Rimage RFID1 13.56 MHz RFID Transceiver User Manual statement
Rimage Corporation 13.56 MHz RFID Transceiver statement
Rimage >
manual
| Download: |  |
| Mirror Download [FCC.gov] | |
| Document ID | 303849 |
| Application ID | ZbjftiSMp2OwTYyczKqTpw== |
| Document Description | manual |
| Short Term Confidential | No |
| Permanent Confidential | No |
| Supercede | No |
| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 51.19kB (639930 bits) |
| Date Submitted | 2003-02-19 00:00:00 |
| Date Available | 2003-02-19 00:00:00 |
| Creation Date | 2003-02-17 16:41:41 |
| Producing Software | Acrobat PDFWriter 4.05 for Windows |
| Document Lastmod | 2003-02-17 16:44:27 |
| Document Title | statement.PDF |
| Document Creator | Microsoft Word |
| Document Author: | jmurphy |
FCC ID: QT5-RFID1 1. Instruction Manual The RFID1 is designed for use by Original Equipment Manufacturers (OEM) for inclusion into their products. There are no end user instructions necessary for use or maintenance. See the following pages for the integration and usage instructions. OFFICE CORRESPONDENCE 7725 Washington Ave. South; Minneapolis, Minnesota 55349 USA Phone: (952) 944-8144 Fax: (952) 944-7808 OEM Integration Instructions for Rimage P/N 626371-001, FCC ID: QT5-RFID1 1. General The RFID1 device is used by Original Equipment Manufacturers (OEM) to integrate close range (2-inch or less) ISO 15693 transponder communications into a product. There are no usage, calibration, or maintenance instructions necessary for the end user. There are no calibrations necessary for the OEM. There are no special accessories required for either the OEM or end user. 2. Identification Nameplate Requirements The following information must be included as part of the permanent and end user visible equipment identification nameplate. These markings may only be applied after the OEM has tested to ensure compliance with the relevant national standards. This device contains a radio transmitter FCC ID: QT5-RFID1; IC: 4496A-RFID1. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. 3. Compliance Statement Requirements for User Documentation. The following information must be included in the end user documentation provided by the OEM. Notice for the USA This device contains a radio transmitter FCC ID: QT5-RFID1. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any unauthorized modification to this equipment may result in the revocation by the FCC of the user’s authority to operate this equipment. Notice for Canada This product contains a radio transmitter IC: 4496A-RFID1 in conformance with RSS-210: Issue 5: 2001. The term “IC” before the radio certification number only signifies that Industry Canada Technical specifications were met. Notice for Europe This product contains a radio transmitter (RFID1) in conformity with R&TTE directive 1999/5/EC through compliance with the following European Standards: EN 300 330-2 v1.1.1: 2001; EN 301 489-3:2002 Class B Limit. 4. Transceiver Control The RFID1 is based on the Texas Instruments RI-R6C-001A transceiver integrated circuit (IC). Control of this IC is specified in Texas Instruments document 11-07-21-001+S6700+Reference+Guide+V3.pdf. Rimage has developed controlling firmware and will work with the OEM to integrate that control into their product. The Rimage firmware sets up the IC and manages data communications between the IC and the transponder. File: RFID1 OEM.doc, 06-Feb-03 Phil Salisbury CONFIDENTIAL, not to be released without written authorization from Rimage Corporation. Page 1 of 1 June ’02 Appendix C. Register Definition HF Reader System Series 6000 S6700 Multi Protocol Transceiver IC RI-R6C-001A Reference Guide 11-07-21-001 June 2002 A TEXAS INSTRUMENTS TECHNOLOGY S6700 Multi-Protocol Transceiver IC - Reference Guide June ’02 Edition Three - June 2002 This is the third edition of this manual. It describes the following product: S6700 Multi Protocol Transceiver IC RI-R6C-001A-02 Texas Instruments (TI) reserves the right to make changes to its products or services or to discontinue any product or service at any time without notice. TI provides customer assistance in various technical areas, but does not have full access to data concerning the use and applications of customer's products. Therefore, TI assumes no liability and is not responsible for customer applications or product or software design or performance relating to systems or applications incorporating TI products. In addition, TI assumes no liability and is not responsible for infringement of patents and/or any other intellectual or industrial property rights of third parties, which may result from assistance provided by TI. TI products are not designed, intended, authorized or warranted to be suitable for life support applications or any other life critical applications which could involve potential risk of death, personal injury or severe property or environmental damage. The TIRIS and TI-RFID logos, the words TIRIS, TI-RFID and Tag-it are trademarks or registered trademarks of Texas Instruments Incorporated. Copyright 2002 Texas Instruments Incorporated (TI) This document may be downloaded onto a computer, stored and duplicated as necessary to support the use of the related TI products. Any other type of duplication, circulation or storage on data carriers in any manner not authorised by TI represents a violation of the applicable copyright laws and shall be prosecuted. June ‘02 Preface About This Manual This reference guide for the S6700 Multi Protocol Transceiver IC is designed for use by TI partners who are engineers experienced with Radio Frequency Identification Devices (RFID). Regulatory, safety and warranty notices that must be followed are given in Chapter 5. Conventions WARNING: WARNING IS USED WHERE CARE MUST BE TAKEN, OR A CERTAIN PROCEDURE MUST BE FOLLOWED IN ORDER TO PREVENT INJURY OR HARM TO YOUR HEALTH. CAUTION: This indicates information on conditions which must be met, or a procedure which must be followed, which if not heeded could cause permanent damage to the equipment or software. Note: Indicates conditions which must be met, or procedures which must be followed, to ensure proper functioning of the equipment or software. Information: Indicates information which makes usage of the equipment or software easier If You Need Assistance For more information, please contact the sales office or distributor nearest you. This contact information can be found on our web site at: http://www.ti-rfid.com S6700 Multi-Protocol Transceiver IC - Reference Guide June ’02 Document Overview Chapter 1: Page Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.1 General .................................................................................................................... 7 1.2 System Description .................................................................................................. 7 1.3 Product Description .................................................................................................. 7 1.4 Communications Protocols....................................................................................... 7 1.5 Delivery .................................................................................................................... 8 Chapter 2: Transceiver IC Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.1 Functional Description............................................................................................ 10 2.2 Pin Description ....................................................................................................... 12 Chapter 3: Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 3.1 Specification Summary........................................................................................... 14 3.2 Mechanical Information .......................................................................................... 17 Chapter 4: Protocol Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4.1 General Remarks and Basic Command Structure ................................................. 20 4.2 Operating Modes.................................................................................................... 23 4.3 RF Protocol ............................................................................................................ 25 4.4 Register Configuration............................................................................................ 26 4.5 Communication ...................................................................................................... 27 4.6 Power Management ............................................................................................... 31 4.7 Pin M_ERR ............................................................................................................ 31 Chapter 5: Regulatory, Safety and Warranty Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 5.1 Regulatory Notes ................................................................................................... 33 Appendix A: Application Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Appendix B: Command Byte Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Appendix C: Register Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Appendix D: Terms & Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 June ‘02 Preface List of Figures Page Figure 1: S6700 Multi Protocol Transceiver IC (RI-R6C-001A).......................................... 7 Figure 2: Tape Dimensions ................................................................................................ 8 Figure 3: Reel Dimensions ................................................................................................. 8 Figure 4: Simplified Block Diagram .................................................................................. 10 Figure 5: Transceiver Pins................................................................................................ 12 Figure 6: Transceiver IC Sending Data ............................................................................ 16 Figure 7: Mechanical Construction ................................................................................... 17 Figure 8: Command Structure .......................................................................................... 20 Figure 9: Definitions.......................................................................................................... 21 Figure 10: Shut Down Command ..................................................................................... 22 Figure 11: Normal Mode................................................................................................... 23 Figure 12: Register Mode ................................................................................................. 24 Figure 13: Direct Mode ..................................................................................................... 25 Figure 14: Write Configuration Register ........................................................................... 26 Figure 15: Read from Configuration Register................................................................... 26 Figure 16: FIFO Management .......................................................................................... 27 Figure 17: Basic Request/Response ................................................................................ 28 Figure 18: Bi-directional SCLOCK.................................................................................... 29 Figure 19: Simultaneous Identification (SID) / Anti-collision............................................. 30 Figure 20: Application Circuit............................................................................................ 34 List of Tables Page Table 1: List of Connectors............................................................................................... 12 Table 2: General Parameters ........................................................................................... 14 Table 3: Specifications ..................................................................................................... 14 Table 4: Meaning of Symbols in Figure 7 ......................................................................... 18 Table 5: Command Byte Definition................................................................................... 21 Table 6: Meaning of Bits 4, 5 & 6 ..................................................................................... 21 Table 7: Configuration Commands................................................................................... 22 Table 8: Overview of #Bits present in FIFO...................................................................... 27 Table 9: Parts List for Application Circuit.......................................................................... 34 Table 10: Modulation Resistor Values.............................................................................. 35 CHAPTER 1 Introduction Chapter 1:Introduction This chapter introduces you to the S6700 Multi Protocol Transceiver IC. Topic Page 1.1 General........................................................................................................7 1.2 System Description....................................................................................7 1.3 Product Description...................................................................................7 1.4 Communications Protocols ......................................................................7 1.5 Delivery .......................................................................................................8 June ’02 1.1 Chapter 1. Introduction General This document provides information about the S6700 Multi Protocol Transceiver IC. It describes the integrated circuit and how to implement it. 1.2 System Description The HF Reader System Series 6000 works at a frequency of 13.56 MHz. It comprises a reader, antenna and transponder (for example: smart label) and is used for wireless identification. The system works according the “reader talks first” principle which means that the transponder keeps quiet until the reader sends a request to it. The reader can rapidly and simultaneously identify numerous transponders in the antenna’s field. It can write data to and read data from the transponders; either in addressed mode by using the factory programmed read only number, or in general mode to all of the transponders in its field. The read/write capability of the transponder allows users to update the data stored in the transponders memory anywhere along its movements. 1.3 Product Description The S6700 Multi Protocol Transceiver IC opens a rapid path for the development of a broad range of 13.56 MHz RFID readers. It provides the receive/transmit functions required to communicate with a variety of transponders that operate in the 13.56 MHz ISM band. A transmit encoder converts the transmitted data stream into the selected protocol; protocol selection is done in the header of the transmitted data string. The transmitter can provide up to 200 mW of RF power to a matched 50 Ω load with a 5 V power supply. Higher output power can be obtained by an external amplifier. The receive decoder converts the signals from the RF receiver into a simple data string. The digital interface provides on-chip data encoding and recovery, thereby minimizing the software design efforts for the end user. Communication with the circuit is achieved by means of a three wire serial link. Figure 1: S6700 Multi Protocol Transceiver IC (RI-R6C-001A) 1.4 Communications Protocols The Transceiver IC can handle different RF protocols as follows: 1. Tag-it protocol. 2. ISO / IEC 15693-2 [2]. 3. ISO / IEC 14443-2 (Type A). 4. Direct mode where data can be passed directly thru to a transponder; using the correct modulation, timing, and command structure. S6700 Multi-Protocol Transceiver IC - Reference Guide 1.5 June ’02 Delivery The Transceiver IC is available in an SSOP20 plastic package and will be delivered in quantities of 1500 units packed tape-on-reel. The dimensions for the carrier tape and reel are shown on Figure 2 and Figure 3. Figure 2: Tape Dimensions A0 = 8.2 K1 = 2.3 K0 = 3.0 B0 = 7.6 Notes: 1) 2) 3) 4) 5) 10 sprocket hole pitch cumulative tolerance ± 0.2 mm. Camber not to exceed 1 mm in 100 mm. Material: Black Conductive Polystyrene. Ao and Bo measured on a plane 0.3 mm above the bottom of the pocket. Ko measured from a plane on the inside bottom of the pocket to the top surface of the carrier. 6) Pocket position relative to sprocket hole measured as true position of pocket, not pocket hole. Figure 3: Reel Dimensions 330.0 mm 102.0 mm 13.0 mm 10.1 mm 2.0 mm W1 16.8 mm W2 22.2 mm CHAPTER 2 Transceiver IC Description Chapter 2:Transceiver IC Description This chapter describes the hardware of the S6700 Transceiver IC. It describes the transceiver’s functionality and its interfaces. Topic 2.1 Page Functional Description ............................................................................10 2.1.1 Power Supply .......................................................................................10 2.1.2 Transmitter ...........................................................................................10 2.1.3 Receiver ...............................................................................................11 2.1.4 Reference Clock and Internal Oscillator...............................................11 2.1.5 Reset Defaults and Power Management .............................................11 2.1.6 Serial communication interface ............................................................11 2.2 Pin Description.........................................................................................12 S6700 Multi-Protocol Transceiver IC - Reference Guide 2.1 June ’02 Functional Description A simplified block diagram of the Transceiver IC is shown in Figure 4, the different electronic parts of the IC are described in sections 2.1.1 to 2.1.6. Figure 4: Simplified Block Diagram Rectifier RX input 423/484/848 kHz Modulation dept / out Return loss better 20dB Lowpass Filter Linear PA Receive Decoder M_ERR Mode Register Oscillator 13.56MHz Dout Transmitt Decoder Vcc Din SCLOCK Gnd 2.1.1 Power Supply The Transceiver IC requires a nominal 5 volts external power supply. Operation is guaranteed between 3 Volts and 5.5 Volts. The current drain depends on the antenna impedance and the output matching network configuration. We strongly recommended that you use a well regulated supply as power supply ripple and noise will severely degrade the overall system performance. 2.1.2 Transmitter The output transistor is a low Ron MOSFET. The drain is directly accessible on the TX_OUT pin. A recommended application schematic optimized to drive a resistive fifty ohms antenna with a five volts power supply is shown in Appendix A. A simple resonant circuit or/and a simple matching network can be connected to the output to reduce harmonic suppression and enhance the general performance. 100% modulation is achieved by means of gating the square wave drive of the output transistor. 10 June ’02 Chapter 2. Transceiver IC Description The ten percent modulation depth is obtained by means of switching a resistor in series with the output transistor source connection. Increasing the value of this resistor further increases the modulation depth. The transmit encoder converts the data into the selected RF Protocol to be transferred. The communications speed varies from 5 to 120 kbaud and must be at least the speed of the selected transponder protocol. An input buffer is implemented in order to have a sufficient number of bits available for the RF transmission. 2.1.3 Receiver The receiver input is typically connected to the antenna through an external resistor. The modulation from the tag is then recovered by means of a diode envelope detector. The receiver decoder issues the received data directly to the controller in binary data format. The communication speed and RF protocol is defined by the selected mode. Start, stop and errors in the received data string are detected and indicated at the output. 2.1.4 Reference Clock and Internal Oscillator The reference clock can be obtained externally by applying a suitable clock signal to the XTAL2 pin. A sine wave centered at VCC/2 or a CMOS logic compatible signal is an acceptable external system clock. The built-in reference oscillator will work either with a quartz crystal or a ceramic resonator. The nominal system clock frequency is 13.56 MHz, but the oscillator will work at any frequency from 4 MHz to 16 MHz. A buffered version of the crystal oscillator signal is available for synchronization purposes on pin 8 (XTAL_CLOCK). 2.1.5 Reset Defaults and Power Management After a power on reset has been performed, the device is placed in its default configuration. There are three available power modes. In the first mode, the device is fully powered. In the idle mode, only the reference oscillator and a minimal set of associated circuitry are running. In the power down mode, the device internal bias system is completely switched off. The circuit is woken by applying a rising edge on the DIN line while SCLOCK is held high. 2.1.6 Serial communication interface The communication interface normally uses three wires: SCLOCK, serial clock, bi-directional. DIN, data input, as seen by the circuit DOUT, data output, as seen by the circuit The commands are sent with the most significant bit (MSB) in the first position. All signals are internally synchronized with the system clock. The bit protocol is fully described in Chapter 4. 11 S6700 Multi-Protocol Transceiver IC - Reference Guide 2.2 June ’02 Pin Description Figure 5 shows the Transceiver IC and the signals on each pin. They are further described in Table 1. Figure 5: Transceiver Pins 1 VDD_TX RX_IN 20 2 TX_OUT VSS_RX 19 3 R_MOD 18 4 VSS_TX VDD_RX 17 5 XTAL1 16 6 XTAL2 SCLOCK 15 M_ERR 14 7 VSS_DIG DIN 13 8 XTAL_CLK VDD_DIG 12 DOUT 11 10 Table 1: List of Connectors Pin number Signal Name VDD_TX Transmitter power supply TX_OUT Output transistor drain connection R_MOD External resistor to set 10% modulation depth mode VSS_TX Transmitter section ground XTAL1 Pin 1 of Xtal resonator XTAL2 Pin 2 of Xtal resonator and external system clock input VSS_DIG XTAL_CLK Buffered output of Xtal oscillator not used Grounded for normal operation 10 not used Grounded for normal operation 11 DOUT 12 VDD_DIG 13 DIN 14 M_ERR 15 SCLOCK Serial link clock 16 not used Leave open for normal operation 17 VDD_RX Receiver section power supply 18 not used Leave open for normal operation 19 VSS_RX Receiver section ground 20 RX_IN Description Digital section ground Data output for serial link Digital section power supply Data input for serial link Manchester Protocol error flag Receiver input 12 CHAPTER 3 Technical Data Chapter 3:Technical Data This chapter provides the technical specifications of the S6700 Transceiver IC. It also provides information about packing and storage. Topic Page 3.1 Specification Summary ...........................................................................14 3.2 Mechanical Information ...........................................................................17 13 S6700 Multi-Protocol Transceiver IC - Reference Guide 3.1 June ’02 Specification Summary These specifications apply under the following environmental conditions unless otherwise stated: Ambient temperature = -40 ºC to +85 ºC, Input voltage = 5 Volts, The on-board resonator was used. Table 2: General Parameters Parameter Condition Min Interface Serial Interface, CMOS compatible Package SSOP20 Lead frame material CDA C19400 Lead finish material Solder Plate 85/15 Sn/Pb Typ Max Unit Operating temperature -40 +85 ºC Storage temperature -55 +125 ºC 500 mW Power dissipation ESD protection MIL-STD-883, Method 3015 (2kV, 1.5 kΩ, 100 pF) Table 3: Specifications Parameter Condition Min Typ Max Unit 5.5 Volt 40 mVpp General DC Parameters: Supply voltage (Vdd) Vdd with respect to Vss Supply ripple See note 3 Stand-by current consumption (Istb) Vdd=5.5 V 50 µA Idle mode current consumption (Idle1) (Analog section off) External clock Vdd=5.5 V 12 15 mA Idle mode current consumption (Idle2) (Analog section off) On board resonator Vdd=5.5 V 11 mA 14 19 mA 80 100 120 mA Operating current (Iop) Transmit current (Itr) See note 1 Transmitter specifications: Max peak voltage applied on drain of output transistor 32 Max output transistor power dissipation 500 mW Output transistor ON resistance Id = 50 mA Ohm Output power for five volts operation See note 1 180 200 mW Amplitude modulation depth adjustment range in 10% mode, with external resistor connected between R_MOD pin and ground. See note 1 0% 90% 14 June ’02 Chapter 3. Technical Data Table 3: Specifications Parameter Condition Min Typ Max Unit Amplitude modulation depth in 10% mode with 12 Ohm external resistor See note 1 10% 12% 16% Minimum depth for 100% ASK See note 1 40 dB Rise and fall time for 100% ASK See note 1 2.5 µs Rise and fall time for 10% modulation depth (nominal external resistor used) See note 1 1.5 µs Input RF voltage range (RX_IN - VSS) With 1 k series external resistor 1.8 - 4.9 Vdd Volt Receiver sensitivity (FSK) See note 1 -40 -65 dBm Baseband receiver sensitivity (FSK) See note 1 -40 -65 dBm 130 2001400 1800 kHz 100 120 140 dB Limiting gain 70 80 dB Sensitivity for AM recovery -40 -55 dBm Sensitivity for FM recovery -40 -65 dBm 0.2 0.4 Volt 4.6 4.8 Volt mA 0.7 Vdd Vdd + 0.3 -0.3 0.3 Vdd 1.5 MHz Receiver specifications: FSK IF filter cut off points Total gain, in FSK mode Log amplifier section: Serial Link and digital I/O: Output voltage low (Vol) lmax=1mA Output voltage high (Voh) Output current drive (Iol) Vol ≤ 0.4 Volt Input voltage high (Vih) Input voltage low (Vil) SCLOCK frequency See note 4 SCLOCK and DATA set up time See Figure 6 300 ns Xtal Oscillator: Frequency range (Fxtal) 13.56 16 MHz Start-up time (Tstart) ms 50 100 Ohm Vdd Volt pp Vdd Volt pp Xtal series resistance External clock signal specifications: See note 2 Min sine wave amplitude AC coupled Min sine wave amplitude, DC coupled Input has to be centered around Vdd/2 15 S6700 Multi-Protocol Transceiver IC - Reference Guide June ’02 Table 3: Specifications Parameter Condition Min Typ Max Unit XTAL_CLK output specifications: XTAL_CLK Low Level (Col) 1K load resistor 0.2 0.4 Volt XTAL_CLK High Level (Coh) 1K load resistor 4.6 4.8 5.0 Volt Rise and fall times (10%-90%) 1K load resistor// 12pF ns Notes: 1) This parameter is specified with the IC wired as shown in the typical application circuit shown in Appendix A, with the transmitter switched on. 2) The external clock symmetry is of paramount importance. It has a direct influence on the transmitter output power. When using a sine wave as an external clock input, it must not show visible distortion. If a square wave is used, its duty cycle has to be equal to 50%. In all cases, the resulting duty cycle should be checked on the XTAL_CLK pin when it is configured as an output. 3) The maximum ripple current could result in a 10% reduction of the reading distance. 4) The minimum frequency must be high enough that the Transceiver IC always has data available to send. Figure 6: Transceiver IC Sending Data Sclock DOUT T1: typical 300ns T1 16 June ’02 3.2 Chapter 3. Technical Data Mechanical Information Figure 7: Mechanical Construction See Table 4 on next page for details of the symbols in Figure 7. 17 S6700 Multi-Protocol Transceiver IC - Reference Guide June ’02 Table 4: Meaning of Symbols in Figure 7 Symbol Min. Nom. Max. See Note 1.73 1.86 1.99 A1 0.05 0.13 0.21 A2 1.68 1.73 1.78 0.25 0.38 8,10 b1 0.25 0.30 0.33 10 0.09 0.20 10 c1 0.09 0.15 0.16 10 7.07 7.20 7.33 5.20 5.30 5.38 7.65 7.80 7.90 0.63 0.75 0.95 0.65BSC L1 1.25 Ref. 20 α 0° 4° 0.09 0.15 8° Notes: 1) This package outline drawing complies with JEDEC Specification No. MO-150. 2) Dimensions and Tolerances per ANSI.Y14.5M-1982. 3) "T" is a reference datum. 4) "D" & "E" are reference datums and do not include mold flash or protrusions, but do include mold mismatch and are measured at the parting line. Mold flash or protrusions shall not exceed 0.15 mm per side. 5) Dimension is the length of terminal for soldering to a substrate. 6) Terminal positions are shown for reference only. 7) Formed leads shall be planar with respect to one another within 0.08 mm at seating plane. 8) Dimension b does not include dambar protrusion/intrusion. Allowable dambar protrusion shall be 0.13 mm total in excess of b dimension at maximum material condition. Dambar intrusion shall not reduce dimension b by more than 0.07 mm at least material condition. 9) Controlling dimension: millimeters. 10) These dimensions apply to the flat section of the lead between 0.10 mm and 0.25 mm from lead tips. 18 CHAPTER 4 Protocol Definition Chapter 4:Protocol Definition This chapter provides information about the communication protocol used by the S6700 Transceiver IC. Topic 4.1 Page General Remarks and Basic Command Structure ................................20 4.1.1 Definition of Start (S1), Stop (ES1) and Data bit..................................20 4.1.2 Command byte definition .....................................................................21 4.1.3 Transmitter Off Command....................................................................22 4.1.4 Transmitter On command ....................................................................22 4.2 Operating Modes......................................................................................23 4.2.1 Common Points (Normal and Register Mode) .....................................23 4.2.2 Normal Mode........................................................................................23 4.2.3 Register Mode......................................................................................24 4.3 RF Protocol...............................................................................................25 4.3.1 General ................................................................................................25 4.3.2 Direct Mode..........................................................................................25 4.4 Register Configuration ............................................................................26 4.4.1 Write Data to Configuration Register ...................................................26 4.4.2 Read Data from Configuration Register ...............................................26 4.5 Communication ........................................................................................27 4.5.1 FIFO Management ...............................................................................27 4.5.2 Basic Request/Response.....................................................................28 4.5.2.1 Definition TRAN1........................................................................ 28 4.5.2.2 Definition TRAN2:....................................................................... 28 4.5.3 Bi-directional SCLOCK.........................................................................29 4.5.4 Simultaneous Identification (SID) / Anti-collision..................................30 4.6 Power Management .................................................................................31 4.6.1 Idle Mode .............................................................................................31 4.6.2 Power Down Mode...............................................................................31 4.7 Pin M_ERR ................................................................................................31 19 S6700 Multi-Protocol Transceiver IC - Reference Guide 4.1 June ’02 General Remarks and Basic Command Structure The protocol uses a simple three wire serial link between the Transceiver IC and a remote controller (microprocessor) to transmit data and set up data. All signals travelling on this interface must be resynchronised and debounced. It is important to allow a 70 ns debounce time before looking for any signal change. For example, if SCLOCK rises 70 ns before DIN the Transceiver IC serial interface may see them as rising together. For each communication, the remote controller must send a command to perform an appropriate sequence. A typical command is structured as follows: (S1, eight bits command, data, ES1). More actions may follow a specific command but sending S1 will in general initiate a new sequence. A sequence is defined as being all signals between the first S1 (that belongs to the sequence) and the next S1 (that belongs to the next sequence). Size/length S1 Start 1 Bit Command Command byte 8 Bits Bin. Data Binary data X Bits ES1 Stop 1 Bit depending on message Figure 8: Command Structure Start Command S1 CMD bit 7 bit 0 Bin. Data Stop B-Data ES1 Note: You should switch the transmitter on (as described in section 4.1.4) before you send the first command, otherwise it could happen that the first command is not correctly performed. 4.1.1 Definition of Start (S1), Stop (ES1) and Data bit Start, stop, and data are indicated by the sequences: Start (S1) is defined as the start of the communication sequence between the Transceiver IC and the micro-controller. It is a low-to-high transition on the DIN line while SCLOCK is held high. Stop (ES1) is defined as the end of the communication sequence and is a high-to-low transition on the DIN line while SCLOCK is held high. Each data bit is latched by the rising edge of SCLOCK. The value of the data bit must be settled and has to remain the same while SCLOCK is high. The data on DIN can be changed while SCLOCK is low. 20 June ’02 Chapter 4. Protocol Definition Figure 9: Definitions Definitions Symbolic S1= Start Bit = 1 Bit = 0 ES1 = Stop Minimum timings T1: 300 ns T2: 300 ns T3: 66 ns Sclock Din T1 4.1.2 T2 T3 T4 T5 T4: 600 ns T5: 300 ns T6: 300 ns T6 Command byte definition The command byte is defined in Table 5. Table 5: Command Byte Definition Bit no Description Function in High Level Function in Low Level Mode bit 1 = Register Mode 0 = Normal Mode Table 6 Table 6 Table 6 Modulation Depth 1 = 100% 0 = 10% AM / FSK 1 = AM selected 0 = FSK selected Baud rate 1 = High Baud rate 0 = Low Baud rate According to ISO 15693 according to ISO 15693 Parity of first byte Mode is selected according to Table 6 ISO 15693 (1out of 4) is the default register setting Even parity Table 6: Meaning of Bits 4, 5 & 6 Bit # 6 Bit # 5 Bit # 4 Definition Direct Mode Tag-it protocol ISO 15693 / down link 1 out of 4 ISO 15693 / down link 1 out of 256 ISO 14443 Mode A Reserved Reserved Configuration commands Table 7 The configuration commands are used to communicate with the Transceiver IC according to Table 7 below. 21 S6700 Multi-Protocol Transceiver IC - Reference Guide June ’02 Table 7: Configuration Commands Bit # 7 Bit # 6 Bit # 5 Bit # 4 Bit # 3 Bit # 2 Bit # 1 Bit # 0 Definition Read from Configuration Register Write to Configuration Register Power down Note: An overview of supported Command Bytes is given in Appendix B. 4.1.3 Transmitter Off Command Figure 10 shows a special and fast command to shut down the carrier. This can be constructed with an S1 sequence followed by an ES1 sequence. Therefore, this has been written 'S1' and 'ES1' in the symbolic representation. The transmitter is kept 'ON' after a RF command was initiated. To switch the transmitter OFF the following sequence is used: A transition of SCLOCK from low -to-high. A low -to-high transition followed by a high-to-low transition on the Din line while SCLOCK is held high the whole time. A transition of SCLOCK from high to low. Figure 10: Shut Down Command TX OFF Symbolic 'S1' 'ES1' Sclock Din Dout The width of the pulse of Din must be at least 1.2 µs in order to secure the system, and avoid any confusion between a TXOFF command and an S1 command, in case any spurious spike(s) are present on the serial link. It is not necessary to switch off the transmitter before sending another command and data stream to the Transceiver IC. 4.1.4 Transmitter On command The transmitter can be switched on with each of the RF commands in Table 5 except for the configuration commands. The fastest command to switch the transmitter on is a register mode command without data, using the sequence: S1, 1, ES1. 22 June ’02 4.2 Chapter 4. Protocol Definition Operating Modes There are two operating modes available: normal mode and register mode. 4.2.1 Common Points (Normal and Register Mode) Following the S1 bit and the command (either normal or register mode), the rest of the sequence is the same. The number of data bits is arbitrary. The controller sends ES1 when all data bits have been sent. It is the responsibility of the controller to check that the number of data bits is consistent. For example, sending 7 data bits in mode 1out 256 is not consistent. The controller will have no feedback on this error, wrong data or no data at all could be sent. The various CRC sent by the TAG should allow the controller to understand its mistake and, if necessary, to reinitiate a sequence. The first bit ES1 will probably not finish the sequence since an answer from the TAG will probably be expected. This is explained in figures 12, 14 and 15. Note that S1 starts the sequence but does not physically modulate the carrier with a SOF. The SOF will be generated by the Transceiver IC itself before sending data. This SOF may depend on the mode. It may only be sent after several data bits have been received by the Transceiver IC. For example, the SOF may be modulated only when 8 bits have been received in the mode 1 out 256. This behaviour is similar in the mode 1 out of 4. 4.2.2 Normal Mode Figure 11 represents the “Normal Mode”. The user sends some configuration inside the command (definition see Table 5) and starts sending data that will be transmitted by the way of modulating the carrier. SOF, data, EOF will be sent to the TAG. There is no timing correlation between the data in the serial interface and the timing of the data transmitted to the TAG. This is the reason why a buffer (FIFO) has been implemented in the Transceiver IC. The signals related to the FIFO will be described in FIFO management section 4.5.2. Figure 11: Normal Mode Normal Mode Symbolic S1 command= normal mode b7 data= to be sent to TAG ES1 b0 Sclock Din Dout FIFO management is not shown here Example: The data stream to address the Tag-it RF protocol is defined by the following sequence: Size/length Start (S1) 1 Bit Command byte Bit #7 = L, Normal Mode Bit #6 = L, Tag-it protocol Bit #5 = L, “ 23 S6700 Multi-Protocol Transceiver IC - Reference Guide Bit #4 = H, “ Bit #3 = H, 100% modulation Bit #2 = L, FM demodulator Bit #1 = H, this field is not applicable, it is set to default Bit #0 = H, even parity Binary data are converted into the Tag-it RF-protocol 1 Bit Data to the tag: Stop (ES1) 4.2.3 June ’02 Register Mode Figure 12 represents the “Register Mode” command. This command is only one bit long and not 8 bits long like all other commands. In “Register Mode”, the configuration used is the one that has been previously programmed in the Transceiver IC. This configuration should be written using “Write to Configuration Register” (Figure 14) during a previous communication with the Transceiver IC. The Configuration Register definition is shown in Appendix C. Figure 12: Register Mode Register mode Symbolic S1 cmd b7 data= to be sent to TAG ES1 Sclock Din Dout FIFO management is not shown here Example: The data stream to address the RF protocol as defined in the registers is given by the following sequence: Start (S1) Command byte Data to the tag: Stop (ES1): 24 Size/length 1 Bit Bit #7 = if High the mode is set according to the register settings. Arbitrary length binary data stream. The bits are encoded according to the protocol format defined in the RF protocol registers 1 Bit June ’02 4.3 4.3.1 Chapter 4. Protocol Definition RF Protocol General A description of the RF Protocol according to ISO 15693 and ISO 14443 can be found in the relevant ISO documentation. The Tag-it protocol for Tag-it HF transponders is described in the Tag-it protocol, TI specification 11-04-21-002. Notes: The transmission direction of the binary data depends on the definition of the selected RF Protocol and can be different between the command byte and the binary data (RF Protocol). For example: for ISO 15693 and ISO 14443 you must send the LSB first. The binary data response for the Tag-it protocol and the ISO 15693 protocol contains two additional zeros (0 0) in the end of frame, to indicate the end of transponder transmission. This sequence is decoded as “0 0 ES”. The two zeros must be removed from the data string before any further processing. 4.3.2 Direct Mode In Direct Mode, the controller has to create all modulated signals sent to the TAG since the transmitter input is directly connected to the input line Din. This signal has the exact timing required by the TAG. Figure 13: Direct Mode Direct Mode Symbolic S1 cmd=direct mode ES1 Data = to be sent to TAG TAG data manchester coded TX off S1 new cmd Sclock Din Dout The 'Direct Mode' is entered by S1, command (8 bits), ES1 and the Transceiver IC is then set to “direct Mode”. At this point, no carrier modulation has been applied to the TAG. After SCLOCK rises, DIN can directly control the modulation input, which is then directly connected to the RF modulator. The modulation depth 10% or 100%, the receiver channel settings and the demodulation mode AM/FSK are defined by the command byte. The raw demodulated data (Manchester coded) is available at DOUT and no further processing is performed by the Transceiver IC when operating in this mode. To exit this mode the SCLOCK line changes from high-to-low and the transmitter is switched off. 25 S6700 Multi-Protocol Transceiver IC - Reference Guide 4.4 4.4.1 June ’02 Register Configuration Write Data to Configuration Register The data bits following the command byte are written to the configuration register. Figure 14: Write Configuration Register Write to Configuration Register Symbolic S1 b7 command=Write to Configuration Register b0 data= Configuration data to write ES1 Sclock Din Dout Figure 14 represents the command “Write to Configuration Register” since the 8 bits of command are 01111101. The data stream illustrated in Figure 14 is 8 bits long. This sequence is used to define the active settings when operating in “Register mode” (see sequence “'Register Mode”). The values for Bit 7 “Idle Mode” and bit 0 “Manchester Decoder” are also valid for “Normal Mode”. After the bit ES1, the command “Write to Configuration Register” is finished. A new bit S1 is expected to initiate a new sequence. 4.4.2 Read Data from Configuration Register Read Data from Configuration Register: The data after the command byte are the content of the registers and clocked out by the SCLOCK from the controller. Figure 15: Read from Configuration Register Read from Configuration Register Symbolic S1 command = Read from Configuration Register b7 b0 S1 command = Read from Configuration Register b7 b0 data = Configuration Register data on Dout ES1 Sclock Din Dout Symbolic Sclock Din Dout data = Configuration data ES Read from Configuration Register interupted by RC Figure 15 shows the “Read from Configuration Register” command, which is 01110001. The controller is reading the configuration register of the Transceiver IC. This has nothing to do with the presence of a TAG or not. The controller can consider this operation as reading a RAM via the three wires serial link interface. The controller is allowed to send ES1 before having read all configuration bits if it does not need to know all bits. The order of the configuration bits inside the Transceiver IC is then important in case a specific part of the configuration is read frequently. After the bit ES1, the command “Read from Configuration Register” is finished. A new bit S1 is expected to initiate a new sequence. 26 June ’02 4.5 4.5.1 Chapter 4. Protocol Definition Communication FIFO Management Because the micro controller cannot control the timing of sending data to the TAG the Transceiver IC must store the data from the micro controller. The capacity of storage being limited, management of the buffer must be implemented. The buffer is implemented as a 16 bit FIFO. Figure 16: FIFO Management FIFO Management Symbolic S1 cmd data= to be sent to TAG ES1 Sclock Din Dout Note: As long as DOUT is at level 1 it is not permitted to send a clock signal on the SCLOCK line. The FIFO management is shown in Figure 16. The Transceiver IC indicates that its buffer is full and asks the controller to stop sending data. The Transceiver IC does so by raising DOUT while SCLOCK=0. The controller must wait until DOUT returns to level 0 to send further data. The Transceiver IC indicates that its buffer is almost empty under the following conditions: Table 8: Overview of #Bits present in FIFO # Bits present in FIFO Mode DOUT is rising DOUT is falling Tag-it 16 ISO 15693 1 out of 4 16 ISO 15693 1 out of 256 16 ISO 14443 16 Data is written with the commands “Write ASIC”, “Normal Mode” and “Register Mode”. The FIFO management is not needed for the “Write ASIC” command, since writing in the Transceiver IC is immediate. FIFO management will be used with the “Normal Mode” and “Register Mode” commands. 27 S6700 Multi-Protocol Transceiver IC - Reference Guide 4.5.2 June ’02 Basic Request/Response The SCLOCK line becomes bi-directional. Note: For the sake of clarity we have introduced a new convention: When the Transceiver IC drives the line SCLOCK the start of the sequence is marked S2 and the end ES2. DIN is always input for the Transceiver IC DOUT is always an output for the Transceiver IC SCLOCK is used by the Transceiver IC and the controller Figure 17: Basic Request/Response Basic Request / Response Symbolic S1 cmd data= to be sent to TAG ES1 TRAN1 S2 TAG data ES2 TRAN2 Sclock Din Dout b c S1, cmd//, and ES1 are sent (cmd// = “normal mode” OR “register mode”). A SOF followed by the data and terminated by EOF is transmitted to the TAG by amplitude modulation of the carrier. (Remark: the FIFO management is not shown in figures 13, 15 and 17). In a typical case, the TAG will now send its answer to the request. The ASIC has to control the line SCLOCK since the data rate of the TAG will pace the data flow. 4.5.2.1 Definition TRAN1 During Transient 1 (TRAN1), the controller gives control of the SCLOCK line to the Transceiver IC: DIN =0 Time a: The bit ES1 is finished. Time b: The controller raises DIN, either to prepare a control mode change for the SCLOCK line or to prepare an ES1. Time c: DIN is falling. The controller definitely indicates that it will give the SCLOCK line control to the Transceiver IC. SCLOCK =0 and both the controller and the Transceiver IC are outputs. Time d: DIN rises showing that the controller leaves the control of the bus until DIN falls to ask the control of SCLOCK back. At time d, SCLOCK is still equal to 0 but the pin SCLOCK of the controller is an input and the pin SCLOCK of the Transceiver IC is an output. When the Transceiver IC has control of SCLOCK, it will send a S2 that corresponds to a SOF sent by the TAG, the data (7 bits in Figure 17) and an ES2 that corresponds to the EOF of the TAG. 4.5.2.2 Definition TRAN2: During Transient 2, the controller regains control of SCLOCK: DIN =1 The controller indicates its intention to regain control over SCLOCK by setting DIN=0 and initiate a change by making a pulse on DIN. It is during this pulse that the line SCLOCK will change direction. 28 June ’02 4.5.3 Chapter 4. Protocol Definition Bi-directional SCLOCK Figure 18 shows an extreme case of successive changes of SCLOCK control. This example demonstrates the principle, its purpose is not to show a typical case. Even if this could be done, it is very unlikely that a user would implement such a case. Figure 18: Bi-directional SCLOCK Bi-directional SCLOCK Symboli TRAN1 TRAN2 ES1 TRAN1 data TRAN2 Sclock Din Dout b c h1 h2 A classical TRAN1 is shown at times a, b and c of Figure 18. This is described in section 4.5.2.1. At time d, the controller signals that it wants to take back control of SCLOCK. DIN rises at time e. Between time e and time f, SCLOCK=0 both Transceiver IC and controller are outputs. At time f, only the controller is an output. At time g, the controller raises DIN to prepare an ES1. Between time h1 to h2, a classical TRAN1 is performed. At time h2, the Transceiver IC controls SCLOCK. At time i, the Transceiver IC raises DOUT to be ready to send a data '1' to the controller as SCLOCK is rising. At the same time (before or after), the controller resets DIN showing it wants to take back the bus. The falling of DOUT while SCLOCK=1 is normally an ES2. At time k, the Transceiver IC resets SCLOCK to low. After this a TRAN2 can take place. At time l, both Transceiver IC and controller are outputs. At time m, the Transceiver IC is an input and the controller is an output. 29 S6700 Multi-Protocol Transceiver IC - Reference Guide Simultaneous Identification (SID) / Anti-collision Figure 19: Simultaneous Identification (SID) / Anti-collision Simultaneous Identification (SID) Symbolic S1 data= to be sent to TAG cmd ES1 TRAN1 S2 TAG data ES2 TRAN2 Sclock see below 4.5.4 June ’02 Din Dout Symbolic ES1 TRAN1 S2 b c TAG data TRAN2 S1 new command Sclock Din Dout When you have read section 4.5.3 you (controller software developer) have all the elements to establish a SID with the TAG, this is shown in Figure 19. The sequence S1, cmd//, data, ES1, will send to the TAG a SOF, Data (=SID request), EOF. The last EOF can normally be seen as the marker of the beginning of the first slot. The first TRAN1 allows the Transceiver IC to send the data received from the TAG. The first bit sent is S2 (corresponding to a SOF sent by the TAG), TAG data (7 bits on Figure 19), ES2 (corresponding to the EOF sent by the TAG). A TRAN2 gives back the SCLOCK to the controller. ES1 is then sent to modulate an EOF towards the TAG, delimiting a new slot. The next signals are TRAN1, S2, TAG data (only 4 bits) but at this time, the controller is not interested in continuing to read data. At time f, the controller resets DIN to ask for control of SCLOCK. The Transceiver IC stops the process TRAN2 since SCLOCK='1' by resetting DOUT. As soon as SCLOCK='0', the Transceiver IC acknowledges it is ready to begin a TRAN2 by raising DOUT='1'. A TRAN2 can now take place to give back the control to the controller. Finally, the controller decides to start a new sequence by sending S1, which completes the SID sequence. The two slots shown, as an example, are not typical since 16 slots may be used in normal operation. 30 June ’02 4.6 4.6.1 Chapter 4. Protocol Definition Power Management Idle Mode The Transceiver IC can be switched to Idle mode by configuring Bit 7 of the Configuration Register to 1 with the command “Write to Configuration Register”. In this mode, only the oscillator and the essential digital circuits are enabled. It can be switched out of Idle mode by configuring Bit 7 of the Configuration Register to 0. 4.6.2 Power Down Mode The Transceiver IC can be switched into “Power Down Mode” by sending the Power Down configuration command (01111110) as described in section 4.1.2 and Table 7. In Power Down Mode, the crystal will not be running, some analog circuitry may be shut down, the carrier will be off, the configuration bits remain unchanged. Consequently, the serial link (clocked by the crystal) will not be available. The controller cannot communicate with the Transceiver IC in this mode. To wake the Transceiver IC up, the controller has to send a bit S1 that will trigger some asynchronous circuitry on board of the Transceiver IC. This action will reset (asynchronously) the bit 'Power Down', and will restart the crystal oscillator. After a delay of 10 ms, the serial link will operate again. During a wake up phase, the controller will have to wait until the crystal oscillator has reached its nominal operating conditions again. The controller (after this delay) should initiate a new sequence (S1, cmd, and data, ES1). Note that the bit S1 used to wake up the Transceiver IC is not initiating a sequence. In practice, to write a new sequence to the Transceiver IC when the Transceiver IC is in Power Down Mode, the controller must do: S1, delay (10 ms), S1, cmd, data, ES1 (where cmd can be any command). 4.7 Pin M_ERR The pin M_ERR is an output and has three functions: It will rise during ES1 if the bit #0 (parity) is wrong in the command It will rise as soon as bad data is decoded by the Manchester decoder while receiving data. This tells the controller that the common bits of two Tags answered at the same time within the same slot or the timing offset for synchronizing of the Manchester decoder needs to be adjusted (see Appendix C Timing Register). If the FIFO Buffer is empty and the reader to transponder communication is finished then a 22 µs pulse is generated on the M_ERR pin. 31 CHAPTER 5 Regulatory, Safety and Warranty Notices Chapter 5:Regulatory, Safety and Warranty Notices This chapter provides important information about regulatory constraints and safety precautions. Topic 5.1 Page Regulatory Notes .....................................................................................33 32 June ’02 5.1 Chapter 5. Regulatory, Safety and Warranty Notices Regulatory Notes An RFID system comprises an RF transmission device, and is therefore subject to national and international regulations. Prior to operating the S6700 Transceiver IC as a system together with antenna(s) and power supply, the required FCC, PTT or relevant government agency approval must be obtained. Sale, lease or operation in some countries may be subject to prior approval by the government or other organization. 33 APPENDIX A Application Examples Appendix A:Application Examples An Application Schematic which has been optimized to drive a 50 Ω resistive antenna using a 5 V power supply is shown in Figure 20. Figure 20: Application Circuit ANTENNA L1 L2 COAX R1 C2 C1 C9 VCC L3 C3 C4 C5 R2 XTAL 13.56 MHz C7 VDD_TX RX_IN TX_OUT VSS_RX VDD_RX VSS_DIG XTAL_CLK 10 C6 17 16 XTAL1 XTAL2 19 18 R_MOD VSS_TX 20 SCLOCK M_ERR DIN VDD_DIG DOUT 15 VCC 14 µC 13 12 VCC 11 C8 Table 9: Parts List for Application Circuit Component Value Component Value C1 10nF L1 4.2µH C2 56pF L2 5.6µH C3 10µF Tantalum L3 1.2µH C4 100nF C5 22pF R1 2.2kΩ C6 100nF R2 12Ω C7 22pF C8 100nF C9 47pF 34 June ’02 Appendix A. Application Examples At 5 V, this circuit will output typically 200 mW RF power when a suitable matched 50 Ω antenna is connected. At 3 V the output will be typically 80 mW RF power. Proportionately lower RF outputs will result if you only have a simple resonating circuit. Where the transmitter is intended to be on all the time, it is recommended that the chip pad sizes and tracks are increased to provide a larger area for heat dissipation. Care should be taken with board design to avoid excessive capacitance. When board capacitance is too high, the value of the capacitance associated with the crystal may need reducing to avoid an unstable clock. The suggested circuit shows capacitor values of 22 pF. The Transceiver IC can be switched from 100% to 10% via the software. ISO 15693 specifies that the inlay should perform with modulation depths between 10% and 30% (in addition to 100%) and the required depth can be configured by changing resistor R2 in the suggested circuit. Table 10 shows the resistance values required in to change the depth of modulation. Table 10: Modulation Resistor Values Modulation% Resistor Value Ω) (Ω 10 12 Minimum modulation depth 20 18 Recommended modulation depth 30 25 Maximum modulation depth Comment Note: In order to achieve the highest possible read-out coverage we recommend that you operate the reader at a modulation depth of 20% or higher. 35 APPENDIX B Command Byte Overview Appendix B:Command Byte Overview An overview of the Transceiver IC’s Command Byte is shown on the next page. 36 June ’02 Appendix B. Command Byte Overview Command Byte Operation Mode RF Protocol Modulation Subcarrier Data Rate Parity 0=Normal Mode 0=10% , 1=100% 0=FM (two subcarrier) , 1=AM (one subcarrier) 0=Low Data Rate , 1=High Data Rate set Parity to have EXOR(bit7..0)=0 RF Protocol not applicable Direct Mode Direct Mode not applicable not applicable Direct Mode Direct Mode not applicable Modulation not applicable not applicable not applicable not applicable not applicable Tag-it Protocol not applicable not applicable ISO ISO ISO ISO ISO ISO ISO ISO 15693 (1 out 15693 (1 out 15693 (1 out 15693 (1 out 15693 (1 out 15693 (1 out 15693 (1 out 15693 (1 out ISO ISO ISO ISO ISO ISO ISO ISO 15693 (1 out 15693 (1 out 15693 (1 out 15693 (1 out 15693 (1 out 15693 (1 out 15693 (1 out 15693 (1 out not applicable not applicable not applicable not applicable not applicable not applicable not applicable ISO 14443 (Type A) Read from Configuration Register not applicable not applicable not applicable not applicable Write to Timing Register Write to Configuration Register Power Down Subcarrier Data Rate 10% 10% FM AM ------- 100% 100% FM AM ------- 100% FM High Data Rate (26.69kbit/s) of 4) of 4) of 4) of 4) of 4) of 4) of 4) of 4) 10% 10% 10% 10% 100% 100% 100% 100% FM FM AM AM FM FM AM AM Low Data Rate (6.67kbits/s) High Data Rate (26.69 kbits/s) Low Data Rate (6.62 kbits/s) High Data Rate (26.69 kbits/s) Low Data Rate (6.67kbits/s) High Data Rate (26.69 kbits/s) Low Data Rate (6.62 kbits/s) High Data Rate (26.69 kbits/s) of 256) of 256) of 256) of 256) of 256) of 256) of 256) of 256) 10% 10% 10% 10% 100% 100% 100% 100% FM FM AM AM FM FM AM AM Low Data Rate (6.67kbits/s) High Data Rate (26.69 kbits/s) Low Data Rate (6.62 kbits/s) High Data Rate (26.69 kbits/s) Low Data Rate (6.67kbits/s) High Data Rate (26.69 kbits/s) Low Data Rate (6.62 kbits/s) High Data Rate (26.69 kbits/s) 100% AM High Data Rate (105.94 kbit/s) 37 APPENDIX C Register Definition Appendix C:Register Definition Configuration Register The Configuration Register has 8 bits which are defined as following: On=1 Bit4 Off=0 Bit5 Idle Mode Bit6 Bit RF Protocol Definition Modulation: Two subcarrier (FM)= 0 Data Rate: Manchester decoder: enabled=0 10%=0 Direct Mode Tag-It Mode ISO 15693 / down link 1 out of 4 ISO 15693 / down link 1 out of 256 ISO 14443 Mode A Reserved Reserved Reserved 100%=1 One subcarrier (AM)=1 Low=0 High=1 disabled=1 The default (factory) configuration is: 00100010 38 June ’02 Appendix C. Register Definition Timing Register The timing register is used to set the sampling point of the digital decoder to generate binary data from the Manchester coded data stream (Timing Offset). The time is defined from the end of transmission from the Transceiver IC to the transponder until the beginning of the response from the transponder. D12 D 11 D1 0 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 D efault Timing Timing Timing Timing Timing Timing Timing Reserv ed n eed to be th e D efault value O ffset1 Offs et 2 O ffset3 O ffset4 Offs et 5 Offs et 6 O ffset7 LS B To adjus t the boundary sc an MS B Boundary sc an: 0 = Normal, 1 = Boundary sc an is added on pin M_ERR Certain variations are allowed for this timing offset and depending on the signal strength and signal-to-noise ratio seen at the receiver input a change of the default value may result in better reading results. For test purposes the boundary scan signals can be feed to the pin M-ERR by setting bit D7. Tdelay M_ERR Conditions to set the timing offset: • The first rising edge of the boundary scan must be in front of the start of the tag response. • The first boundary scan pulse can be set by changing the Timing Offset Bits D6..D0. • The weight of one bit shifts Tdelay by 295 ns (4/13.56 MHz). Changing the value of this register is done with the command '0111 1011' followed by a 13-bit data stream. Example: Set Tdelay to 311.31 µs Send command '0111 1011' followed by the 13-bit data stream '1100 0000 1001 0'. 39 S6700 Multi-Protocol Transceiver IC - Reference Guide Symbolic S1 June ’02 command = Timing Setting b7 data= Timing settings to write b0 Sclock Din Dout cont.data= Timing settings to write ES1 Sclock Din Dout The changed setting remains active until the device is disconnected from power. 40 APPENDIX D Terms & Abbreviations Appendix D:Terms & Abbreviations A list of the abbreviations and terms used in various TI-RFID manuals can now be found in a separate manual: TI-RFID Product Manuals - Terms & Abbreviations Document number: 11-03-21-002 41 S6700 Multi-Protocol Transceiver IC - Reference Guide 42 June ’02
Source Exif Data:
File Type : PDF File Type Extension : pdf MIME Type : application/pdf PDF Version : 1.4 Linearized : No Creator : Microsoft Word Create Date : 2003:02:17 16:41:41 Title : statement.PDF Author : jmurphy Producer : Acrobat PDFWriter 4.05 for Windows Modify Date : 2003:02:17 16:44:27-06:00 Page Count : 44EXIF Metadata provided by EXIF.tools