Texas Instruments 2000 series Manuale utente

Series 2000 Reader SystemMicro-reader RI-STU-MRD1

Reference Guide

May 2000

SCBU027

Series 2000 Reader System

Micro-reader RI-STU-MRD1

Reference Guide

Literature Number: SCBU027May 2000

Contents
Preface ............................................................................................................................... 7
1 Product Description ................................................................................................... 91.1 General ............................................................................................................. 101.2 Product Description ............................................................................................... 101.2.1 Power Supply ............................................................................................. 111.2.2 Antenna .................................................................................................... 111.2.3 Synchronization ........................................................................................... 111.2.4 Trigger Mode .............................................................................................. 121.2.5 Continuous Mode ......................................................................................... 121.2.6 Serial Communication ................................................................................... 121.3 Connector Pins .................................................................................................... 131.3.1 Pin Connection Description ............................................................................. 141.3.2 Module and Antenna Block Diagrams ................................................................. 15
2 Communications Protocol ......................................................................................... 172.1 Protocol PC to Micro-reader ..................................................................................... 182.1.1 Start Mark ................................................................................................. 182.1.2 Length...................................................................................................... 182.1.3 Command Field ........................................................................................... 182.1.4 Data Field ................................................................................................. 202.1.5 BCC ........................................................................................................ 202.2 Protocol Micro-reader to PC ..................................................................................... 202.2.1 Start Mark ................................................................................................. 212.2.2 Length...................................................................................................... 212.2.3 Status ...................................................................................................... 212.2.4 Data Field ................................................................................................. 212.2.5 BCC ........................................................................................................ 21
3 Specifications .......................................................................................................... 233.1 Recommended Operating Conditions .......................................................................... 243.2 Timings ............................................................................................................. 243.3 Mechanical Data ................................................................................................... 25
4 Transponder Protocols ............................................................................................. 274.1 Transponder Commands ......................................................................................... 284.1.1 Read RO, R/W ............................................................................................ 284.1.2 Program R/W ............................................................................................. 284.1.3 Addressing MPTs/SAMPTs ............................................................................. 284.2 Transponder Responses ......................................................................................... 304.2.1 Read Only Transponder ................................................................................. 304.2.2 Read/Write Transponder ................................................................................ 304.2.3 MPT/SAMPT .............................................................................................. 31
5 Communication Protocol Examples ............................................................................ 335.1 PC to Micro-reader ................................................................................................ 345.1.1 Read RO, R/W ............................................................................................ 34
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5.1.2 Program R/W Transponder ............................................................................. 345.1.3 General Read Page of MPT ............................................................................ 355.1.4 Program Page of MPT ................................................................................... 355.1.5 Lock Page of MPT ....................................................................................... 365.1.6 Selective Read Page of SAMPT ....................................................................... 365.1.7 Selective Program Page of SAMPT ................................................................... 375.1.8 Selective Lock Page of SAMPT ........................................................................ 385.2 Micro-reader to PC ................................................................................................ 385.2.1 Successful Read of RO .................................................................................. 385.2.2 Successful Program Page 2 of MPT ................................................................... 395.2.3 No Read ................................................................................................... 39

A CE Declaration ......................................................................................................... 41

B Demonstration Circuit ............................................................................................... 43

C Antenna Design ........................................................................................................ 45C.1 Introduction ......................................................................................................... 45C.2 Antenna Construction ............................................................................................. 45C.3 Q Factor ............................................................................................................ 46C.4 Adapting the Inductance Range ................................................................................. 46

4Contents SCBU027 – May 2000Submit Documentation Feedback

List of Figures

1-1 Micro-reader Module ....................................................................................................... 101-2 Micro-reader Pin Connections ............................................................................................ 131-3 Block Diagram of the Micro-reader ...................................................................................... 151-4 Antenna Circuit Block Diagram ........................................................................................... 163-1 Top, Front, and Side Views (Measurements in mm) .................................................................. 254-1 Read Function .............................................................................................................. 284-2 Programming Data Format of the 64-bit Read/Write Transponder .................................................. 284-3 Data Format of the General Read Page Function ..................................................................... 294-4 Programming Data Format of the MPT .................................................................................. 294-5 Lock Page of MPT/SAMPT ............................................................................................... 294-6 Data Format of the Selective Read Page Function .................................................................... 294-7 Data Format of the Selective Program Page Function ................................................................ 304-8 Data Format of the Selective Lock Page Function ..................................................................... 304-9 RO Read Data Format ..................................................................................................... 304-10 R/W Read Data Format ................................................................................................... 304-11 MPT/SAMPT Read Data Format ......................................................................................... 31B-1 Micro-reader Demonstration Circuit ...................................................................................... 43

List of Tables

1-1 Pin Connections ............................................................................................................ 13

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List of Tables6 SCBU027 – May 2000Submit Documentation Feedback

Preface

SCBU027 – May 2000

Edition Three - May 2000This is the third edition of this manual, it describes the following equipment:

TIRIS™ Micro-reader Module RI-STU-MRD1

About This GuideThis manual describes the TIRIS Micro-reader, its goal is to describe the reader, how it works, how tointegrate it and how to use it.

Conventions

WARNINGA WARNING IS USED WHERE CARE MUST BE TAKEN, OR ACERTAIN PROCEDURE MUST BE FOLLOWED IN ORDER TOPREVENT INJURY OR HARM TO YOUR HEALTH.

CAUTION

This indicates information on conditions which must be met, or a procedurewhich must be followed, which if not heeded could cause permanent damage tothe equipment or software.

Note: Indicates conditions which must be met, or procedures which must be followed, to ensureproper functioning of the equipment or software.

Also indicates information that makes use of the equipment or software easier.

If You Need Assistance

Application Centers are located in Europe, North and South America, the Far East and Australia to providedirect support. For more information, please contact your nearest TIRIS Sales and Application Center. Thecontact addresses can be found on our home page: http://www.tiris.com

Trademarks

The TIRIS logo and the word TIRIS are registered trademarks of Texas Instruments.

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8 SCBU027 – May 2000Submit Documentation Feedback

Chapter 1SCBU027 – May 2000

Product Description

This chapter describes the hardware of the Micro-reader. It tells you about the moduleand how to integrate it.

Topic .................................................................................................. Page

1.1 General .................................................................................... 101.2 Product Description .................................................................. 101.3 Connector Pins ......................................................................... 13

SCBU027 – May 2000 Product Description 9Submit Documentation Feedback

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1.1 General

1.2 Product Description

General

The Micro-reader is an intelligent module providing RF and Control functions to read and program TIRIStransponders. It is equipped with a Serial Communications Interface (SCI) which may be directlyconnected to commonly used system controllers. The Micro-reader works together with a 47 µH, low-Qantenna, and therefore the system does not need tuning.

Figure 1-1. Micro-reader Module

The Micro-reader module is a plug-in module which can be plugged into or soldered onto an applicationspecific adapter board. It supports serial data communications between a PC and TIRIS transponders.With its Serial Communications Interface (SCI) the Micro-reader supports TTL data communications,which with the addition of a communications driver (for example: RS232 or RS422) allows communicationto a standard interface.

The Micro-reader can be controlled remotely by either providing certain inputs with the correspondingvoltage level or sending commands to the SCI. It can be driven either with or without synchronization - thesynchronization can be either wireless or wired to enable reliable operation in multi-reader environments.Two outputs show the reader status and inform the user about a successful command execution. TheMicro-reader supports all available TIRIS™ LF transponders.

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