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參數(shù)資料
| 型號(hào)： | S4100 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Multi-Function Reader Module Data Sheet |
| 中文描述： | 多功能讀卡器模塊數(shù)據(jù)表 |
| 文件頁數(shù)： | 5/8頁 |
| 文件大?。?/td> | 325K |
| 代理商： | S4100 |
S4100 MULTI-FUNCTION READER MODULE
11-06-22-715 10/2003
5
WWW.TI-RFID.COM
MFR READER SYSTEM OVERVIEW
A complete reader system employing the S4100 MFR module consists of the module, an HF (13.56 MHz) section
and/or an LF (134.2 kHz) section, an I/O section, and a power supply. Communication with the circuit is achieved
by means of a three wire serial link (USART). The microprocessor interface provides on-chip data encoding and
recovery, thereby minimizing software design efforts on the part of the user.
The S4100 allows access to the full feature set and onboard data storage of each contactless technology using
high-level and low-level commands available through the onboard USART, or directly coded into application-
specific firmware loaded into the onboard FLASH. The S4100 provides a boot loader that allows standard or
customized firmware to be downloaded via the onboard USART. The ability to execute application-specific
firmware onboard the S4100 offers a mechanism for maximizing RF processing speed while minimizing the total
cost of new contactless applications.
The HF and LF Analog Front Ends (AFE) produce the necessary RF transmit signals for each technology as
driven by the onboard microcontroller. The AFEs also contain the receiver function to filter and demodulate
transponder response signals for further decoding by the microcontroller. The S4100 provides the ability to read
multiple tokens across multiple technologies by polling each technology individually and performing the
anticollision/arbitration required.
Figure 4. A Complete System Diagram Which includes the S4100 Module.
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