Texas Instruments TIRIS RI-STU-MRD1 Скачать руководство пользователя страница 25

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25 July 1996

Micro-reader Module

6. Communication Protocol Examples

6.1 PC to Micro-reader

Read RO, R/W

Byte

Content (hex) Comment

Description

Start Mark

Length

Two bytes follow excluding BCC

Command Field (1) Perform Single command, send Power Burst I

Data Field (1)

Power Burst I with 50 ms duration (charge-up)

BCC

BCC over previous bytes excluding Start Mark

General Read Page of MPT

The following sequence of bytes reads page 2 of an MPT.

Byte

Content (hex) Comment

Description

Start Mark

Length

Four bytes follow excluding BCC

Command Field (1) Perform Single command, send Power Burst I with data

Data Field (1)

Power Burst I with 50 ms duration (charge-up)

Data Field (2)

One Data Field follows

Data Field (3)

Write Address specifying General Read Page 2

BCC

BCC over previous bytes excluding Start Mark

Program Page of MPT

The following sequence of bytes programs page 2 of an MPT with:

00 00 00 00 00 2D C6 47

MSByte LSByte

Byte

Content (hex) Comment

Description

Start Mark

Length

15 bytes follow excluding BCC

Command Field (1) Perform Single command, calculate FBCC,

send Power Burst I & II with Data

Data Field (1)

Power Burst I with 50 ms duration (charge-up)

Data Field (2)

Power Burst II with 15 ms duration (Progr. burst)

Data Field (3)

11 Data Fields follow

Data Field (4)

Write Address specifying Program Page 2

Data Field (5)

Programming data (LSByte)

Data Field (6)

Programming data

- : -

Data Field (11)

Programming data

Data Field (12)

Programming data (MSByte)

Data Field (13)

DBCC (LSByte)

Data Field (14)

DBCC (MSByte)

BCC

BCC over previous bytes excluding Start Mark

Содержание TIRIS RI-STU-MRD1

Страница 1: ...Texas Instruments Registration and Identification System Micro reader RI STU MRD1 Reference Manual 11 06 21 027 25 July 1996 ...

Страница 2: ...ta concerning the uses and applications of customer s products Therefore TI assumes no responsibility for customer product design or for infringement of patents and or the rights of third parties which may result from assistance provided by TI CE Declaration The Micro reader module complies with the European CE requirements as specified in the EMC Directive 89 336 EEC For details please refer to A...

Страница 3: ...eld 17 3 2 5 BCC 17 4 Specifications 18 4 1 Absolute Maximum Ratings 18 4 2 Recommended Operating Conditions 19 4 3 Timings 19 4 4 Mechanical Data 20 5 Transponder Protocols 21 5 1 Transponder commands 21 5 1 1 Read RO R W 21 5 1 2 Program R W 21 5 1 3 Addressing MPTs SAMPTs 22 5 1 3 1 General Read Page of MPT SAMPT 22 5 1 3 2 Program Page of MPT SAMPT 22 5 1 3 3 Lock Page of MPT SAMPT 22 5 1 3 4 ...

Страница 4: ...rite Transponder 21 Figure 7 Data Format of the General Read Page Function 22 Figure 8 Programming Data Format of the MPT 22 Figure 9 Lock Page Data Format of the MPT SAMPT 22 Figure 10 Data Format of the Selective Read Page Function 23 Figure 11 Data Format of the Selective Program Page Function 23 Figure 12 Data format of the Selective Lock Page function 23 Figure 13 RO Read Data Format 23 Figur...

Страница 5: ... and ordering numbers of TIRIS Products and Accessories please contact your local TIRIS Application Center There is only one version of the Micro reader Module that is RI STU MRD1 1 4 Conventions Certain conventions are used in this document in order to display important information these conventions are WARNING A warning is used where care must be taken or a certain procedure must be followed in ...

Страница 6: ... GND VSL GNDP MICRO CONTROLLER RFM ASIC ANT1 ANT2 ANTCAP Power stage Filter RXCK RXDT TXCT VSL VSP VSL WLSC VSP Figure 1 Block Diagram of the Micro reader ANT1 ANT2 ANTCAP TXHI from ASIC TXLO from ASIC VSP RECEIVE RESONANCE CAPACITOR Figure 2 Antenna Circuit Block Diagram ...

Страница 7: ...here are two separate 5V supplies to the Micro reader one for the output stage VSP and the other for the logic VSL On power up VSL should rise faster than 0 1 V ms to ensure a reliable operation The Micro reader has an on board reset circuit which will reset it should the supply fall below 4 V 0 2 V In order to avoid problems with noise conducted via the supply lines we recommend that if a single ...

Страница 8: ...synchronization switched on as synchronization could be unreliable We recommend the use of bus drivers for wired synchronization with other Micro readers and to prevent ESD damage Wired or wireless synchronization prolongs the cycle time by typically 20 ms 2 1 4 Trigger Mode When the Micro reader is in idle mode it is possible to trigger a single charge only read with a power burst duration of 50 ...

Страница 9: ...with a PC via its serial communications interface for example RS232 or RS422 The communications protocol is specified in Section 3 Handshake The Micro reader accepts handshake commands Xon Xoff When it receives an Xoff 13hex the Micro reader stops its current operation and stops transmitting data via the serial port It stays in idle mode until Xon 11hex is received when it continues with the previ...

Страница 10: ...nect 11 Reserved do not connect 12 Reserved do not connect 13 Reserved do not connect 14 Reserved do not connect 15 GND Ground for logic 16 ANT1 Antenna terminal 1 17 ANTCAP Antenna capacitor terminal 18 Reserved do not connect 19 ANT2 Antenna terminal 2 20 Reserved do not connect 21 GNDP Ground for output stage 22 VSP Supply voltage output stage 23 Reserved do not connect 24 VSL Supply voltage lo...

Страница 11: ...00 µs The single read will start on the falling edge of the 100 µs pulse RESET 4 Taking this pin to GND holds the Micro reader in reset If the reset pin is not used it can be left disconnected as it is internally pulled up Minimum pulse duration to perform a reset is 1 ms RXD 5 Input configured to receive serial data commands at 9600 Baud 1 start bit 8 data bits no parity and 1 stop bit TXD 6 Outp...

Страница 12: ...chronization pin 27 must be taken to VSL When wireless synchronization is enabled the Micro reader will try to synchronize its transmit signals with any other readers in range To disable wireless synchronization pin 27 must be taken to GND Pin 27 is a high impedance input and must be tied to either VSL or GND via a suitable resistor 27 kOhm Wireless synchronization can also be switched on off by a...

Страница 13: ...nal 4 3 Data Field 1 N 3 2 Data Field N N 4 3 BCC Note The total number of bytes sent within a protocol frame including Start Mark and BCC is limited to 41 bytes Examples are given in Section 6 1 3 1 1 Start Mark The Start Mark signifies the beginning of a message It is represented by the ASCII character SOH Start Of Header 01hex 3 1 2 Length The Length byte indicates the length in bytes of the fo...

Страница 14: ...e MPT protocol 3 Power Burst I 1 0 If set needs to be determined in Data Field see 3 1 4 4 Power Pause Duration 1 0 If set needs to be determined in Data Field 5 Power Burst II 1 0 If set needs to be determined in Data Field 6 Data 1 0 If set needs to be determined in Data Field 7 Cmd expansion Field 1 0 If set Command Field 2 follows If bit 5 Power Burst II for example for programming and locking...

Страница 15: ...ommand Field is set to 0 the consequent Data Field is omitted this results in the following data field being moved forward decremented by one Data Field Use Range dec Comment 1 Power Burst I 1 255 ms If bit 3 of Command Field 1 is set 2 Power Pause Duration 1 255 ms If bit 4 of Command Field 1 is set 3 Power Burst II 1 255 ms If bit 5 of Command Field 1 is set 4 5 toffLow LSByte MSByte 28 2044 µs ...

Страница 16: ...ented by the ASCII character SOH Start Of Header 01hex 3 2 2 Length The Length byte indicates the length in bytes of the following Status and Data Fields 3 2 3 Status The Status byte provides feedback from the preceding read or program operation Status Bits Setting Comment 0 1 00 MSB LSB Transponder type RO 01 Transponder type R W 10 Transponder type MPT SAMPT 11 Other 2 1 0 If set Startbyte detec...

Страница 17: ...out pre bits provided that a valid RO or R W start byte was detected No read 0 No Data Fields not even transponder start byte was detected status 03hex S W version 1 For example 15hex means S W version 1 5 Section 5 2 provides an overview of the response telegrams of the current TIRIS transponder types 3 2 5 BCC The BCC field is a one byte value of the Longitudinal Redundancy Check calculation Xor...

Страница 18: ...t pin I_so 22 mA Antenna quality factor Q_Ant 25 Operating free air temperature range T_oper 25 to 70 oC Storage temperature range T_store 40 to 85 oC CAUTION Exceeding absolute maximum ratings may lead to permanent damage to the Module Exposure to absolute maximum rated conditions for extended periods may affect device reliability Note Free air temperature air temperature immediately surrounding ...

Страница 19: ... with Micro reader active 100 3 mA ViH Input high voltage 0 8 VSL VSL ViL Input low voltage GND 0 2 VSL VoH Output high voltage VSL 0 7 VSL VoL Output low voltage GND 0 6 V Q_Ant Antenna quality factor 10 15 20 L_Ant Antenna inductance value 46 1 47 0 47 9 µH 1 Typical supply current peak value for the power stage when the RF transmitter is switched on L 47µH Q 12 2 Typical supply current for logi...

Страница 20: ...ta Parameter Minimum Typical Maximum Unit Length 37 9 38 3 38 7 mm Width 28 8 29 3 29 6 mm Height including pins 12 5 13 5 14 0 mm Weight 5 0 Grams Recommended finished pin hole size is 1 mm diameter Figure 4 Top Front and Side View measurements in mm ...

Страница 21: ...ion 5 1 1 Read RO R W OFF ON READ 50 ms 20 ms RF TRANSMITTER POWER BURST I Figure 5 Read function 5 1 2 Program R W READ 20 ms 50 ms WRITE KEYWORD 8 80 16 16 ms 160 ms 32 ms 15 ms PASSWORD 8 16 ms 112 bit 309 ms WRITE WRITE FRAME WRITE DATA 128 bit LSB MSB OFF ON POWER BURST I PB II RF TRANSMITTER Figure 6 Programming data format of the 64 bit Read Write Transponder Write Keyword BBhex Write Passw...

Страница 22: ...01 5 1 3 1 General Read Page of MPT SAMPT 50 ms READ WRITE ADDRESS 86 ms LSB 8 bit 128 bit 20 ms 16 ms ON OFF POWER BURST I RF TRANSMITTER Figure 7 Data Format of the General Read Page Function 5 1 3 2 Program Page of MPT SAMPT READ OR 20 ms 50 ms WRITE ADDRESS WRITE DATA WRITE FRAME BCC 8 80 16 16 ms 160 ms 32 ms 15 ms 293 ms 104 bit 128 bit LSB DISCHARGE MSB RF OFF ON TRANSMITTER POWER BURST I P...

Страница 23: ...RANSMITTER POWER BURST I PB II 309 357 ms 112 136 bit 8 32 16 64 ms Figure 11 Data Format of the Selective Program Page Function 5 1 3 6 Selective Lock Page of SAMPT 50 ms WRITE ADDRESS 8 16 ms READ OR 20 ms 16 32 ms 15 ms 128 bit LSB DISCHARGE WRITE FRAME BCC MSB ADDRESS SELECTIVE ON OFF RF TRANSMITTER POWER BURST I PB II 8 32 16 64 ms 32 56 bit 149 197 ms Figure 12 Data format of the Selective L...

Страница 24: ...field shows which page was affected READ ADDRESS MSB LSB P P P P P P S S PAGE STATUS MSB LSB MSB LSB Page 1 000001 00 Read unlocked page Page 2 000010 01 Programming done 10 Read locked page Page 16 010000 11 Reserved Page 17 010001 000000 00 Read unlocked page locking not correctly executed 000000 01 Programming done but possibly not reliable 000000 10 Read locked page but locking possibly not re...

Страница 25: ...a Field 3 Write Address specifying General Read Page 2 6 77 BCC BCC over previous bytes excluding Start Mark Program Page of MPT The following sequence of bytes programs page 2 of an MPT with 00 00 00 00 00 2D C6 47 MSByte LSByte Byte Content hex Comment Description 0 01 Start Mark 1 0F Length 15 bytes follow excluding BCC 2 6C Command Field 1 Perform Single command calculate FBCC send Power Burst...

Страница 26: ... Byte Content hex Comment Description 0 01 Start Mark 1 0A Length 10 bytes follow excluding BCC 2 1E Status Valid MPT Startbyte detected DBCC O K FBCC O K 3 47 Data Field 1 New Identification Data LSByte 4 C6 Data Field 2 New Identification Data 5 2D 6 00 7 00 8 00 9 00 Data Field 7 New Identification Data 10 00 Data Field 8 New Identification Data MSByte 11 09 Data Field 9 Read Address specifying...

Страница 27: ...requency Shift Keying FSK Frequency Shift Keying IC Integrated Circuit LSB Least Significant Bit LSByte Least Significant Byte MPT Multipage Transponder MSB Most Significant Bit MSByte Most Significant Byte NRZ Non Return to Zero PB I Power Burst one PB II Power Burst two RF Radio Frequency RF ID Radio Frequency Identification RO Read Only Transponder R W Read Write Transponder SCI Serial Communic...

Страница 28: ...he EMC Directive 89 336 EEC The relevant documentation numbers are Declaration of Conformity 11 06 02 005 Type Examination Certificate 11 06 05 001 If the Micro reader is operated from a mains power supply all power connections and additional components of the final device must comply with the European EMC directive Additional connections may have a length of up to 2 m maximum or up to 1 m maximum...

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