT 3120 / FT 3150 Smart Transceiver Data BookTable 2.10 Service LED Behavior During Different StatesThe SERVICE pin i

FT 3120 / FT 3150 Smart Transceiver Data Book 29Integrity MechanismsThe system image checksum covers the system image. It is only available when the

Chapter 2 - Hardware Resources30 FT 3120 / FT 3150 Smart Transceiver Data BookWhen an EEPROM recovery occurs due to a checksum failure or other error,

FT 3120 / FT 3150 Smart Transceiver Data Book 313 Input/Output Interfaces

Chapter 3 - Input/Output Interfaces32 FT 3120 / FT 3150 Smart Transceiver Data BookOverviewThe FT 3120 and FT 3150 Smart Transceivers connect to appli

FT 3120 / FT 3150 Smart Transceiver Data Book 33Hardware ConsiderationsHardware ConsiderationsTables 3.1 through 3.5 list the 34 different I/O objects

Table of Contentsii FT 3120 / 3150 Smart Tranceiver Data Book Direct I/O Objects ...

Chapter 3 - Input/Output Interfaces34 FT 3120 / FT 3150 Smart Transceiver Data BookTable 3.1 Summary of Direct I/O ObjectsTable 3.2 Summary of Paralle

FT 3120 / FT 3150 Smart Transceiver Data Book 35Hardware ConsiderationsTable 3.4 Summary of Timer/Counter Input ObjectsTable 3.5 Summary of Timer/Coun

Chapter 3 - Input/Output Interfaces36 FT 3120 / FT 3150 Smart Transceiver Data BookFigure 3.2 Synchronization of External Signals(200 ns pulsewith 10M

FT 3120 / FT 3150 Smart Transceiver Data Book 37I/O Timing IssuesFigure 3.3 Summary of I/O ObjectsI/O Timing IssuesThe FT Smart Transceiver I/O timing

Chapter 3 - Input/Output Interfaces38 FT 3120 / FT 3150 Smart Transceiver Data Book• The FT Smart Transceiver hardwareThe contribution of the schedule

FT 3120 / FT 3150 Smart Transceiver Data Book 39I/O Timing Issues Figure 3.4 when-Clause to when-Clause and Scheduler Overhead LatencyThe when-clau

Chapter 3 - Input/Output Interfaces40 FT 3120 / FT 3150 Smart Transceiver Data Book Direct I/O ObjectsThe timing numbers shown in this section are val

FT 3120 / FT 3150 Smart Transceiver Data Book 41Direct I/O ObjectsFigure 3.6 Bit Input Latency ValuesFigure 3.7 Bit Output Latency ValuesByte Input/Ou

Chapter 3 - Input/Output Interfaces42 FT 3120 / FT 3150 Smart Transceiver Data Bookcontrol and addressing. See Figures 3.8, 3.9, and 3.10. The IO0 rep

FT 3120 / FT 3150 Smart Transceiver Data Book 43Direct I/O ObjectsLeveldetect InputPins IO0 – IO7 may be individually configured as leveldetect input

FT 3120 / 3150 Smart Tranceiver Data Book iiiChapter 4 - Hardware Design Considerations ...91Introducti

Chapter 3 - Input/Output Interfaces44 FT 3120 / FT 3150 Smart Transceiver Data BookNibble Input/OutputGroups of four consecutive pins between IO0 – IO

FT 3120 / FT 3150 Smart Transceiver Data Book 45Parallel I/O ObjectsFigure 3.14 Nibble Output Latency Values Parallel I/O ObjectsMuxbus Input/OutputTh

Chapter 3 - Input/Output Interfaces46 FT 3120 / FT 3150 Smart Transceiver Data BookFigure 3.15 Muxbus I/O ObjectParallel Input/Output Pins IO0 – IO10

FT 3120 / FT 3150 Smart Transceiver Data Book 47Parallel I/O Objectsthe slave B configuration, with the other microprocessor as the master. Handshakin

Chapter 3 - Input/Output Interfaces48 FT 3120 / FT 3150 Smart Transceiver Data Book Notes:1. Refer to the FT 3120 and FT 3150 Smart Transceiver Datas

FT 3120 / FT 3150 Smart Transceiver Data Book 49Parallel I/O ObjectsNotes:1. Refer to the FT 3120 and FT 3150 Smart Transceiver Datasheet for detailed

Chapter 3 - Input/Output Interfaces50 FT 3120 / FT 3150 Smart Transceiver Data Bookfilled with 0s. The master program writes once to the slave and rea

FT 3120 / FT 3150 Smart Transceiver Data Book 51Parallel I/O Objects/* This is the slave program. After reset, the output buffer is filled with data a

Chapter 3 - Input/Output Interfaces52 FT 3120 / FT 3150 Smart Transceiver Data BookThe FT Smart Transceiver may appear as two registers in the address

FT 3120 / FT 3150 Smart Transceiver Data Book 53Parallel I/O ObjectsHandshakingHandshaking allows the master to monitor the slave between every byte t

Table of Contentsiv FT 3120 / 3150 Smart Tranceiver Data BookAppendix C - Design and Handling Guidelines ...

Chapter 3 - Input/Output Interfaces54 FT 3120 / FT 3150 Smart Transceiver Data BookNotes: 1. The slave B write cycle (master read) CS pulse width is d

FT 3120 / FT 3150 Smart Transceiver Data Book 55Parallel I/O ObjectsOnce in possession of the write token, the device (FT Smart Transceiver or a host

Chapter 3 - Input/Output Interfaces56 FT 3120 / FT 3150 Smart Transceiver Data BookRead (length)Write (data_0) // master begins data transfer to slave

FT 3120 / FT 3150 Smart Transceiver Data Book 57Serial I/O Objects Serial I/O ObjectsThe timing numbers shown in this section are valid for both an ex

Chapter 3 - Input/Output Interfaces58 FT 3120 / FT 3150 Smart Transceiver Data BookFigure 3.23 Bitshift Input Latency ValuesSymbol Description Typ @ 1

FT 3120 / FT 3150 Smart Transceiver Data Book 59Serial I/O ObjectsFigure 3.24 Bitshift Output Latency ValuesI2C Input/OutputThis I/O object is used to

Chapter 3 - Input/Output Interfaces60 FT 3120 / FT 3150 Smart Transceiver Data BookFigure 3.25 I2C I/O ObjectMagcard InputThis I/O object is used to t

FT 3120 / FT 3150 Smart Transceiver Data Book 61Serial I/O ObjectsLSB first. In addition, any one of the pins IO0 – IO7 may be used as a timeout pin t

Chapter 3 - Input/Output Interfaces62 FT 3120 / FT 3150 Smart Transceiver Data BookMagtrack1 InputThis input object type is used to read synchronous s

FT 3120 / FT 3150 Smart Transceiver Data Book 63Serial I/O ObjectsData are recognized in the IATA format as a series of 6-bit characters plus an even

FT 3120 / FT 3150 Smart Transceiver Data Book 11Introduction

Chapter 3 - Input/Output Interfaces64 FT 3120 / FT 3150 Smart Transceiver Data BookFigure 3.29 Neurowire (SPI) Master TimingNeurowire Slave ModeIn Neu

FT 3120 / FT 3150 Smart Transceiver Data Book 65Serial I/O Objectsthe active edge of the clock to negative. One of the IO0 – IO7 pins may be designat

Chapter 3 - Input/Output Interfaces66 FT 3120 / FT 3150 Smart Transceiver Data BookThe chip select logic for the Neurowire slave can be handled by the

FT 3120 / FT 3150 Smart Transceiver Data Book 67Serial I/O ObjectsThe duration of this function call is a function of the number of data bits transfer

Chapter 3 - Input/Output Interfaces68 FT 3120 / FT 3150 Smart Transceiver Data BookFigure 3.33 Touch I/O ObjectThe leveldetect input object can be use

FT 3120 / FT 3150 Smart Transceiver Data Book 69Serial I/O ObjectsThe Touch I/O object can run at FT Smart Transceiver clock rates of 5MHz and 10MHz o

Chapter 3 - Input/Output Interfaces70 FT 3120 / FT 3150 Smart Transceiver Data BookFigure 3.34 Wiegand Input ObjectTimer/Counter Input ObjectsThe FT S

FT 3120 / FT 3150 Smart Transceiver Data Book 71Timer/Counter Input ObjectsInput timer/counter objects have the advantage (over non-timer/counter obje

Chapter 3 - Input/Output Interfaces72 FT 3120 / FT 3150 Smart Transceiver Data BookThe resolution and range of the timer/counter period options is sho

FT 3120 / FT 3150 Smart Transceiver Data Book 73Timer/Counter Input ObjectsThe resolution and range of the timer/counter period options are shown in T

Chapter 1 - Introduction2 FT 3120/FT 3150 Smart Transceiver Data BookIntroductionThis manual provides detailed technical specifications on the electr

Chapter 3 - Input/Output Interfaces74 FT 3120 / FT 3150 Smart Transceiver Data BookThe infrared input object, based on the input data stream, generate

FT 3120 / FT 3150 Smart Transceiver Data Book 75Timer/Counter Input Objects*If the measurement is new, tret = 52 µs. If a new time is not being return

Chapter 3 - Input/Output Interfaces76 FT 3120 / FT 3150 Smart Transceiver Data Book*If the measurement is new, tret = 52 µs. If a new time is not bein

FT 3120 / FT 3150 Smart Transceiver Data Book 77Timer/Counter Input ObjectsPulsecount InputA timer/counter may be configured to count the number of in

Chapter 3 - Input/Output Interfaces78 FT 3120 / FT 3150 Smart Transceiver Data BookQuadrature InputA timer/counter may be configured to count transiti

FT 3120 / FT 3150 Smart Transceiver Data Book 79Timer/Counter Input ObjectsA call to this function returns the current value of the quadrature count s

Chapter 3 - Input/Output Interfaces80 FT 3120 / FT 3150 Smart Transceiver Data BookA call to this function returns the current value of the totalcount

FT 3120 / FT 3150 Smart Transceiver Data Book 81Timer/Counter Output ObjectsFigure 3.44 Edgedivide Output ObjectFrequency OutputA timer/counter may be

Chapter 3 - Input/Output Interfaces82 FT 3120 / FT 3150 Smart Transceiver Data Bookto drive an audio transducer, or to drive a frequency to voltage co

FT 3120 / FT 3150 Smart Transceiver Data Book 83Timer/Counter Output ObjectsOneshot OutputA timer/counter may be configured to generate a single pulse

FT 3120/FT 3150 Smart Transceiver Data Book 3Product OverviewTable 1.1 FT Smart Transceiver Product OfferingsThe FT Smart Transceivers provide 11 I/O

Chapter 3 - Input/Output Interfaces84 FT 3120 / FT 3150 Smart Transceiver Data BookPulsecount OutputA timer/counter may be configured to generate a se

FT 3120 / FT 3150 Smart Transceiver Data Book 85Timer/Counter Output ObjectsPulsewidth OutputA timer/counter may be configured to generate a pulsewidt

Chapter 3 - Input/Output Interfaces86 FT 3120 / FT 3150 Smart Transceiver Data BookTriac OutputOn the FT Smart Transceiver, a timer/counter may be con

FT 3120 / FT 3150 Smart Transceiver Data Book 87Timer/Counter Output ObjectsThe hardware update does not happen until the occurrence of an external ac

Chapter 3 - Input/Output Interfaces88 FT 3120 / FT 3150 Smart Transceiver Data BookFigure 3.50 Triggered Count Output Latency ValuesThe active output

FT 3120 / FT 3150 Smart Transceiver Data Book 89NotesThe gradient behavior of the timing numbers for different FT Smart Transceiver pins for some of t

Chapter 3 - Input/Output Interfaces90 FT 3120 / FT 3150 Smart Transceiver Data BookTable 3.7 Timer/Counter Square Wave OutputThis table is for 10MHz i

FT 3120 / FT 3150 Smart Transceiver Data Book 914Hardware Design Considerations

Chapter 4 - Hardware Design Considerations92 FT 3120 / FT 3150 Smart Transceiver Data BookIntroductionThis chapter covers the hardware design consider

FT 3120 / FT 3150 Smart Transceiver Data Book 93Interface between Smart Transceivers and the NetworkThe T1 and T2 signals are each brought out of the