INTEGRATED CIRCUITS
Near Field Communication
PN531- µC based Transmission
module
Objective Short Form Specification
Revision 2.0
Public
February 2004
Philips
Semiconductors
Philips Semiconductors
Objective Short Form Specification Rev. 2.0 February 2004
PN531
µC based Transmission module
CONTENTS
1
1.1
1.1
1.2
2
2.1
3
3.1
3.2
4
4.1
4.2
4.3
5
5.1
6
6.1
6.2
6.3
7
8
9
INTRODUCTION
Scope
Features
Application
BLOCK DIAGRAM
Simplified PN531 Block Diagram
PN531 PINNING INFORMATION
Pinning Diagram
Pin Description
OPERATING MODES
Reader/Writer Operating mode
NFC MODE
Card Operating mode
TYPICAL APPLICATION
Circuit Diagram
ELECTRICAL CHARACTERISTICS
Absolute Maximum Continuous Ratings
Operating Condition Range
Current Consumption
REVISION HISTORY
DEFINITIONS
LIFE SUPPORT APPLICATIONS
3
3
4
5
6
6
7
7
8
10
10
11
13
14
14
16
16
16
17
17
18
18
19
Contact Information
2
Philips Semiconductors
Objective Short Form Specification Rev. 2.0 February 2004
PN531
µC based Transmission module
1 INTRODUCTION
1.1 Scope
The PN531 is a highly integrated transmission module for contactless communication at 13.56 MHz including
µ-controller functionality based on an 80C51 core with 32 kbyte of ROM and 1 kbyte of RAM. This µc-based
transmission module combines an outstanding modulation and demodulation concept completely integrated
for different kinds of contactless communication methods and protocols at 13.56 MHz with an easy to use
firmware for the different supported modes and the required host interfaces.
The embedded firmware handles the ISO 14443A and MIFARE
®
reader protocol as well as the basic
FeliCa
TM
reader protocol and the complete NFC IP-1 protocol.
Furthermore the embedded firmware and the internal hardware support the handling and the host protocols
for the different interfaces as
•
•
•
•
USB 2.0
I2C
SPI and
Serial UART
The PN531 supports 3 different operating modes
•
•
•
Reader/writer mode for FeliCa
TM
and ISO14443A cards
Supports Card interface mode for FeliCa
TM
and ISO14443A/MIFARE
®
in combination with secure µC
NFC IP-1 mode
In reader/ writer mode the PN531’s internal transmitter part is able to drive a reader/writer antenna designed
to communicate with ISO14443A /MIFARE
®
or FeliCa
TM
cards and transponders without additional active
circuitry. The receiver part provides a robust and efficient implementation of a demodulation and decoding
circuitry for signals from ISO14443A compatible cards and transponders. The digital part handles the
complete ISO14443A framing and error detection (Parity & CRC).
The PN531 supports MIFARE
Classic (e.g. MIFARE
®
Standard) products. The PN531 supports contactless
communication using MIFARE
®
Higher Baudrates up to 424kbit/s in both directions. In the reader/ writer
mode the PN531 transmission module supports the FeliCa
TM
communication scheme. The receiver part
provides a robust and efficient implementation of the demodulation and decoding circuitry for FeliCa
TM
coded
signals. The digital part handles the FeliCa
TM
framing and error detection like CRC.
The PN531 supports contactless communication using FeliCa
TM
Higher Baudrates up to 424kbit/s in both
directions.
In card mode the PN531 is able to answer a reader/writer command either in FeliCa
TM
or
ISO14443A/MIFARE
®
card mode. The PN531 generates the proper digital load modulated signals and with
an external circuit, can respond to commands sent by the reader/writer.
The PN531 offers the possibility to directly communicate with several NFC enabled devices in the NFC IP-1
mode. The NFC IP-1 mode offers different baudrates up to 424kbit/s. The PN531 handles the complete NFC
framing and error detection.
3
Philips Semiconductors
Objective Short Form Specification Rev. 2.0 February 2004
PN531
µC based Transmission module
1.1
Features
•
80C51 microcontroller core with 32 kbyte ROM and 1 kbyte RAM
•
Highly integrated analog circuitry for transmission and reception
•
Output drivers to connect an antenna with minimum number of external components
•
Integrated RF Level detector
•
Integrated mode detector
•
Hardware and embedded Firmware support for
•
ISO 14443A reader/writer mode
•
MIFARE
®
Classic encryption and MIFARE
®
higher baudrate communication up to 424 kbit/s
•
Contactless communication according to the FeliCa
TM
scheme at 212 kbit/s and 424 kbit/s
•
NFC standard ECMA 340 and ISO 18092: NFC IP-1 interface and protocol
•
Host protocol on following interfaces
•
USB 2.0 full speed compliant device
•
SPI
•
I2C
•
High speed serial UART
•
Optional interrupt line to the host
•
Hard reset with low power function
•
Flexible Power down mode or power reduction mode per software
•
Internal oscillator to connect a 27.12 MHz quartz
•
Internal oscillator to connect a 4 MHz quartz for the USB interface
•
2.5 - 3.6 V power supply
•
USB bus powered (In USB mode)
•
Specific IO ports and interrupt sources for external devices control
4
Philips Semiconductors
Objective Short Form Specification Rev. 2.0 February 2004
PN531
µC based Transmission module
1.2 Application
The PN531 is tailored to fulfil the requirements of various applications using contactless communication
based on the ECMA340 (NFC IP-1) Interface and protocol standard, the ISO14443A reader and FeliCa
reader protocol. NFC IP-1 is also standardised in ISO/IEC 18092.
Compatible to current RFID infrastructure the NFC technology offers a new direct communication link
between two NFC enhanced devices. This peer-to-peer communication enables a direct data exchange
between devices.
The integrated microcontroller and embedded firmware of the PN 531 means a fast and easy integration in a
contactless system. The high-level abstraction commands and the complete handling of RF communication
protocols free the host CPU of all real time related constraints.
NFC technology is designed to meet requirements for consumer markets, as well as handheld and PC
markets.
Typical devices to integrate the PN531 are
•
Mobile phones
•
PDAs
•
PCs
•
Intelligent remote controls
•
PC peripherals e.g. printers and mice
•
Consumer electronic devices like digital cameras
5
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