本文介紹了MFRC530主要特性,方框圖, 接收器電路框圖, 定時(shí)器模塊框圖,以及與微處理器的連接框圖和典型應(yīng)用電路圖.NXP公司的MFRC530支持ISO14443A通信方案所有層面的高度集成的13.56MHz無(wú)接觸通信的讀卡器IC,它采用杰出的調(diào)制和解調(diào)技術(shù),內(nèi)部的發(fā)送器能驅(qū)動(dòng)接近100毫米距離的天線,接收器則能有效地實(shí)現(xiàn)對(duì)來(lái)自ISO14443A兼容的轉(zhuǎn)發(fā)器信號(hào)進(jìn)行解調(diào),數(shù)據(jù)速率高達(dá)424k波特.

The MF RC530 supports all layers of the ISO14443A communication scheme.

The MF RC530 supports contactless communication using MIFARE® Higher Baudrates.

The internal transmitter part is able to drive an antenna designed for proximity operating distance (up to 100 mm) directly without additional active circuitry.

The receiver part provides a robust and efficient implementation of a demodulation and decoding circuitry for signals from ISO14443A compatible transponders.

The digital part handles the complete ISO14443A framing and error detection (Parity & CRC). Additionally it supports the fast MIFARE® Classic security algorithm to authenticate MIFARE Classic (e.g. MIFARE® Standard, MIFARE® Light) products.

A comfortable parallel interface, which can be directly connected to any 8-bit μ-Processor gives high flexibility for the reader/terminal design. Additionally a SPI compatible interface is supported.

MF RC530主要特性:

• Highly integrated analog circuitry to demodulate and decode card response

• Buffered output drivers to connect an antenna with minimum number of external components

• Proximity operating distance (up to 100 mm)

• Supports ISO 14443A

• Supports MIFARE® Dual Interface Card ICs and supports MIFARE® Classic protocol

• Supports contactless communication with higher baudrates up to 424kbaud

• Crypto1 and secure non-volatile internal key memory

• Pin-compatible to the MF RC500, MF RC531, SL RC400 and CL RC632

• Parallel μ-Processor interface with internal address latch and IRQ line

• SPI compatible interface

• Flexible interrupt handling

• Automatic detection of parallel μ-Processor interface type

• Comfortable 64 byte send and receive FIFO-buffer

• Hard reset with low power function

• Power down mode per software

• Programmable timer

• Unique serial number

• User programmable start-up configuration

• Bit- and byte-oriented framing

• Independent power supply pins for digital, analog and transmitter part

• Internal oscillator buffer to connect 13.56 MHz quartz, optimised for low phase jitter

• Clock frequency filtering

• 3.3 V to 5 V operation for transmitter (antenna driver) in short range and proximity applications

• 3.3 V or 5V operation for the digital part


圖1.MF RC530方框圖

圖2.MF RC530接收器電路框圖

圖3.MF RC530定時(shí)器模塊框圖

圖4.MF RC530帶共同讀/寫(xiě)選通的與微處理器的連接框圖

圖5.MF RC530單獨(dú)讀/寫(xiě)選通的與微處理器的連接框圖

圖6.MF RC530帶直接匹配天線的應(yīng)用電路圖