本文介绍了MFRC530主要特性,方框图, 接收器电路框图, 定时器模块框图,以及与微处理器的连接框图和典型应用电路图.NXP公司的MFRC530支持ISO14443A通信方案所有层面的高度集成的13.56MHz无接触通信的读卡器IC,它采用杰出的调制和解调技术,内部的发送器能驱动接近100毫米距离的天线,接收器则能有效地实现对来自ISO14443A兼容的转发器信号进行解调,数据速率高达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
图1.MF RC530方框图
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