PN512 Datasheet. Www.s Manuals.com. Nxp

User Manual: Datasheets PN5120A0HN/C1, PN5120A0HN/C2, PN5120A0HN1/C1, PN5120A0HN1/C2, PN512AA0HN1/C2, PN512AA0HN1/C2BI.

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1. Introduction
- 1.1 Different available versions
2. General description
3. Features and benefits
4. Quick reference data
5. Ordering information
6. Block diagram
7. Pinning information
- 7.1 Pinning
- 7.2 Pin description
8. Functional description
- 8.1 ISO/IEC 14443 A/MIFARE functionality
- 8.2 ISO/IEC 14443 B functionality
- 8.3 FeliCa reader/writer functionality
  - 8.3.1 FeliCa framing and coding
- 8.4 NFCIP-1 mode
9. PN512 register SET
- 9.1 PN512 registers overview
  - 9.1.1 Register bit behavior
- 9.2 Register description
10. Digital interfaces
- 10.1 Automatic microcontroller interface detection
- 10.2 Serial Peripheral Interface
- 10.3 UART interface
- 10.4 I2C Bus Interface
11. 8-bit parallel interface
- 11.1 Overview of supported host controller interfaces
- 11.2 Separated Read/Write strobe
- 11.3 Common Read/Write strobe
12. Analog interface and contactless UART
- 12.1 General
- 12.2 TX driver
- 12.3 RF level detector
- 12.4 Data mode detector
- 12.5 Serial data switch
- 12.6 S2C interface support
  - 12.6.1 Signal shape for Felica S2C interface support
  - 12.6.2 Waveform shape for ISO/IEC 14443A and MIFARE S2C support
- 12.7 Hardware support for FeliCa and NFC polling
13. FIFO buffer
- 13.1 Accessing the FIFO buffer
- 13.2 Controlling the FIFO buffer
- 13.3 FIFO buffer status information
14. Interrupt request system
- 14.1 Interrupt sources overview
15. Timer unit
16. Power reduction modes
- 16.1 Hard power-down
- 16.2 Soft power-down mode
- 16.3 Transmitter power-down mode
17. Oscillator circuitry
18. Reset and oscillator start-up time
- 18.1 Reset timing requirements
- 18.2 Oscillator start-up time
19. PN512 command set
- 19.1 General description
- 19.2 General behavior
- 19.3 PN512 command overview
  - 19.3.1 PN512 command descriptions
20. Testsignals
- 20.1 Selftest
- 20.2 Testbus
- 20.3 Testsignals at pin AUX
- 20.4 PRBS
21. Errata sheet
22. Application design-in information
23. Limiting values
24. Recommended operating conditions
25. Thermal characteristics
26. Characteristics
- 26.1 Timing characteristics
- 26.2 8-bit parallel interface timing
  - 26.2.1 AC symbols
  - 26.2.2 AC operating specification
    - 26.2.2.1 Bus timing for separated Read/Write strobe
    - 26.2.2.2 Bus timing for common Read/Write strobe
27. Package information
28. Package outline
29. Abbreviations
30. Glossary
31. References
32. Revision history
33. Legal information
- 33.1 Data sheet status
- 33.2 Definitions
- 33.3 Disclaimers
- 33.4 Licenses
- 33.5 Trademarks
34. Contact information
35. Tables
36. Figures
37. Contents

1. Introduction

This document describes the functionality and electrical specifications of the

transceiver IC PN512.

The PN512 is a highly integrated transceiver IC for contactless communication at

13.56 MHz. This transceiver IC utilizes an outstanding modulation and demodulation

concept completely integrated for different kinds of contactless communication methods

and protocols at 13.56 MHz.

1.1 Different available versions

The PN512 is available in three versions:

•PN5120A0HN1/C2 (HVQFN32) and PN5120A0HN/C2 (HVQFN40), hereafter named

as version 2.0

•PN512AA0HN1/C2 (HVQFN32) and PN512AA0HN1/C2BI (HVQFN32 with Burn In),

hereafter named as industrial version, fulfilling the automotive qualification stated in

AEC-Q100 grad 3 from the Automotive Electronics Council, defining the critical stress

test qualification for automotive integrated circuits (ICs).

•PN5120A0HN1/C1(HVQFN32) and PN5120A0HN/C1 (HVQFN40), hereafter named

as version 1.0

The data sheet describes the functionality for the industrial version and version 2.0. The

differences of the version 1.0 to the version 2.0 are summarized in Section 21. The

industrial version has only differences within the outlined characteristics and limitations.

2. General description

The PN512 transceiver ICs support 4 different operating modes

•Reader/Writer mode supporting ISO/IEC 14443A/MIFARE and FeliCa scheme

•Reader/Writer mode supporting ISO/IEC 14443B

•Card Operation mode supporting ISO/IEC 14443A/MIFARE and FeliCa scheme

•NFCIP-1 mode

Enabled in Reader/Writer mode for ISO/IEC 14443A/MIFARE, the PN512’s internal

transmitter part is able to drive a reader/writer antenna designed to communicate with

ISO/IEC 14443A/ MIFARE cards and transponders without additional active circuitry. The

receiver part provides a robust and efficient implementation of a demodulation and

PN512

Transmission module

Rev. 4.2 — 28 August 2012

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Product data sheet

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NXP Semiconductors PN512

Transmission module

decoding circuitry for signals from ISO/IEC 14443A/MIFARE compatible cards and

transponders. The digital part handles the complete ISO/IEC 14443A framing and error

detection (Parity & CRC).

The PN512 supports MIFARE 1K or MIFARE 4K emulation products. The PN512 supports

contactless communication using MIFARE higher transfer speeds up to 424 kbit/s in both

directions.

Enabled in Reader/Writer mode for FeliCa, the PN512 transceiver IC supports the FeliCa

communication scheme. The receiver part provides a robust and efficient implementation

of the demodulation and decoding circuitry for FeliCa coded signals. The digital part

handles the FeliCa framing and error detection like CRC. The PN512 supports contactless

communication using FeliCa Higher transfer speeds up to 424 kbit/s in both directions.

The PN512 supports all layers of the ISO/IEC 14443B reader/writer communication

scheme, given correct implementation of additional components, like oscillator, power

supply, coil etc. and provided that standardized protocols, e.g. like ISO/IEC 14443-4

and/or ISO/IEC 14443B anticollision are correctly implemented.

In Card Operation mode, the PN512 transceiver IC is able to answer to a reader/writer

command either according to the FeliCa or ISO/IEC 14443A/MIFARE card interface

scheme. The PN512 generates the digital load modulated signals and in addition with an

external circuit the answer can be sent back to the reader/writer. A complete card

functionality is only possible in combination with a secure IC using the S2C interface.

Additionally, the PN512 transceiver IC offers the possibility to communicate directly to an

NFCIP-1 device in the NFCIP-1 mode. The NFCIP-1 mode offers different communication

mode and transfer speeds up to 424 kbit/s according to the Ecma 340 and ISO/IEC 18092

NFCIP-1 Standard. The digital part handles the complete NFCIP-1 framing and error

detection.

Various host controller interfaces are implemented:

•8-bit parallel interface1

•SPI interface

•serial UART (similar to RS232 with voltage levels according pad voltage supply)

•I2C interface.

A purchaser of this NXP IC has to take care for appropriate third party patent licenses.

1. 8-bit parallel Interface only available in HVQFN40 package.

Product data sheet

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3. Features and benefits

Highly integrated analog circuitry to demodulate and decode responses

Buffered output drivers for connecting an antenna with the minimum number of

external components

Integrated RF Level detector

Integrated data mode detector

Supports ISO/IEC 14443 A/MIFARE

Supports ISO/IEC 14443 B Read/Write modes

Typical operating distance in Read/Write mode up to 50 mm depending on the

antenna size and tuning

Typical operating distance in NFCIP-1 mode up to 50 mm depending on the antenna

size and tuning and power supply

Typical operating distance in ISO/IEC 14443A/MIFARE card or FeliCa Card Operation

mode of about 100 mm depending on the antenna size and tuning and the external

field strength

Supports MIFARE 1K or MIFARE 4K emulation encryption in Reader/Writer mode

ISO/IEC 14443A higher transfer speed communication at 212 kbit/s and 424 kbit/s

Contactless communication according to the FeliCa scheme at 212 kbit/s and

424 kbit/s

Integrated RF interface for NFCIP-1 up to 424 kbit/s

S2C interface

Additional power supply to directly supply the smart card IC connected via S2C

Supported host interfaces

SPI up to 10 Mbit/s

I2C-bus interface up to 400 kBd in Fast mode, up to 3400 kBd in High-speed mode

RS232 Serial UART up to 1228.8 kBd, with voltage levels dependant on pin

voltage supply

8-bit parallel interface with and without Address Latch Enable

FIFO buffer handles 64 byte send and receive

Flexible interrupt modes

Hard reset with low power function

Power-down mode per software

Programmable timer

Internal oscillator for connection to 27.12 MHz quartz crystal

2.5 V to 3.6 V power supply

CRC coprocessor

Programmable I/O pins

Internal self-test

Product data sheet

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Transmission module

4. Quick reference data

[1] Supply voltages below 3 V reduce the performance in, for example, the achievable operating distance.

[2] VDDA, VDDD and VDD(TVDD) must always be the same voltage.

[3] VDD(PVDD) must always be the same or lower voltage than VDDD.

[4] Ipd is the total current for all supplies.

[5] IDD(PVDD) depends on the overall load at the digital pins.

[6] IDD(TVDD) depends on VDD(TVDD) and the external circuit connected to pins TX1 and TX2.

[7] During typical circuit operation, the overall current is below 100 mA.

[8] Typical value using a complementary driver configuration and an antenna matched to 40  between pins TX1 and TX2 at 13.56 MHz.

Table 1. Quick reference data

Symbol Parameter Conditions Min Typ Max Unit

VDDA analog supply voltage VDD(PVDD) VDDA = VDDD = VDD(TVDD);

VSSA =V

SSD =V

SS(PVSS) =V

SS(TVSS) =0V

[1][2] 2.5 - 3.6 V

VDDD digital supply voltage

VDD(TVDD) TVDD supply voltage

VDD(PVDD) PVDD supply voltage [3] 1.6 - 3.6 V

VDD(SVDD) SVDD supply voltage VSSA =V

SSD =V

SS(PVSS) =V

SS(TVSS) = 0 V 1.6 - 3.6 V

Ipd power-down current VDDA =V

DDD = VDD(TVDD) =V

DD(PVDD) =3V

hard power-down; pin NRSTPD set LOW [4] --5A

soft power-down; RF level detector on [4] --10A

IDDD digital supply current pin DVDD; VDDD =3V - 6.5 9 mA

IDDA analog supply current pin AVDD; VDDA = 3 V, CommandReg register’s

RcvOff bit = 0

-710mA

pin AVDD; receiver switched off; VDDA =3V,

CommandReg register’s RcvOff bit = 1

-35mA

IDD(PVDD) PVDD supply current pin PVDD [5] --40mA

IDD(TVDD) TVDD supply current pin TVDD; continuous wave [6][7][8] -60100mA

Tamb ambient temperature HVQFN32, HVQFN40 30 +85 C

lndustrial version:

Ipd power-down current VDDA =V

DDD = VDD(TVDD) =V

DD(PVDD) =3V

hard power-down; pin NRSTPD set LOW [4] --15A

soft power-down; RF level detector on [4] --30A

Tamb ambient temperature HVQFN32 40 - +90 C

Product data sheet

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5. Ordering information

Table 2. Ordering information

Type number Package

Name Description Version

PN5120A0HN1/C2 HVQFN32 plastic thermal enhanced very thin quad flat package; no leads;

32 terminal; body 5  5  0.85 mm

SOT617-1

PN5120A0HN/C2 HVQFN40 plastic thermal enhanced very thin quad flat package; no leads;

40 terminals; body 6  6  0.85 mm

SOT618-1

PN512AA0HN1/C2 HVQFN32 plastic thermal enhanced very thin quad flat package; no leads;

32 terminal; body 5  5  0.85 mm

SOT617-1

PN512AA0HN1/C2BI HVQFN32 plastic thermal enhanced very thin quad flat package; no leads;

32 terminal; body 5  5  0.85 mm

SOT617-1

PN5120A0HN1/C1 HVQFN32 plastic thermal enhanced very thin quad flat package; no leads;

32 terminal; body 5  5  0.85 mm

SOT617-1

PN5120A0HN/C1 HVQFN40 plastic thermal enhanced very thin quad flat package; no leads;

40 terminals; body 6  6  0.85 mm

SOT618-1

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NXP Semiconductors PN512

Transmission module

6. Block diagram

The analog interface handles the modulation and demodulation of the analog signals

according to the Card Receiving mode, Reader/Writer mode and NFCIP-1 mode

communication scheme.

The RF level detector detects the presence of an external RF-field delivered by the

antenna to the RX pin.

The Data mode detector detects a MIFARE, FeliCa or NFCIP-1 mode in order to prepare

the internal receiver to demodulate signals, which are sent to the PN512.

The communication (S2C) interface provides digital signals to support communication for

transfer speeds above 424 kbit/s and digital signals to communicate to a secure IC.

The contactless UART manages the protocol requirements for the communication

protocols in cooperation with the host. The FIFO buffer ensures fast and convenient data

transfer to and from the host and the contactless UART and vice versa.

Various host interfaces are implemented to meet different customer requirements.

Fig 1. Simplified block diagram of the PN512

001aaj627

HOST

ANTENNA FIFO

BUFFER

ANALOG

INTERFACE CONTACTLESS

UART SERIAL UART

SPI

C-BUS

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NXP Semiconductors PN512

Transmission module

Fig 2. Detailed block diagram of the PN512

001aak602

DVDD

NRSTPD

IRQ

MFIN

MFOUT

SVDD

OSCIN

OSCOUT

VMID AUX1 AUX2 RX TVSS TX1 TX2 TVDD

16 19 20 17 10, 14 11 13 12

DVSS

AVDD

PVSSPVDDSDA/NSS/RX EA I2C

5224 32 1

D1/ADR_5

D2/ADR_4

D3/ADR_3

D4/ADR_2

D5/ADR_1/

SCK/DTRQ

D6/ADR_0/

MOSI/MX

D7/SCL/

MISO/TX

AVSS

FIFO CONTROL

MIFARE CLASSIC UNIT

STATE MACHINE

COMMAND REGISTER

PROGRAMABLE TIMER

INTERRUPT CONTROL

CRC16

GENERATION AND CHECK

PARALLEL/SERIAL

CONVERTER

SERIAL DATA SWITCH

TRANSMITTER CONTROL

BIT COUNTER

PARITY GENERATION AND CHECK

FRAME GENERATION AND CHECK

BIT DECODING BIT ENCODING

RANDOM NUMBER

GENERATOR

ANALOG TO DIGITAL

CONVERTER

I-CHANNEL

AMPLIFIER

ANALOG TEST

MULTIPLEXOR

AND

DIGITAL TO

ANALOG

CONVERTER

I-CHANNEL

DEMODULATOR

Q-CHANNEL

AMPLIFIER

CLOCK

GENERATION,

FILTERING AND

DISTRIBUTION

Q-CLOCK

GENERATION

OSCILLATOR

TEMPERATURE

SENSOR

Q-CHANNEL

DEMODULATOR

AMPLITUDE

RATING

REFERENCE

VOLTAGE

64-BYTE FIFO

BUFFER

CONTROL REGISTER

BANK

SPI, UART, I2C-BUS INTERFACE CONTROL

VOLTAGE

MONITOR

AND

POWER ON

DETECT

RESET

CONTROL

POWER-DOWN

CONTROL

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7. Pinning information

7.1 Pinning

Fig 3. Pinning configuration HVQFN32 (SOT617-1)

Fig 4. Pinning configuration HVQFN40 (SOT618-1)

001aan212

PN512

Transparent top view

SIGIN

SIGOUT

AVSS

NRSTPD AUX1

PVSS AUX2

DVSS OSCIN

DVDD OSCOUT

PVDD IRQ

A1 ALE

SVDD

TVSS

TX1

TVDD

TX2

TVSS

AVDD

VMID

8 17

7 18

6 19

5 20

4 21

3 22

2 23

1 24

terminal 1

index area

001aan213

PN512

AVSS

NRSTPD

SIGIN

AUX1

PVSS AUX2

DVSS OSCIN

DVDD OSCOUT

PVDD IRQ

A5 NWR

A4 NRD

A3 ALE

A2 NCS

SIGOUT

SVDD

TVSS

TX1

TVDD

TX2

TVSS

AVDD

VMID

10 21

9 22

8 23

7 24

6 25

5 26

4 27

3 28

2 29

1 30

terminal 1

index area

Transparent top view

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NXP Semiconductors PN512

Transmission module

7.2 Pin description

Table 3. Pin description HVQFN32

Pin Symbol Type Description

1A1IAddress Line

2 PVDD PWR Pad power supply

3DVDDPWRDigital Power Supply

4 DVSS PWR Digital Ground

5 PVSS PWR Pad power supply ground

6 NRSTPD I Not Reset and Power Down: When LOW, internal current sinks are switched off, the

oscillator is inhibited, and the input pads are disconnected from the outside world. With

a positive edge on this pin the internal reset phase starts.

7 SIGIN I Communication Interface Input: accepts a digital, serial data stream

8 SIGOUT O Communication Interface Output: delivers a serial data stream

9 SVDD PWR S2C Pad Power Supply: provides power to the S2C pads

10 TVSS PWR Transmitter Ground: supplies the output stage of TX1 and TX2

11 TX1 O Transmitter 1: delivers the modulated 13.56 MHz energy carrier

12 TVDD PWR Transmitter Power Supply: supplies the output stage of TX1 and TX2

13 TX2 O Transmitter 2: delivers the modulated 13.56 MHz energy carrier

14 TVSS PWR Transmitter Ground: supplies the output stage of TX1 and TX2

15 AVDD PWR Analog Power Supply

16 VMID PWR Internal Reference Voltage: This pin delivers the internal reference voltage.

17 RX I Receiver Input

18 AVSS PWR Analog Ground

19 AUX1 O Auxiliary Outputs: These pins are used for testing.

20 AUX2 O

21 OSCIN I Crystal Oscillator Input: input to the inverting amplifier of the oscillator. This pin is

also the input for an externally generated clock (fosc = 27.12 MHz).

22 OSCOUT O Crystal Oscillator Output: Output of the inverting amplifier of the oscillator.

23 IRQ O Interrupt Request: output to signal an interrupt event

24 ALE I Address Latch Enable: signal to latch AD0 to AD5 into the internal address latch

when HIGH.

25 to 31 D1 to D7 I/O 8-bit Bi-directional Data Bus.

Remark: An 8-bit parallel interface is not available.

Remark: If the host controller selects I2C as digital host controller interface, these pins

can be used to define the I2C address.

Remark: For serial interfaces this pins can be used for test signals or I/Os.

32 A0 I Address Line

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NXP Semiconductors PN512

Transmission module

Table 4. Pin description HVQFN40

Pin Symbol Type Description

1 to 4 A2 to A5 I Address Line

5 PVDD PWR Pad power supply

6DVDDPWRDigital Power Supply

7 DVSS PWR Digital Ground

8 PVSS PWR Pad power supply ground

9 NRSTPD I Not Reset and Power Down: When LOW, internal current sinks are switched off, the

oscillator is inhibited, and the input pads are disconnected from the outside world. With

a positive edge on this pin the internal reset phase starts.

10 SIGIN I Communication Interface Input: accepts a digital, serial data stream

11 SIGOUT O Communication Interface Output: delivers a serial data stream

12 SVDD PWR S2C Pad Power Supply: provides power to the S2C pads

13 TVSS PWR Transmitter Ground: supplies the output stage of TX1 and TX2

14 TX1 O Transmitter 1: delivers the modulated 13.56 MHz energy carrier

15 TVDD PWR Transmitter Power Supply: supplies the output stage of TX1 and TX2

16 TX2 O Transmitter 2: delivers the modulated 13.56 MHz energy carrier

17 TVSS PWR Transmitter Ground: supplies the output stage of TX1 and TX2

18 AVDD PWR Analog Power Supply

19 VMID PWR Internal Reference Voltage: This pin delivers the internal reference voltage.

20 RX I Receiver Input

21 AVSS PWR Analog Ground

22 AUX1 O Auxiliary Outputs: These pins are used for testing.

23 AUX2 O

24 OSCIN I Crystal Oscillator Input: input to the inverting amplifier of the oscillator. This pin is

also the input for an externally generated clock (fosc = 27.12 MHz).

25 OSCOUT O Crystal Oscillator Output: Output of the inverting amplifier of the oscillator.

26 IRQ O Interrupt Request: output to signal an interrupt event

27 NWR I Not Write: strobe to write data (applied on D0 to D7) into the PN512 register

28 NRD I Not Read: strobe to read data from the PN512 register (applied on D0 to D7)

29 ALE I Address Latch Enable: signal to latch AD0 to AD5 into the internal address latch

when HIGH.

30 NCS I Not Chip Select: selects and activates the host controller interface of the PN512

31 to 38 D0 to D7 I/O 8-bit Bi-directional Data Bus.

Remark: For serial interfaces this pins can be used for test signals or I/Os.

Remark: If the host controller selects I2C as digital host controller interface, these pins

can be used to define the I2C address.

39 to 40 A0 to A1 I Address Line

Product data sheet

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NXP Semiconductors PN512

Transmission module

8. Functional description

The PN512 transmission module supports the Read/Write mode for

ISO/IEC 14443 A/MIFARE and ISO/IEC 14443 B using various transfer speeds and

modulation protocols.

PN512 transceiver IC supports the following operating modes:

•Reader/Writer mode supporting ISO/IEC 14443A/MIFARE and FeliCa scheme

•Card Operation mode supporting ISO/IEC 14443A/MIFARE and FeliCa scheme

•NFCIP-1 mode

The modes support different transfer speeds and modulation schemes. The following

chapters will explain the different modes in detail.

Note: All indicated modulation indices and modes in this chapter are system parameters.

This means that beside the IC settings a suitable antenna tuning is required to achieve the

optimum performance.

8.1 ISO/IEC 14443 A/MIFARE functionality

The physical level communication is shown in Figure 6.

The physical parameters are described in Table 4.

Fig 5. PN512 Read/Write mode

001aan218

BATTERY

reader/writer contactless card

MICROCONTROLLER

PN512

ISO/IEC 14443 A CARD

Fig 6. ISO/IEC 14443 A/MIFARE Read/Write mode communication diagram

Table 5. Communication overview for ISO/IEC 14443 A/MIFARE reader/writer

Communication

direction Signal type Transfer speed

106 kBd 212 kBd 424 kBd

Reader to card (send

data from the PN512

to a card)

reader side

modulation

100 % ASK 100 % ASK 100 % ASK

bit encoding modified Miller

encoding

modified Miller

encoding

modified Miller

encoding

bit length 128 (13.56 s) 64 (13.56 s) 32 (13.56 s)

(1)

(2)

001aan219

PN512

ISO/IEC 14443 A CARD

ISO/IEC 14443 A

READER

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NXP Semiconductors PN512

Transmission module

The PN512’s contactless UART and dedicated external host must manage the complete

ISO/IEC 14443 A/MIFARE protocol. Figure 7 shows the data coding and framing

according to ISO/IEC 14443 A/MIFARE.

The internal CRC coprocessor calculates the CRC value based on ISO/IEC 14443 A

part 3 and handles parity generation internally according to the transfer speed. Automatic

parity generation can be switched off using the ManualRCVReg register’s ParityDisable

bit.

8.2 ISO/IEC 14443 B functionality

The MFRC523 reader IC fully supports international standard ISO 14443 which includes

communication schemes ISO 14443 A and ISO 14443 B.

Refer to the ISO 14443 reference documents Identification cards - Contactless integrated

circuit cards - Proximity cards (parts 1 to 4).

Remark: NXP Semiconductors does not offer a software library to enable design-in of the

ISO 14443 B protocol.

Card to reader

(PN512 receives data

from a card)

card side

modulation

subcarrier load

modulation

subcarrier load

modulation

subcarrier load

modulation

subcarrier

frequency

13.56 MHz/16 13.56 MHz/16 13.56 MHz/16

bit encoding Manchester

encoding

BPSK BPSK

Table 5. Communication overview for ISO/IEC 14443 A/MIFARE reader/writer …continued

Communication

direction Signal type Transfer speed

106 kBd 212 kBd 424 kBd

Fig 7. Data coding and framing according to ISO/IEC 14443 A

001aak585

ISO/IEC 14443 A framing at 106 kBd

8-bit data 8-bit data 8-bit data

odd

parity

odd

parity

start

odd

parity

start bit is 1

ISO/IEC 14443 A framing at 212 kBd, 424 kBd and 848 kBd

8-bit data 8-bit data 8-bit data

odd

parity

odd

parity

start

even

parity

start bit is 0

burst of 32

subcarrier clocks even parity at the

end of the frame

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Transmission module

8.3 FeliCa reader/writer functionality

The FeliCa mode is the general reader/writer to card communication scheme according to

the FeliCa specification. The following diagram describes the communication on a

physical level, the communication overview describes the physical parameters.

The contactless UART of PN512 and a dedicated external host controller are required to

handle the complete FeliCa protocol.

8.3.1 FeliCa framing and coding

To enable the FeliCa communication a 6 byte preamble (00h, 00h, 00h, 00h, 00h, 00h)

and 2 bytes Sync bytes (B2h, 4Dh) are sent to synchronize the receiver.

The following Len byte indicates the length of the sent data bytes plus the LEN byte itself.

The CRC calculation is done according to the FeliCa definitions with the MSB first.

To transmit data on the RF interface, the host controller has to send the Len- and data-

bytes to the PN512's FIFO-buffer. The preamble and the sync bytes are generated by the

PN512 automatically and must not be written to the FIFO by the host controller. The

PN512 performs internally the CRC calculation and adds the result to the data frame.

Example for FeliCa CRC Calculation:

Fig 8. FeliCa reader/writer communication diagram

Table 6. Communication overview for FeliCa reader/writer

Communication

direction FeliCa FeliCa Higher

transfer speeds

Transfer speed 212 kbit/s 424 kbit/s

PN512  card Modulation on reader side 8-30 % ASK 8-30 % ASK

bit coding Manchester Coding Manchester Coding

Bitlength (64/13.56) s (32/13.56) s

card PN512 Loadmodulation on card side > 12 % ASK > 12 % ASK

bit coding Manchester coding Manchester coding

2. PICC to PCD, > 12 % ASK loadmodulation

Manchester coded, baudrate 212 to 424 kbaud

1. PCD to PICC, 8-30 % ASK

Manchester coded, baudrate 212 to 424 kbaud

001aan214

PN512

FeliCa CARD

(PICC)

Felica READER

(PCD)

Table 7. FeliCa framing and coding

Preamble Sync Len n-Data CRC

00h 00h 00h 00h 00h 00h B2h 4Dh

Table 8. Start value for the CRC Polynomial: (00h), (00h)

Preamble Sync Len 2 Data Bytes CRC

00h 00h 00h 00h 00h 00h B2h 4Dh 03h ABh CDh 90h 35h

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8.4 NFCIP-1 mode

The NFCIP-1 communication differentiates between an active and a Passive

Communication mode.

•Active Communication mode means both the initiator and the target are using their

own RF field to transmit data.

•Passive Communication mode means that the target answers to an initiator command

in a load modulation scheme. The initiator is active in terms of generating the RF field.

•Initiator: generates RF field at 13.56 MHz and starts the NFCIP-1 communication

•Target: responds to initiator command either in a load modulation scheme in Passive

Communication mode or using a self generated and self modulated RF field for Active

Communication mode.

In order to fully support the NFCIP-1 standard the PN512 supports the Active and Passive

Communication mode at the transfer speeds 106 kbit/s, 212 kbit/s and 424 kbit/s as

defined in the NFCIP-1 standard.

Fig 9. NFCIP-1 mode

001aan215

BATTERY

initiator: active target:

passive or active

MICROCONTROLLER

PN512

BATTERY

MICROCONTROLLER

PN512

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8.4.1 Active communication mode

Active communication mode means both the initiator and the target are using their own

RF field to transmit data.

The contactless UART of PN512 and a dedicated host controller are required to handle

the NFCIP-1 protocol.

Note: Transfer Speeds above 424 kbit/s are not defined in the NFCIP-1 standard. The

PN512 supports these transfer speeds only with dedicated external circuits.

Fig 10. Active communication mode

Table 9. Communication overview for Active communication mode

Communication

direction 106 kbit/s 212 kbit/s 424 kbit/s 848 kbit/s 1.69 Mbit/s,

3.39 Mbit/s

Initiator Target According to

ISO/IEC 14443A

100 % ASK,

Modified

Miller Coded

According to FeliCa, 8-30 %

ASK Manchester Coded

digital capability to handle

this communication

Target Initiator

host NFC INITIATOR

powered to

generate RF field

1. initiator starts communication at

selected transfer speed

Initial command

response

2. target answers at

the same transfer speed

host NFC INITIATOR

powered for digital

processing

host

NFC TARGET

powered for

digital processing

powered to

generate RF field

001aan216

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8.4.2 Passive communication mode

Passive Communication mode means that the target answers to an initiator command in a

load modulation scheme. The initiator is active meaning generating the RF field.

The contactless UART of PN512 and a dedicated host controller are required to handle

the NFCIP-1 protocol.

Note: Transfer Speeds above 424 kbit/s are not defined in the NFCIP-1 standard. The

PN512 supports these transfer speeds only with dedicated external circuits.

Fig 11. Passive communication mode

Table 10. Communication overview for Passive communication mode

Communication

direction 106 kbit/s 212 kbit/s 424 kbit/s 848 kbit/s 1.69 Mbit/s,

3.39 Mbit/s

Initiator Target According to

ISO/IEC 14443A

100 % ASK,

Modified

Miller Coded

According to FeliCa, 8-30

% ASK Manchester Coded

digital capability to handle

this communication

Target Initiator According to

ISO/IEC 14443A

subcarrier load

modulation,

Manchester Coded

According to FeliCa, > 12 %

ASK Manchester Coded

host NFC INITIATOR

powered to

generate RF field

1. initiator starts communication

at selected transfer speed

2. targets answers using

load modulated data

at the same transfer speed

host

NFC TARGET

powered for

digital processing

001aan217

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8.4.3 NFCIP-1 framing and coding

The NFCIP-1 framing and coding in Active and Passive Communication mode is defined

in the NFCIP-1 standard.

8.4.4 NFCIP-1 protocol support

The NFCIP-1 protocol is not completely described in this document. For detailed

explanation of the protocol refer to the NFCIP-1 standard. However the datalink layer is

according to the following policy:

•Speed shall not be changed while continuum data exchange in a transaction.

•Transaction includes initialization and anticollision methods and data exchange (in

continuous way, meaning no interruption by another transaction).

In order not to disturb current infrastructure based on 13.56 MHz general rules to start

NFCIP-1 communication are defined in the following way.

1. Per default NFCIP-1 device is in Target mode meaning its RF field is switched off.

2. The RF level detector is active.

3. Only if application requires the NFCIP-1 device shall switch to Initiator mode.

4. Initiator shall only switch on its RF field if no external RF field is detected by RF Level

detector during a time of TIDT.

5. The initiator performs initialization according to the selected mode.

8.4.5 MIFARE Card operation mode

Table 11. Framing and coding overview

Transfer speed Framing and Coding

106 kbit/s According to the ISO/IEC 14443A/MIFARE scheme

212 kbit/s According to the FeliCa scheme

424 kbit/s According to the FeliCa scheme

Table 12. MIFARE Card operation mode

Communication

direction ISO/IEC 14443A/

MIFARE MIFARE Higher transfer speeds

transfer speed 106 kbit/s 212 kbit/s 424 kbit/s

reader/writer 

PN512

Modulation on

reader side

100 % ASK 100 % ASK 100 % ASK

bit coding Modified Miller Modified Miller Modified Miller

Bitlength (128/13.56) s (64/13.56) s (32/13.56) s

PN512 reader/

writer

Modulation on

PN512 side

subcarrier load

modulation

subcarrier load

modulation

subcarrier load

modulation

subcarrier

frequency

13.56 MHz/16 13.56 MHz/16 13.56 MHz/16

bit coding Manchester coding BPSK BPSK

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8.4.6 FeliCa Card operation mode

9. PN512 register SET

9.1 PN512 registers overview

Table 13. FeliCa Card operation mode

Communication

direction FeliCa FeliCa Higher

transfer speeds

Transfer speed 212 kbit/s 424 kbit/s

reader/writer 

PN512

Modulation on reader side 8-30 % ASK 8-30 % ASK

bit coding Manchester Coding Manchester Coding

Bitlength (64/13.56) s (32/13.56) s

PN512 reader/

writer

Load modulation on PN512

side

> 12 % ASK load

modulation

> 12 % ASK load

modulation

bit coding Manchester coding Manchester coding

Table 14. PN512 registers overview

Addr

(hex) Register Name Function

Page 0: Command and Status

0 PageReg Selects the register page

1 CommandReg Starts and stops command execution

2 ComlEnReg Controls bits to enable and disable the passing of Interrupt Requests

3 DivlEnReg Controls bits to enable and disable the passing of Interrupt Requests

4 ComIrqReg Contains Interrupt Request bits

5 DivIrqReg Contains Interrupt Request bits

6 ErrorReg Error bits showing the error status of the last command executed

7 Status1Reg Contains status bits for communication

8 Status2Reg Contains status bits of the receiver and transmitter

9 FIFODataReg In- and output of 64 byte FIFO-buffer

A FIFOLevelReg Indicates the number of bytes stored in the FIFO

B WaterLevelReg Defines the level for FIFO under- and overflow warning

C ControlReg Contains miscellaneous Control Registers

D BitFramingReg Adjustments for bit oriented frames

E CollReg Bit position of the first bit collision detected on the RF-interface

F RFU Reserved for future use

Page 1: Command

0 PageReg Selects the register page

1 ModeReg Defines general modes for transmitting and receiving

2 TxModeReg Defines the data rate and framing during transmission

3 RxModeReg Defines the data rate and framing during receiving

4 TxControlReg Controls the logical behavior of the antenna driver pins TX1 and TX2

5 TxAutoReg Controls the setting of the antenna drivers

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6 TxSelReg Selects the internal sources for the antenna driver

7 RxSelReg Selects internal receiver settings

8 RxThresholdReg Selects thresholds for the bit decoder

9 DemodReg Defines demodulator settings

A FelNFC1Reg Defines the length of the valid range for the receive package

B FelNFC2Reg Defines the length of the valid range for the receive package

C MifNFCReg Controls the communication in ISO/IEC 14443/MIFARE and NFC

target mode at 106 kbit

D ManualRCVReg Allows manual fine tuning of the internal receiver

E TypeBReg Configure the ISO/IEC 14443 type B

F SerialSpeedReg Selects the speed of the serial UART interface

Page 2: CFG

0 PageReg Selects the register page

1 CRCResultReg Shows the actual MSB and LSB values of the CRC calculation

3 GsNOffReg Selects the conductance of the antenna driver pins TX1 and TX2 for

modulation, when the driver is switched off

4 ModWidthReg Controls the setting of the ModWidth

5 TxBitPhaseReg Adjust the TX bit phase at 106 kbit

6 RFCfgReg Configures the receiver gain and RF level

7 GsNOnReg Selects the conductance of the antenna driver pins TX1 and TX2 for

modulation when the drivers are switched on

8 CWGsPReg Selects the conductance of the antenna driver pins TX1 and TX2 for

modulation during times of no modulation

9 ModGsPReg Selects the conductance of the antenna driver pins TX1 and TX2 for

modulation during modulation

A TModeReg

TPrescalerReg

Defines settings for the internal timer

C TReloadReg Describes the 16-bit timer reload value

E TCounterValReg Shows the 16-bit actual timer value

Page 3: TestRegister

0 PageReg selects the register page

1 TestSel1Reg General test signal configuration

2 TestSel2Reg General test signal configuration and PRBS control

3 TestPinEnReg Enables pin output driver on 8-bit parallel bus (Note: For serial

interfaces only)

4TestPin

ValueReg

Defines the values for the 8-bit parallel bus when it is used as I/O bus

5 TestBusReg Shows the status of the internal testbus

6 AutoTestReg Controls the digital selftest

Table 14. PN512 registers overview …continued

Addr

(hex) Register Name Function

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9.1.1 Register bit behavior

Depending on the functionality of a register, the access conditions to the register can vary.

In principle bits with same behavior are grouped in common registers. In Table 15 the

access conditions are described.

7 VersionReg Shows the version

8 AnalogTestReg Controls the pins AUX1 and AUX2

9 TestDAC1Reg Defines the test value for the TestDAC1

A TestDAC2Reg Defines the test value for the TestDAC2

B TestADCReg Shows the actual value of ADC I and Q

C-F RFT Reserved for production tests

Table 14. PN512 registers overview …continued

Addr

(hex) Register Name Function

Table 15. Behavior of register bits and its designation

Abbreviation Behavior Description

r/w read and write These bits can be written and read by the -Controller. Since they

are used only for control means, there content is not influenced by

internal state machines, e.g. the PageSelect-Register may be

written and read by the -Controller. It will also be read by internal

state machines, but never changed by them.

dy dynamic These bits can be written and read by the -Controller.

Nevertheless, they may also be written automatically by internal

state machines, e.g. the Command-Register changes its value

automatically after the execution of the actual command.

r read only These registers hold bits, which value is determined by internal

states only, e.g. the CRCReady bit can not be written from

external but shows internal states.

w write only Reading these registers returns always ZERO.

RFU - These registers are reserved for future use.

In case of a PN512 Version version 2.0 (VersionReg = 82h) a

read access to these registers returns always the value “0”.

Nevertheless this is not guaranteed for future chips versions

where the value is undefined. In case of a write access, it is

recommended to write always the value “0”.

RFT - These registers are reserved for production tests and shall not be

changed.

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9.2 Register description

9.2.1 Page 0: Command and status

9.2.1.1 PageReg

Selects the register page.

9.2.1.2 CommandReg

Starts and stops command execution.

Table 16. PageReg register (address 00h); reset value: 00h, 0000000b

7 6543210

UsePage Select 0 0 0 0 0 PageSelect

Access

Rights

r/w RFU RFU RFU RFU RFU r/w r/w

Table 17. Description of PageReg bits

Bit Symbol Description

7 UsePageSelect Set to logic 1, the value of PageSelect is used as register address A5

and A4. The LSB-bits of the register address are defined by the

address pins or the internal address latch, respectively.

Set to logic 0, the whole content of the internal address latch defines

the register address. The address pins are used as described in

Section 10.1 “Automatic microcontroller interface detection”.

6 to 2 - Reserved for future use.

1 to 0 PageSelect The value of PageSelect is used only if UsePageSelect is set to

logic 1. In this case it specifies the register page (which is A5 and A4

of the register address).

Table 18. CommandReg register (address 01h); reset value: 20h, 00100000b

7 6 5 4 3 2 1 0

0 0 RcvOff Power Down Command

Access

Rights

RFURFUr/w dy dydydydy

Table 19. Description of CommandReg bits

Bit Symbol Description

7 to 6 - Reserved for future use.

5 RcvOff Set to logic 1, the analog part of the receiver is switched off.

4 PowerDown Set to logic 1, Soft Power-down mode is entered.

Set to logic 0, the PN512 starts the wake up procedure. During this

procedure this bit still shows a 1. A 0 indicates that the PN512 is ready

for operations; see Section 16.2 “Soft power-down mode”.

Note: The bit Power Down cannot be set, when the command

SoftReset has been activated.

3 to 0 Command Activates a command according to the Command Code. Reading this

“PN512 command overview”).

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9.2.1.3 CommIEnReg

Control bits to enable and disable the passing of interrupt requests.

Table 20. CommIEnReg register (address 02h); reset value: 80h, 10000000b

7 6 5 4 3 2 1 0

IRqInv TxIEn RxIEn IdleIEn HiAlertIEn LoAlertIEn ErrIEn TimerIEn

Access

Rights

r/w r/w r/w r/w r/w r/w r/w r/w

Table 21. Description of CommIEnReg bits

Bit Symbol Description

7 IRqInv Set to logic 1, the signal on pin IRQ is inverted with respect to bit IRq in the

In combination with bit IRqPushPull in register DivIEnReg, the default value

of 1 ensures, that the output level on pin IRQ is 3-state.

6 TxIEn Allows the transmitter interrupt request (indicated by bit TxIRq) to be

propagated to pin IRQ.

5 RxIEn Allows the receiver interrupt request (indicated by bit RxIRq) to be

propagated to pin IRQ.

4 IdleIEn Allows the idle interrupt request (indicated by bit IdleIRq) to be propagated to

pin IRQ.

3 HiAlertIEn Allows the high alert interrupt request (indicated by bit HiAlertIRq) to be

propagated to pin IRQ.

2 LoAlertIEn Allows the low alert interrupt request (indicated by bit LoAlertIRq) to be

propagated to pin IRQ.

1 ErrIEn Allows the error interrupt request (indicated by bit ErrIRq) to be propagated

to pin IRQ.

0 TimerIEn Allows the timer interrupt request (indicated by bit TimerIRq) to be

propagated to pin IRQ.

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9.2.1.4 DivIEnReg

Control bits to enable and disable the passing of interrupt requests.

Table 22. DivIEnReg register (address 03h); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

IRQPushPull 0 0 SiginActIEn ModeIEn CRCIEn RFOnIEn RFOffIEn

Access

Rights

r/w RFU RFU r/w r/w r/w r/w r/w

Table 23. Description of DivIEnReg bits

Bit Symbol Description

7 IRQPushPull Set to logic 1, the pin IRQ works as standard CMOS output pad.

Set to logic 0, the pin IRQ works as open drain output pad.

6 to 5 - Reserved for future use.

4 SiginActIEn Allows the SIGIN active interrupt request to be propagated to pin IRQ.

3 ModeIEn Allows the mode interrupt request (indicated by bit ModeIRq) to be

propagated to pin IRQ.

2 CRCIEn Allows the CRC interrupt request (indicated by bit CRCIRq) to be

propagated to pin IRQ.

1 RfOnIEn Allows the RF field on interrupt request (indicated by bit RfOnIRq) to

be propagated to pin IRQ.

0 RfOffIEn Allows the RF field off interrupt request (indicated by bit RfOffIRq) to

be propagated to pin IRQ.

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9.2.1.5 CommIRqReg

Contains Interrupt Request bits.

Table 24. CommIRqReg register (address 04h); reset value: 14h, 00010100b

7 6 5 4 3 2 1 0

Set1 TxIRq RxIRq IdleIRq HiAlertIRq LoAlertIRq ErrIRq TimerIRq

Access

Rights

w dydydy dy dy dydy

Table 25. Description of CommIRqReg bits

All bits in the register CommIRqReg shall be cleared by software.

Bit Symbol Description

7 Set1 Set to logic 1, Set1 defines that the marked bits in the register CommIRqReg

are set.

Set to logic 0, Set1 defines, that the marked bits in the register CommIRqReg

are cleared.

6 TxIRq Set to logic 1 immediately after the last bit of the transmitted data was sent out.

5 RxIRq Set to logic 1 when the receiver detects the end of a valid datastream.

If the bit RxNoErr in register RxModeReg is set to logic 1, bit RxIRq is only set

to logic 1 when data bytes are available in the FIFO.

4 IdleIRq Set to logic 1, when a command terminates by itself e.g. when the

CommandReg changes its value from any command to the Idle Command.

If an unknown command is started, the CommandReg changes its content to

the idle state and the bit IdleIRq is set. Starting the Idle Command by the

-Controller does not set bit IdleIRq.

3 HiAlertIRq Set to logic 1, when bit HiAlert in register Status1Reg is set. In opposition to

HiAlert, HiAlertIRq stores this event and can only be reset as indicated by bit

Set1.

2 LoAlertIRq Set to logic 1, when bit LoAlert in register Status1Reg is set. In opposition to

LoAlert, LoAlertIRq stores this event and can only be reset as indicated by bit

Set1.

1 ErrIRq Set to logic 1 if any error bit in the Error Register is set.

0 TimerIRq Set to logic 1 when the timer decrements the TimerValue Register to zero.

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9.2.1.6 DivIRqReg

Contains Interrupt Request bits

Table 26. DivIRqReg register (address 05h); reset value: XXh, 000X00XXb

7 6 5 4 3 2 1 0

Set2 0 0 SiginActIRq ModeIRq CRCIRq RFOnIRq RFOffIRq

Access

Rights

wRFURFU dy dy dy dy dy

Table 27. Description of DivIRqReg bits

All bits in the register DivIRqReg shall be cleared by software.

Bit Symbol Description

7 Set2 Set to logic 1, Set2 defines that the marked bits in the register

DivIRqReg are set.

Set to logic 0, Set2 defines, that the marked bits in the register

DivIRqReg are cleared

6 to 5 - Reserved for future use.

4 SiginActIRq Set to logic 1, when SIGIN is active. See Section 12.6 “S2C interface

support”. This interrupt is set when either a rising or falling signal edge

is detected.

3 ModeIRq Set to logic 1, when the mode has been detected by the Data mode

detector.

Note: The Data mode detector can only be activated by the AutoColl

command and is terminated automatically having detected the

Communication mode.

Note: The Data mode detector is automatically restarted after each RF

Reset.

2 CRCIRq Set to logic 1, when the CRC command is active and all data are

processed.

1 RFOnIRq Set to logic 1, when an external RF field is detected.

0 RFOffIRq Set to logic 1, when a present external RF field is switched off.

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9.2.1.7 ErrorReg

Error bit register showing the error status of the last command executed.

[1] Command execution will clear all error bits except for bit TempErr. A setting by software is impossible.

Table 28. ErrorReg register (address 06h); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

WrErr TempErr RFErr BufferOvfl CollErr CRCErr ParityErr ProtocolErr

Access

Rights

rrrr rrr r

Table 29. Description of ErrorReg bits

Bit Symbol Description

7 WrErr Set to logic 1, when data is written into FIFO by the host controller

during the AutoColl command or MFAuthent command or if data is

written into FIFO by the host controller during the time between

sending the last bit on the RF interface and receiving the last bit on the

RF interface.

6 TempErr[1] Set to logic 1, if the internal temperature sensor detects overheating.

In this case, the antenna drivers are switched off automatically.

5 RFErr Set to logic 1, if in Active Communication mode the counterpart does

not switch on the RF field in time as defined in NFCIP-1 standard.

Note: RFErr is only used in Active Communication mode. The bits

RxFraming or the bits TxFraming has to be set to 01 to enable this

functionality.

4 BufferOvfl Set to logic 1, if the host controller or a PN512’s internal state machine

(e.g. receiver) tries to write data into the FIFO-bufferFIFO-buffer

although the FIFO-buffer is already full.

3 CollErr Set to logic 1, if a bit-collision is detected. It is cleared automatically at

receiver start-up phase. This bit is only valid during the bitwise

anticollision at 106 kbit. During communication schemes at 212 and

424 kbit this bit is always set to logic 1.

2 CRCErr Set to logic 1, if bit RxCRCEn in register RxModeReg is set and the

CRC calculation fails. It is cleared to 0 automatically at receiver

start-up phase.

1 ParityErr Set to logic 1, if the parity check has failed. It is cleared automatically

at receiver start-up phase. Only valid for ISO/IEC 14443A/MIFARE or

NFCIP-1 communication at 106 kbit.

0 ProtocolErr Set to logic 1, if one out of the following cases occur:

•Set to logic 1 if the SOF is incorrect. It is cleared automatically at

receiver start-up phase. The bit is only valid for 106 kbit in Active

and Passive Communication mode.

•If bit DetectSync in register ModeReg is set to logic 1 during

FeliCa communication or active communication with transfer

speeds higher than 106 kbit, the bit ProtocolErr is set to logic 1 in

case of a byte length violation.

•During the AutoColl command, bit ProtocolErr is set to logic 1, if

the bit Initiator in register ControlReg is set to logic 1.

•During the MFAuthent Command, bit ProtocolErr is set to logic 1,

if the number of bytes received in one data stream is incorrect.

•Set to logic 1, if the Miller Decoder detects 2 pulses below the

minimum time according to the ISO/IEC 14443A definitions.

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9.2.1.8 Status1Reg

Contains status bits of the CRC, Interrupt and FIFO-buffer.

Table 30. Status1Reg register (address 07h); reset value: XXh, X100X01Xb

7 6 5 4 3 2 1 0

RFFreqOK CRCOk CRCReady IRq TRunning RFOn HiAlert LoAlert

Access

Rights

rrrrrrrr

Table 31. Description of Status1Reg bits

Bit Symbol Description

7 RFFreqOK Indicates if the frequency detected at the RX pin is in the range of

13.56 MHz.

Set to logic 1, if the frequency at the RX pin is in the range

12 MHz < RX pin frequency < 15 MHz.

Note: The value of RFFreqOK is not defined if the external RF

frequency is in the range from 9 to 12 MHz or in the range from

15 to 19 MHz.

6 CRCOk Set to logic 1, if the CRC Result is zero. For data transmission and

reception the bit CRCOk is undefined (use CRCErr in register

ErrorReg). CRCOk indicates the status of the CRC co-processor,

during calculation the value changes to ZERO, when the calculation is

done correctly, the value changes to ONE.

5 CRCReady Set to logic 1, when the CRC calculation has finished. This bit is only

valid for the CRC co-processor calculation using the command

CalcCRC.

4 IRq This bit shows, if any interrupt source requests attention (with respect

to the setting of the interrupt enable bits, see register CommIEnReg

and DivIEnReg).

3 TRunning Set to logic 1, if the PN512’s timer unit is running, e.g. the timer will

decrement the TCounterValReg with the next timer clock.

Note: In the gated mode the bit TRunning is set to logic 1, when the

timer is enabled by the register bits. This bit is not influenced by the

gated signal.

2 RFOn Set to logic 1, if an external RF field is detected. This bit does not store

the state of the RF field.

1 HiAlert Set to logic 1, when the number of bytes stored in the FIFO-buffer

fulfills the following equation:

Example:

FIFOLength = 60, WaterLevel = 4 HiAlert = 1

FIFOLength = 59, WaterLevel = 4 HiAlert = 0

0 LoAlert Set to logic 1, when the number of bytes stored in the FIFO-buffer

fulfills the following equation:

Example:

FIFOLength = 4, WaterLevel = 4 LoAlert = 1

FIFOLength = 5, WaterLevel = 4 LoAlert = 0

HiAlert 64 FIFOLength– WaterLevel=

LoAlert FIFOLength WaterLevel=

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9.2.1.9 Status2Reg

Contains status bits of the Receiver, Transmitter and Data mode detector.

Table 32. Status2Reg register (address 08h); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

TempSensClear I2CForceHS 0 TargetActivated MFCrypto1On Modem State

Access

Rights

r/w r/w RFU dy dy r r r

Table 33. Description of Status2Reg bits

Bit Symbol Description

7 TempSensClear Set to logic 1, this bit clears the temperature error, if the temperature

is below the alarm limit of 125 C.

2CForceHS I2C input filter settings. Set to logic 1, the I2C input filter is set to the

High-speed mode independent of the I2C protocol. Set to logic 0, the

I2C input filter is set to the used I2C protocol.

5 - Reserved for future use.

4 TargetActivated Set to logic 1 if the Select command or if the Polling command was

answered. Note: This bit can only be set during the AutoColl

command in Passive Communication mode.

Note: This bit is cleared automatically by switching off the external

RF field.

3 MFCrypto1On This bit indicates that the MIFARE Crypto1 unit is switched on and

therefore all data communication with the card is encrypted.

This bit can only be set to logic 1 by a successful execution of the

MFAuthent Command. This bit is only valid in Reader/Writer mode

for MIFARE cards. This bit shall be cleared by software.

2 to 0 Modem State ModemState shows the state of the transmitter and receiver state

machines.

Value Description

000 IDLE

001 Wait for StartSend in register BitFramingReg

010 TxWait: Wait until RF field is present, if the bit TxWaitRF is

set to logic 1. The minimum time for TxWait is defined by the

TxWaitReg register.

011 Sending

100 RxWait: Wait until RF field is present, if the bit RxWaitRF is

set to logic 1. The minimum time for RxWait is defined by the

RxWaitReg register.

101 Wait for data

110 Receiving

Product data sheet

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NXP Semiconductors PN512

Transmission module

9.2.1.10 FIFODataReg

In- and output of 64 byte FIFO-buffer.

9.2.1.11 FIFOLevelReg

Indicates the number of bytes stored in the FIFO.

Table 34. FIFODataReg register (address 09h); reset value: XXh, XXXXXXXXb

7 6 5 4 3 2 1 0

FIFOData

Access

Rights

dy dy dy dy dy dy dy dy

Table 35. Description of FIFODataReg bits

Bit Symbol Description

7 to 0 FIFOData Data input and output port for the internal 64 byte FIFO-buffer. The

FIFO-buffer acts as parallel in/parallel out converter for all serial data

stream in- and outputs.

Table 36. FIFOLevelReg register (address 0Ah); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

FlushBuffer FIFOLevel

Access

Rights

w rrrrrrr

Table 37. Description of FIFOLevelReg bits

Bit Symbol Description

7 FlushBuffer Set to logic 1, this bit clears the internal FIFO-buffer’s read- and

write-pointer and the bit BufferOvfl in the register ErrReg immediately.

Reading this bit will always return 0.

6 to 0 FIFOLevel Indicates the number of bytes stored in the FIFO-buffer. Writing to the

FIFODataReg increments, reading decrements the FIFOLevel.

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9.2.1.12 WaterLevelReg

Defines the level for FIFO under- and overflow warning.

9.2.1.13 ControlReg

Miscellaneous control bits.

Table 38. WaterLevelReg register (address 0Bh); reset value: 08h, 00001000b

7 6 5 4 3 2 1 0

0 0 WaterLevel

Access

Rights

RFU RFU r/w r/w r/w r/w r/w r/w

Table 39. Description of WaterLevelReg bits

Bit Symbol Description

7 to 6 - Reserved for future use.

5 to 0 WaterLevel This register defines a warning level to indicate a FIFO-buffer over- or

underflow:

The bit HiAlert in Status1Reg is set to logic 1, if the remaining number

of bytes in the FIFO-buffer space is equal or less than the defined

number of WaterLevel bytes.

The bit LoAlert in Status1Reg is set to logic 1, if equal or less than

WaterLevel bytes are in the FIFO.

Note: For the calculation of HiAlert and LoAlert see Table 30

Table 40. ControlReg register (address 0Ch); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

TStopNow TStartNow WrNFCIDtoFIFO Initiator 0 RxLastBits

Access

Rights

w w dy r/wRFUrrr

Table 41. Description of ControlReg bits

Bit Symbol Description

7 TStopNow Set to logic 1, the timer stops immediately.

Reading this bit will always return 0.

6 TStartNow Set to logic 1 starts the timer immediately.

Reading this bit will always return 0.

5 WrNFCIDtoFIFO Set to logic 1, the internal stored NFCID (10 bytes) is copied into the

FIFO.

Afterwards the bit is cleared automatically

4 Initiator Set to logic 1, the PN512 acts as initiator, otherwise it acts as target

3 - Reserved for future use.

2 to 0 RxLastBits Shows the number of valid bits in the last received byte. If zero, the

whole byte is valid.

Product data sheet

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Transmission module

9.2.1.14 BitFramingReg

Adjustments for bit oriented frames.

Table 42. BitFramingReg register (address 0Dh); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

StartSend RxAlign 0 TxLastBits

Access

Rights

w r/w r/w r/w RFU r/w r/w r/w

Table 43. Description of BitFramingReg bits

Bit Symbol Description

7 StartSend Set to logic 1, the transmission of data starts.

This bit is only valid in combination with the Transceive command.

6 to 4 RxAlign Used for reception of bit oriented frames: RxAlign defines the bit position

for the first bit received to be stored in the FIFO. Further received bits are

stored at the following bit positions.

Example:

RxAlign = 0: the LSB of the received bit is stored at bit 0, the second

received bit is stored at bit position 1.

RxAlign = 1: the LSB of the received bit is stored at bit 1, the second

received bit is stored at bit position 2.

RxAlign = 7: the LSB of the received bit is stored at bit 7, the second

received bit is stored in the following byte at bit position 0.

This bit shall only be used for bitwise anticollision at 106 kbit/s in Passive

Communication mode. In all other modes it shall be set to logic 0.

3 - Reserved for future use.

2 to 0 TxLastBits Used for transmission of bit oriented frames: TxLastBits defines the

number of bits of the last byte that shall be transmitted. A 000 indicates

that all bits of the last byte shall be transmitted.

Product data sheet

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NXP Semiconductors PN512

Transmission module

9.2.1.15 CollReg

Defines the first bit collision detected on the RF interface.

Table 44. CollReg register (address 0Eh); reset value: XXh, 101XXXXXb

7 6 5 4 3 2 1 0

Values

AfterColl

0CollPos

NotValid

CollPos

Access

Rights

r/wRFUrrrrrr

Table 45. Description of CollReg bits

Bit Symbol Description

7 ValuesAfterColl If this bit is set to logic 0, all receiving bits will be cleared after a

collision. This bit shall only be used during bitwise anticollision at

106 kbit, otherwise it shall be set to logic 1.

6 - Reserved for future use.

5 CollPosNotValid Set to logic 1, if no Collision is detected or the Position of the

Collision is out of the range of bits CollPos. This bit shall only be

interpreted in Passive Communication mode at 106 kbit or

ISO/IEC 14443A/MIFARE Reader/Writer mode.

4 to 0 CollPos These bits show the bit position of the first detected collision in a

received frame, only data bits are interpreted.

Example:

00h indicates a bit collision in the 32th bit

01h indicates a bit collision in the 1st bit

08h indicates a bit collision in the 8th bit

These bits shall only be interpreted in Passive Communication mode

at 106 kbit or ISO/IEC 14443A/MIFARE Reader/Writer mode if bit

CollPosNotValid is set to logic 0.

Product data sheet

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NXP Semiconductors PN512

Transmission module

9.2.2 Page 1: Communication

9.2.2.1 PageReg

Selects the register page.

Table 46. PageReg register (address 10h); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

UsePage Select00000 PageSelect

Access

Rights

r/w RFU RFU RFU RFU RFU r/w r/w

Table 47. Description of PageReg bits

Bit Symbol Description

7 UsePage Select Set to logic 1, the value of PageSelect is used as register address A5

and A4. The LSB-bits of the register address are defined by the

address pins or the internal address latch, respectively.

Set to logic 0, the whole content of the internal address latch defines

the register address. The address pins are used as described in

Section 10.1 “Automatic microcontroller interface detection”.

6 to 2 - Reserved for future use.

1 to 0 PageSelect The value of PageSelect is used only, if UsePageSelect is set to

logic 1. In this case it specifies the register page (which is A5 and A4

of the register address).

Product data sheet

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NXP Semiconductors PN512

Transmission module

9.2.2.2 ModeReg

Defines general mode settings for transmitting and receiving.

Table 48. ModeReg register (address 11h); reset value: 3Bh, 00111011b

7 6 5 4 3 2 1 0

MSBFirst Detect Sync TxWaitRF RxWaitRF PolSigin ModeDetOff CRCPreset

Access

Rights

r/w r/w r/w r/w r/w r/w r/w r/w

Table 49. Description of ModeReg bits

Bit Symbol Description

7 MSBFirst Set to logic 1, the CRC co-processor calculates the CRC with MSB

first and the CRCResultMSB and the CRCResultLSB in the

CRCResultReg register are bit reversed.

Note: During RF communication this bit is ignored.

6 Detect Sync If set to logic 1, the contactless UART waits for the value F0h before

the receiver is activated and F0h is added as a Sync-byte for

transmission.

This bit is only valid for 106 kbit during NFCIP-1 data exchange

protocol.

In all other modes it shall be set to logic 0.

5 TxWaitRF Set to logic 1 the transmitter in reader/writer or initiator mode for

NFCIP-1 can only be started, if an RF field is generated.

4 RxWaitRF Set to logic 1, the counter for RxWait starts only if an external RF field

is detected in Target mode for NFCIP-1 or in Card Communication

mode.

3 PolSigin PolSigin defines the polarity of the SIGIN pin. Set to logic 1, the

polarity of SIGIN pin is active high. Set to logic 0 the polarity of SIGIN

pin is active low.

Note: The internal envelope signal is coded active low.

Note: Changing this bit will generate a SiginActIRq event.

2 ModeDetOff Set to logic 1, the internal mode detector is switched off.

Note: The mode detector is only active during the AutoColl command.

1 to 0 CRCPreset Defines the preset value for the CRC co-processor for the command

CalCRC.

Note: During any communication, the preset values is selected

automatically according to the definition in the bits RxMode and

TxMode.

Value Description

00 0000

01 6363

10 A671

11 FFFF

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Transmission module

9.2.2.3 TxModeReg

Defines the data rate and framing during transmission.

Table 50. TxModeReg register (address 12h); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

TxCRCEn TxSpeed InvMod TxMix TxFraming

Access

Rights

r/w dy dy dy r/w r/w dy dy

Table 51. Description of TxModeReg bits

Bit Symbol Description

7 TxCRCEn Set to logic 1, this bit enables the CRC generation during data

transmission.

Note: This bit shall only be set to logic 0 at 106 kbit.

6 to 4 TxSpeed Defines the bit rate while data transmission.

Value Description

000 106 kbit

001 212 kbit

010 424 kbit

011 848 kbit

100 1696 kbit

101 3392 kbit

110 Reserved

111 Reserved

Note: The bit coding for transfer speeds above 424 kbit is equivalent to

the bit coding of Active Communication mode 424 kbit (Ecma 340).

3 InvMod Set to logic 1, the modulation for transmitting data is inverted.

2 TxMix Set to logic 1, the signal at pin SIGIN is mixed with the internal coder

(see Section 12.6 “S2C interface support”).

1 to 0 TxFraming Defines the framing used for data transmission.

Value Description

00 ISO/IEC 14443A/MIFARE and Passive Communication mode

106 kbit

01 Active Communication mode

10 FeliCa and Passive communication mode 212 and 424 kbit

11 ISO/IEC 14443B

Product data sheet

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Transmission module

9.2.2.4 RxModeReg

Defines the data rate and framing during reception.

Table 52. RxModeReg register (address 13h); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

RxCRCEn RxSpeed RxNoErr RxMultiple RxFraming

Access

Rights

r/w dydydyr/w r/w dy dy

Table 53. Description of RxModeReg bits

Bit Symbol Description

7 RxCRCEn Set to logic 1, this bit enables the CRC calculation during reception.

Note: This bit shall only be set to logic 0 at 106 kbit.

6 to 4 RxSpeed Defines the bit rate while data transmission.

The PN512’s analog part handles only transfer speeds up to 424 kbit

internally, the digital UART handles the higher transfer speeds as well.

Value Description

000 106 kbit

001 212 kbit

010 424 kbit

011 848 kbit

100 1696 kbit

101 3392 kbit

110 Reserved

111 Reserved

Note: The bit coding for transfer speeds above 424 kbit is equivalent to

the bit coding of Active Communication mode 424 kbit (Ecma 340).

3 RxNoErr If set to logic 1 a not valid received data stream (less than 4 bits

received) will be ignored. The receiver will remain active.

For ISO/IEC14443B also RxSOFReq logic 1 is required to ignore a non

valid datastream.

2 RxMultiple Set to logic 0, the receiver is deactivated after receiving a data frame.

Set to logic 1, it is possible to receive more than one data frame. Having

set this bit, the receive and transceive commands will not terminate

automatically. In this case the multiple receiving can only be deactivated

by writing any command (except the Receive command) to the

CommandReg register or by clearing the bit by the host controller.

At the end of a received data stream an error byte is added to the FIFO.

The error byte is a copy of the ErrorReg register.

The behaviour for version 1.0 is described in Section 21 “Errata sheet”

on page 106.

Product data sheet

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Transmission module

9.2.2.5 TxControlReg

Controls the logical behavior of the antenna driver pins Tx1 and Tx2.

1 to 0 RxFraming Defines the expected framing for data reception.

Value Description

00 ISO/IEC 14443A/MIFARE and Passive Communication

mode 106 kbit

01 Active Communication mode

10 FeliCa and Passive Communication mode 212 and 424 kbit

11 ISO/IEC 14443B

Table 53. Description of RxModeReg bits

Bit Symbol Description

Table 54. TxControlReg register (address 14h); reset value: 80h, 10000000b

7 6 5 4 3 2 1 0

InvTx2RF

InvTx1RF

InvTx2RF

Off

InvTx1RF

Off

Tx2CW CheckRF Tx2RF

Tx1RF

Access

Rights

r/w r/w r/w r/w r/w w r/w r/w

Table 55. Description of TxControlReg bits

Bit Symbol Description

7 InvTx2RFOn Set to logic 1, the output signal at pin TX2 will be inverted, if driver TX2

is enabled.

6 InvTx1RFOn Set to logic 1, the output signal at pin TX1 will be inverted, if driver TX1

is enabled.

5 InvTx2RFOff Set to logic 1, the output signal at pin TX2 will be inverted, if driver TX2

is disabled.

4 InvTx1RFOff Set to logic 1, the output signal at pin TX1 will be inverted, if driver TX1

is disabled.

3 Tx2CW Set to logic 1, the output signal on pin TX2 will deliver continuously the

un-modulated 13.56 MHz energy carrier.

Set to logic 0, Tx2CW is enabled to modulate the 13.56 MHz energy

carrier.

2 CheckRF Set to logic 1, Tx2RFEn and Tx1RFEn can not be set if an external RF

field is detected. Only valid when using in combination with bit

Tx2RFEn or Tx1RFEn

1 Tx2RFEn Set to logic 1, the output signal on pin TX2 will deliver the 13.56 MHz

energy carrier modulated by the transmission data.

0 Tx1RFEn Set to logic 1, the output signal on pin TX1 will deliver the 13.56 MHz

energy carrier modulated by the transmission data.

Product data sheet

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Transmission module

9.2.2.6 TxAutoReg

Controls the settings of the antenna driver.

Table 56. TxAutoReg register (address 15h); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

AutoRF

OFF

Force100

ASK

Auto

WakeUp

0 CAOn InitialRF

Tx2RFAut

oEn

Tx1RFAuto

Access

Rights

r/w r/w r/w RFU r/w r/w r/w r/w

Table 57. Description of TxAutoReg bits

Bit Symbol Description

7 AutoRFOFF Set to logic 1, all active antenna drivers are switched off after the last

data bit has been transmitted as defined in the NFCIP-1.

6 Force100ASK Set to logic 1, Force100ASK forces a 100% ASK modulation

independent of the setting in register ModGsPReg.

5 AutoWakeUp Set to logic 1, the PN512 in soft Power-down mode will be started by

the RF level detector.

4 - Reserved for future use.

3 CAOn Set to logic 1, the collision avoidance is activated and internally the

value n is set in accordance to the NFCIP-1 Standard.

2 InitialRFOn Set to logic 1, the initial RF collision avoidance is performed and the bit

InitialRFOn is cleared automatically, if the RF is switched on.

Note: The driver, which should be switched on, has to be enabled by

bit Tx2RFAutoEn or bit Tx1RFAutoEn.

1 Tx2RFAutoEn Set to logic 1, the driver Tx2 is switched on after the external RF field

is switched off according to the time TADT. If the bits InitialRFOn and

Tx2RFAutoEn are set to logic 1, Tx2 is switched on if no external RF

field is detected during the time TIDT.

Note: The times TADT and TIDT are defined in the NFC IP-1 standard

(ISO/IEC 18092).

0 Tx1RFAutoEn Set to logic 1, the driver Tx1 is switched on after the external RF field

is switched off according to the time TADT. If the bit InitialRFOn and

Tx1RFAutoEn are set to logic 1, Tx1 is switched on if no external RF

field is detected during the time TIDT.

Note: The times TADT and TIDT are defined in the NFC IP-1 standard

(ISO/IEC 18092).

Product data sheet

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NXP Semiconductors PN512

Transmission module

9.2.2.7 TxSelReg

Selects the sources for the analog part.

Table 58. TxSelReg register (address 16h); reset value: 10h, 00010000b

7 6 5 4 3 2 1 0

0 0 DriverSel SigOutSel

Access

Rights

RFU RFU r/w r/w r/w r/w r/w r/w

Table 59. Description of TxSelReg bits

Bit Symbol Description

7 to 6 - Reserved for future use.

5 to 4 DriverSel Selects the input of driver Tx1 and Tx2.

Value Description

00 Tristate

Note: In soft power down the drivers are only in Tristate mode

if DriverSel is set to Tristate mode.

01 Modulation signal (envelope) from the internal coder

10 Modulation signal (envelope) from SIGIN

11 HIGH

Note: The HIGH level depends on the setting of InvTx1RFOn/

InvTx1RFOff and InvTx2RFOn/InvTx2RFOff.

Product data sheet

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Transmission module

3 to 0 SigOutSel Selects the input for the SIGOUT Pin.

Value Description

0000 Tristate

0001 Low

0010 High

0011 TestBus signal as defined by bit TestBusBitSel in register

TestSel1Reg.

0100 Modulation signal (envelope) from the internal coder

0101 Serial data stream to be transmitted

0110 Output signal of the receiver circuit (card modulation signal

regenerated and delayed). This signal is used as data output

signal for SAM interface connection using 3 lines.

Note: To have a valid signal the PN512 has to be set to the

receiving mode by either the Transceive or Receive

command. The bit RxMultiple can be used to keep the PN512

in receiving mode.

Note: Do not use this setting in MIFARE mode. Manchester

coding as data collisions will not be transmitted on the

SIGOUT line.

0111 Serial data stream received.

Note: Do not use this setting in MIFARE mode. Miller coding

parameters as the bit length can vary.

1000-1011 FeliCa Sam modulation

1000 RX*

1001 TX

1010 Demodulator comparator output

1011 RFU

Note: * To have a valid signal the PN512 has to be set to the

receiving mode by either the Transceive or Receive

command. The bit RxMultiple can be used to keep the PN512

in receiving mode.

1100-1111 MIFARE Sam modulation

1100 RX* with RF carrier

1101 TX with RF carrier

1110 RX with RF carrier un-filtered

1111 RX envelope un-filtered

Note: *To have a valid signal the PN512 has to be set to the

receiving mode by either the Transceive or Receive

command. The bit RxMultiple can be used to keep the PN512

in receiving mode.

Table 59. Description of TxSelReg bits …continued

Bit Symbol Description

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Transmission module

9.2.2.8 RxSelReg

Selects internal receiver settings.

9.2.2.9 RxThresholdReg

Selects thresholds for the bit decoder.

Table 60. RxSelReg register (address 17h); reset value: 84h, 10000100b

7 6 5 4 3 2 1 0

UartSel RxWait

Access

Rights

r/w r/w r/w r/w r/w r/w r/w r/w

Table 61. Description of RxSelReg bits

Bit Symbol Description

7 to 6 UartSel Selects the input of the contactless UART

Value Description

00 Constant Low

01 Envelope signal at SIGIN

10 Modulation signal from the internal analog part

11 Modulation signal from SIGIN pin. Only valid for transfer

speeds above 424 kbit

5 to 0 RxWait After data transmission, the activation of the receiver is delayed for

RxWait bit-clocks. During this ‘frame guard time’ any signal at pin RX

is ignored. This parameter is ignored by the Receive command. All

other commands (e.g. Transceive, Autocoll, MFAuthent) use this

parameter. Depending on the mode of the PN512, the counter starts

different. In Passive Communication mode the counter starts with the

last modulation pulse of the transmitted data stream. In Active

Communication mode the counter starts immediately after the external

RF field is switched on.

Table 62. RxThresholdReg register (address 18h); reset value: 84h, 10000100b

7 6 5 4 3 2 1 0

MinLevel 0 CollLevel

Access

Rights

r/w r/w r/w r/w RFU r/w r/w r/w

Table 63. Description of RxThresholdReg bits

Bit Symbol Description

7 to 4 MinLevel Defines the minimum signal strength at the decoder input that shall be

accepted. If the signal strength is below this level, it is not evaluated.

3 - Reserved for future use.

2 to 0 CollLevel Defines the minimum signal strength at the decoder input that has to be

reached by the weaker half-bit of the Manchester-coded signal to

generate a bit-collision relatively to the amplitude of the stronger half-bit.

Product data sheet

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Transmission module

9.2.2.10 DemodReg

Defines demodulator settings.

Table 64. DemodReg register (address 19h); reset value: 4Dh, 01001101b

7 6 5 4 3 2 1 0

AddIQ FixIQ TPrescal

Even

TauRcv TauSync

Access

Rights

r/w r/w r/w r/w r/w r/w r/w r/w

Table 65. Description of DemodReg bits

Bit Symbol Description

7 to 6 AddIQ Defines the use of I and Q channel during reception

Note: FixIQ has to be set to logic 0 to

enable the following settings.

Value Description

00 Select the stronger channel

01 Select the stronger and freeze the selected during communication

10 combines the I and Q channel

11 Reserved

5 FixIQ If set to logic 1 and the bits of AddIQ are set to X0, the reception is fixed to

I channel.

If set to logic 1 and the bits of AddIQ are set to X1, the reception is fixed to

Q channel.

NOTE: If SIGIN/SIGOUT is used as S2C interface FixIQ set to 1 and AddIQ

set to X0 is rewired.

4 TPrescalE

ven

If set to logic 0 the following formula is used to calculate fTimer of the

prescaler:

fTimer = 13.56 MHz / (2 * TPreScaler + 1).

If set to logic 1 the following formula is used to calculate fTimer of the

prescaler:

fTimer = 13.56 MHz / (2 * TPreScaler + 2).

(Default TPrescalEven is logic 0)

The behaviour for the version 1.0 is described in Section 21 “Errata

sheet” on page 106.

3 to 2 TauRcv Changes the time constant of the internal during data reception.

Note: If set to 00, the PLL is frozen during data reception.

1 to 0 TauSync Changes the time constant of the internal PLL during burst.

Product data sheet

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Transmission module

9.2.2.11 FelNFC1Reg

Defines the length of the FeliCa Sync bytes and the minimum length of the received

packet.

Table 66. FelNFC1Reg register (address 1Ah); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

FelSyncLen DataLenMin

Access

Rights

r/w r/w r/w r/w r/w r/w r/w r/w

Table 67. Description of FelNFC1Reg bits

Bit Symbol Description

7 to 6 FelSyncLen Defines the length of the Sync bytes.

Value Sync- bytes in hex

00 B2 4D

01 00 B2 4D

10 00 00 B2 4D

11 00 00 00 B2 4D

5 to 0 DataLenMin These bits define the minimum length of the accepted packet length:

DataLenMin * 4  data packet length

This parameter is ignored at 106 kbit if the bit DetectSync in register

ModeReg is set to logic 0. If a received data packet is shorter than the

defined DataLenMin value, the data packet will be ignored.

Product data sheet

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9.2.2.12 FelNFC2Reg

Defines the maximum length of the received packet.

Table 68. FelNFC2Reg register (address1Bh); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

WaitForSelected ShortTimeSlot DataLenMax

Access

Rights

r/w r/w r/w r/w r/w r/w r/w r/w

Table 69. Description of FelNFC2Reg bits

Bit Symbol Description

7 WaitForSelected Set to logic 1, the AutoColl command is only terminated

automatically when:

1. A valid command has been received after performing a valid

Select procedure according ISO/IEC 14443A.

2. A valid command has been received after performing a valid

Polling procedure according to the FeliCa specification.

Note: If this bit is set, no active communication is possible.

Note: Setting this bit reduces the host controller interaction in case

of a communication to another device in the same RF field during

Passive Communication mode.

6 ShortTimeSlot Defines the time slot length for Passive Communication mode at

424 kbit. Set to logic 1 a short time slot is used (half of the timeslot

at 212 kbit). Set to logic 0 a long timeslot is used (equal to the

timeslot for 212 kbit).

5 to 0 DataLenMax These bits define the maximum length of the accepted packet

length: DataLenMax * 4  data packet length

Note: If set to logic 0 the maximum data length is 256 bytes.

This parameter is ignored at 106 kbit if the bit DetectSync in

than the defined DataLenMax value, the packet will be ignored.

Product data sheet

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Transmission module

9.2.2.13 MifNFCReg

Defines ISO/IEC 14443A/MIFARE/NFC specific settings in target or Card Operating

mode.

Table 70. MifNFCReg register (address 1Ch); reset value: 62h, 01100010b

7 6 5 4 3 2 1 0

SensMiller TauMiller MFHalted TxWait

Access

Rights

r/w r/w r/w r/w r/w r/w r/w r/w

Table 71. Description of MifNFCReg bits

Bit Symbol Description

7 to 5 SensMiller These bits define the sensitivity of the Miller decoder.

4 to 3 TauMiller These bits define the time constant of the Miller decoder.

2 MFHalted Set to logic 1, this bit indicates that the PN512 is set to HALT mode in

Card Operation mode at 106 kbit. This bit is either set by the host

controller or by the internal state machine and indicates that only the

code 52h is accepted as a request command. This bit is cleared

automatically by a RF reset.

1 to 0 TxWait These bits define the additional response time for the target at 106 kbit

in Passive Communication mode and during the AutoColl command.

Per default 7 bits are added to the value of the register bit.

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9.2.2.14 ManualRCVReg

Allows manual fine tuning of the internal receiver.

Remark: For standard applications it is not recommended to change this register settings.

Table 72. ManualRCVReg register (address 1Dh); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

0FastFilt

MF_SO

Delay

MF_SO

Parity

Disable

LargeBW

PLL

Manual

HPCF

HPFC

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Table 73. Description of ManualRCVReg bits

Bit Symbol Description

7 - Reserved for future use.

6FastFilt

MF_SO

If this bit is set to logic 1, the internal filter for the Miller-Delay Circuit is

set to Fast mode.

Note: This bit should only set to logic 1, if Millerpulses of less than

400 ns Pulse length are expected. At 106 kBaud the typical value is

3us.

5 Delay MF_SO If this bit is set to logic 1, the Signal at SIGOUT-pin is delayed, so that

in SAM mode the Signal at SIGIN must be 128/fc faster compared to

the ISO/IEC 14443A, to reach the ISO/IEC 14443A restrictions on the

RF-Field.

Note: This delay shall only be activated for setting bits SigOutSel to

(1110b) or (1111b) in register TxSelReg.

4 Parity Disable If this bit is set to logic 1, the generation of the Parity bit for

transmission and the Parity-Check for receiving is switched off. The

received Parity bit is handled like a data bit.

3 LargeBWPLL Set to logic 1, the bandwidth of the internal PLL used for clock

recovery is extended.

2 ManualHPCF Set to logic 0, the HPCF bits are ignored and the HPCF settings are

adapted automatically to the receiving mode. Set to logic 1, values of

HPCF are valid.

1 to 0 HPFC Selects the High Pass Corner Frequency (HPCF) of the filter in the

internal receiver chain

00 For signals with frequency spectrum down to 106 kHz.

01 For signals with frequency spectrum down to 212 kHz.

10 For signals with frequency spectrum down to 424 kHz.

11 For signals with frequency spectrum down to 848 kHz

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9.2.2.15 TypeBReg

9.2.2.16 SerialSpeedReg

Selects the speed of the serial UART interface.

Table 74. TypeBReg register (address 1Eh); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

RxSOF

Req

RxEOF

Req

0EOFSO

FWidth

NoTxSOF NoTxEOF TxEGT

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Table 75. Description of TypeBReg bits

Bit Symbol Description

7 RxSOFReq If this bit is set to logic 1, the SOF is required. A datastream starting

without SOF is ignored.

If this bit is cleared, a datastream with and without SOF is accepted.

The SOF will be removed and not written into the FIFO.

6 RxEOFReq If this bit is set to logic 1, the EOF is required. A datastream ending

without EOF will generate a Protocol-Error. If this bit is cleared, a

datastream with and without EOF is accepted. The EOF will be

removed and not written into the FIFO.

For the behaviour in version 1.0, see Section 21 “Errata sheet” on

page 106.

5 - Reserved for future use.

4 EOFSOFWidth If this bit is set to logic 1 and EOFSOFAdjust bit is logic 0, the SOF

and EOF will have the maximum length defined in ISO/IEC 14443B.

If this bit is cleared and EOFSOFAdjust bit is logic 0, the SOF and

EOF will have the minimum length defined in ISO/IEC 14443B.

If this bit is set to 1 and the EOFSOFadjust bit is logic 1 will result in

SOF low = (11etu  8 cycles)/fc

SOF high = (2 etu + 8 cycles)/fc

EOF low = (11 etu  8 cycles)/fc

If this bit is set to 0 and the EOFSOFAdjust bit is logic 1 will result in

an incorrect system behavior in respect to ISO specification.

For the behaviour in version 1.0, see Section 21 “Errata sheet” on

page 106.

3 NoTxSOF If this bit is set to logic 1, the generation of the SOF is suppressed.

2 NoTxEOF If this bit is set to logic 1, the generation of the EOF is suppressed.

1 to 0 TxEGT These bits define the length of the EGT.

Value Description

00 0 bit

01 1 bit

10 2 bits

11 3 bits

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Table 76. SerialSpeedReg register (address 1Fh); reset value: EBh, 11101011b

7 6 5 4 3 2 1 0

BR_T0 BR_T1

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Table 77. Description of SerialSpeedReg bits

Bit Symbol Description

7 to 5 BR_T0 Factor BR_T0 to adjust the transfer speed, for description see Section

10.3.2 “Selectable UART transfer speeds”.

3 to 0 BR_T1 Factor BR_T1 to adjust the transfer speed, for description see Section

10.3.2 “Selectable UART transfer speeds”.

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9.2.3 Page 2: Configuration

9.2.3.1 PageReg

Selects the register page.

9.2.3.2 CRCResultReg

Shows the actual MSB and LSB values of the CRC calculation.

Note: The CRC is split into two 8-bit register.

Note: Setting the bit MSBFirst in ModeReg register reverses the bit order, the byte order is

not changed.

Table 78. PageReg register (address 20h); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

UsePageSelect 0 0 0 0 0 PageSelect

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Table 79. Description of PageReg bits

Bit Symbol Description

7 UsePageSelect Set to logic 1, the value of PageSelect is used as register address A5

and A4. The LSB-bits of the register address are defined by the

address pins or the internal address latch, respectively.

Set to logic 0, the whole content of the internal address latch defines

the register address. The address pins are used as described in

Section 10.1 “Automatic microcontroller interface detection”.

6 to 2 - Reserved for future use.

1 to 0 PageSelect The value of PageSelect is used only if UsePageSelect is set to

logic 1. In this case, it specifies the register page (which is A5 and

A4of the register address).

Table 80. CRCResultReg register (address 21h); reset value: FFh, 11111111b

76543210

CRCResultMSB

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Table 81. Description of CRCResultReg bits

Bit Symbol Description

7 to 0 CRCResultMSB This register shows the actual value of the most significant byte of

the CRCResultReg register. It is valid only if bit CRCReady in

Table 82. CRCResultReg register (address 22h); reset value: FFh, 11111111b

76543210

CRCResultLSB

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Table 83. Description of CRCResultReg bits

Bit Symbol Description

7 to 0 CRCResultLSB This register shows the actual value of the least significant byte of

the CRCResult register. It is valid only if bit CRCReady in register

Status1Reg is set to logic 1.

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9.2.3.3 GsNOffReg

Selects the conductance for the N-driver of the antenna driver pins TX1 and TX2 when the

driver is switched off.

Table 84. GsNOffReg register (address 23h); reset value: 88h, 10001000b

7 6 5 4 3 2 1 0

CWGsNOff ModGsNOff

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Table 85. Description of GsNOffReg bits

Bit Symbol Description

7 to 4 CWGsNOff The value of this register defines the conductance of the output

N-driver during times of no modulation.

Note: The conductance value is binary weighted.

Note: During soft Power-down mode the highest bit is forced to 1.

Note: The value of the register is only used if the driver is switched

off. Otherwise the bit value CWGsNOn of register GsNOnReg is

used.

Note: This value is used for LoadModulation.

3 to 0 ModGsNOff The value of this register defines the conductance of the output

N-driver for the time of modulation. This may be used to regulate the

modulation index.

Note: The conductance value is binary weighted.

Note: During soft Power-down mode the highest bit is forced to 1.

Note: The value of the register is only used if the driver is switched

off. Otherwise the bit value ModGsNOn of register GsNOnReg is

used

Note: This value is used for LoadModulation.

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9.2.3.4 ModWidthReg

Controls the modulation width settings.

9.2.3.5 TxBitPhaseReg

Adjust the bitphase at 106 kbit during transmission.

Table 86. ModWidthReg register (address 24h); reset value: 26h, 00100110b

7 6 5 4 3 2 1 0

ModWidth

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Table 87. Description of ModWidthReg bits

Bit Symbol Description

7 to 0 ModWidth These bits define the width of the Miller modulation as initiator in Active

and Passive Communication mode as multiples of the carrier

frequency (ModWidth + 1/fc). The maximum value is half the bit

period.

Acting as a target in Passive Communication mode at 106 kbit or in

Card Operating mode for ISO/IEC 14443A/MIFARE these bits are

used to change the duty cycle of the subcarrier frequency.

The resulting number of carrier periods are calculated according to the

following formulas:

LOW value: #clocksLOW = (ModWidth modulo 8) + 1.

HIGH value: #clocksHIGH = 16-#clocksLOW.

Table 88. TxBitPhaseReg register (address 25h); reset value: 87h, 10000111b

7 6543210

RcvClkChange TxBitPhase

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Table 89. Description of TxBitPhaseReg bits

Bit Symbol Description

7 RcvClkChange Set to logic 1, the demodulator’s clock is derived by the external RF

field.

6 to 0 TxBitPhase These bits are representing the number of carrier frequency clock

cycles, which are added to the waiting period before transmitting

data in all communication modes. TXBitPhase is used to adjust the

TX bit synchronization during passive NFCIP-1 communication mode

at 106 kbit and in ISO/IEC 14443A/MIFARE card mode.

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9.2.3.6 RFCfgReg

Configures the receiver gain and RF level detector sensitivity.

Table 90. RFCfgReg register (address 26h); reset value: 48h, 01001000b

7 6 5 4 3 2 1 0

RFLevelAmp RxGain RFLevel

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Table 91. Description of RFCfgReg bits

Bit Symbol Description

7 RFLevelAmp Set to logic 1, this bit activates the RF level detectors’ amplifier.

6 to 4 RxGain This register defines the receivers signal voltage gain factor:

Value Description

000 18 dB

001 23 dB

010 18 dB

011 23 dB

100 33 dB

101 38 dB

110 43 dB

111 48 dB

3 to 0 RFLevel Defines the sensitivity of the RF level detector, for description see

Section 12.3 “RF level detector”.

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9.2.3.7 GsNOnReg

Selects the conductance for the N-driver of the antenna driver pins TX1 and TX2 when the

driver is switched on.

9.2.3.8 CWGsPReg

Defines the conductance of the P-driver during times of no modulation

Table 92. GsNOnReg register (address 27h); reset value: 88h, 10001000b

7 6 5 4 3 2 1 0

CWGsNOn ModGsNOn

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Table 93. Description of GsNOnReg bits

Bit Symbol Description

7 to 4 CWGsNOn The value of this register defines the conductance of the output

N-driver during times of no modulation. This may be used to regulate

the output power and subsequently current consumption and

operating distance.

Note: The conductance value is binary weighted.

Note: During soft Power-down mode the highest bit is forced to 1.

Note: This value is only used if the driver TX1 or TX2 are switched on.

Otherwise the value of the bits CWGsNOff of register GsNOffReg is

used.

3 to 0 ModGsNOn The value of this register defines the conductance of the output

N-driver for the time of modulation. This may be used to regulate the

modulation index.

Note: The conductance value is binary weighted.

Note: During soft Power-down mode the highest bit is forced to 1.

Note: This value is only used if the driver TX1 or Tx2 are switched on.

Otherwise the value of the bits ModsNOff of register GsNOffReg is

used.

Table 94. CWGsPReg register (address 28h); reset value: 20h, 00100000b

7 6 5 4 3 2 1 0

00 CWGsP

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Table 95. Description of CWGsPReg bits

Bit Symbol Description

7 to 6 - Reserved for future use.

5 to 0 CWGsP The value of this register defines the conductance of the output

P-driver. This may be used to regulate the output power and

subsequently current consumption and operating distance.

Note: The conductance value is binary weighted.

Note: During soft Power-down mode the highest bit is forced to 1.

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9.2.3.9 ModGsPReg

Defines the driver P-output conductance during modulation.

[1] If Force100ASK is set to logic 1, the value of ModGsP has no effect.

9.2.3.10 TMode Register, TPrescaler Register

Defines settings for the timer.

Note: The Prescaler value is split into two 8-bit registers

Table 96. ModGsPReg register (address 29h); reset value: 20h, 00100000b

7 6 5 4 3 2 1 0

00 ModGsP

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Table 97. Description of ModGsPReg bits

Bit Symbol Description

7 to 6 - Reserved for future use.

5 to 0 ModGsP[1] The value of this register defines the conductance of the output

P-driver for the time of modulation. This may be used to regulate the

modulation index.

Note: The conductance value is binary weighted.

Note: During soft Power-down mode the highest bit is forced to 1.

Table 98. TModeReg register (address 2Ah); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

TAuto TGated TAutoRestart TPrescaler_Hi

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Table 99. Description of TModeReg bits

Bit Symbol Description

7 TAuto Set to logic 1, the timer starts automatically at the end of the transmission

in all communication modes at all speeds or when bit InitialRFOn is set to

logic 1 and the RF field is switched on.

In mode MIFARE and ISO14443-B 106kbit/s the timer stops after the 5th

bit (1 startbit, 4 databits) if the bit RxMultiple in the register RxModeReg is

not set. In all other modes, the timer stops after the 4th bit if the bit

RxMultiple the register RxModeReg is not set.

If RxMultiple is set to logic 1, the timer never stops. In this case the timer

can be stopped by setting the bit TStopNow in register ControlReg to 1.

Set to logic 0 indicates, that the timer is not influenced by the protocol.

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6 to 5 TGated The internal timer is running in gated mode.

Note: In the gated mode, the bit TRunning is 1 when the timer is enabled

by the register bits. This bit does not influence the gating signal.

Value Description

00 Non gated mode

01 Gated by SIGIN

10 Gated by AUX1

11 Gated by A3

4 TAutoRestart Set to logic 1, the timer automatically restart its count-down from

TReloadValue, instead of counting down to zero.

Set to logic 0 the timer decrements to ZERO and the bit TimerIRq is set

to logic 1.

3 to 0 TPrescaler_Hi Defines higher 4 bits for TPrescaler.

The following formula is used to calculate fTimer if TPrescalEven bit in

Demot Reg is set to logic 0:

fTimer = 13.56 MHz/(2*TPreScaler+1).

Where TPreScaler = [TPrescaler_Hi:TPrescaler_Lo] (TPrescaler value

on 12 bits) (Default TPrescalEven is logic 0)

The following formula is used to calculate fTimer if TPrescalEven bit in

Demot Reg is set to logic 1:

fTimer = 13.56 MHz/(2*TPreScaler+2).

For detailed description see Section 15 “Timer unit”. For the behaviour

within version 1.0, see Section 21 “Errata sheet” on page 106.

Table 100. TPrescalerReg register (address 2Bh); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

TPrescaler_Lo

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Table 101. Description of TPrescalerReg bits

Bit Symbol Description

7 to 0 TPrescaler_Lo Defines lower 8 bits for TPrescaler.

The following formula is used to calculate fTimer if TPrescalEven bit in

Demot Reg is set to logic 0:

fTimer = 13.56 MHz/(2*TPreScaler+1).

Where TPreScaler = [TPrescaler_Hi:TPrescaler_Lo] (TPrescaler value

on 12 bits)

The following formula is used to calculate fTimer if TPrescalEven bit in

Demot Reg is set to logic 1:

fTimer = 13.56 MHz/(2*TPreScaler+2).

Where TPreScaler = [TPrescaler_Hi:TPrescaler_Lo] (TPrescaler value

on 12 bits)

For detailed description see Section 15 “Timer unit”.

Table 99. Description of TModeReg bits …continued

Bit Symbol Description

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9.2.3.11 TReloadReg

Describes the 16-bit long timer reload value.

Note: The Reload value is split into two 8-bit registers.

Table 102. TReloadReg (Higher bits) register (address 2Ch); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

TReloadVal_Hi

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Table 103. Description of the higher TReloadReg bits

Bit Symbol Description

7 to 0 TReloadVal_Hi Defines the higher 8 bits for the TReloadReg.

With a start event the timer loads the TReloadVal. Changing this

Table 104. TReloadReg (Lower bits) register (address 2Dh); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

TReloadVal_Lo

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Table 105. Description of lower TReloadReg bits

Bit Symbol Description

7 to 0 TReloadVal_Lo Defines the lower 8 bits for the TReloadReg.

With a start event the timer loads the TReloadVal. Changing this

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9.2.3.12 TCounterValReg

Contains the current value of the timer.

Note: The Counter value is split into two 8-bit register.

9.2.4 Page 3: Test

9.2.4.1 PageReg

Selects the register page.

Table 106. TCounterValReg (Higher bits) register (address 2Eh); reset value: XXh,

XXXXXXXXb

7 6 5 4 3 2 1 0

TCounterVal_Hi

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Table 107. Description of the higher TCounterValReg bits

Bit Symbol Description

7 to 0 TCounterVal_Hi Current value of the timer, higher 8 bits.

Table 108. TCounterValReg (Lower bits) register (address 2Fh); reset value: XXh,

XXXXXXXXb

7 6 5 4 3 2 1 0

TCounterVal_Lo

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Table 109. Description of lower TCounterValReg bits

Bit Symbol Description

7 to 0 TCounterVal_Lo Current value of the timer, lower 8 bits.

Table 110. PageReg register (address 30h); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

UsePageSelect 0 0 0 0 0 PageSelect

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Table 111. Description of PageReg bits

Bit Symbol Description

7 UsePageSelect Set to logic 1, the value of PageSelect is used as register address

A5 and A4. The LSB-bits of the register address are defined by the

address pins or the internal address latch, respectively.

Set to logic 0, the whole content of the internal address latch defines

the register address. The address pins are used as described in

Section 10.1 “Automatic microcontroller interface detection”.

6 to 2 - Reserved for future use.

1 to 0 PageSelect The value of PageSelect is used only if UsePageSelect is set to

logic 1. In this case, it specifies the register page (which is A5 and

A4 of the register address).

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9.2.4.2 TestSel1Reg

General test signal configuration.

9.2.4.3 TestSel2Reg

General test signal configuration and PRBS control

Table 112. TestSel1Reg register (address 31h); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

- - SAMClockSel SAMClkD1 TstBusBitSel

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Table 113. Description of TestSel1Reg bits

Bit Symbol Description

7 to 6 - Reserved for future use.

5 to 4 SAMClockSel Defines the source for the 13.56 MHz SAM clock

Value Description

00 GND- Sam Clock switched off

01 clock derived by the internal oscillator

10 internal UART clock

11 clock derived by the RF field

3 SAMClkD1 Set to logic 1, the SAM clock is delivered to D1.

Note: Only possible if the 8bit parallel interface is not used.

2 to 0 TstBusBitSel Select the TestBus bit from the testbus to be propagated to SIGOUT.

Table 114. TestSel2Reg register (address 32h); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

TstBusFlip PRBS9 PRBS15 TestBusSel

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Table 115. Description of TestSel2Reg bits

Bit Symbol Description

7 TstBusFlip If set to logic 1, the testbus is mapped to the parallel port by the

following order:

D4, D3, D2, D6, D5, D0, D1. See Section 20 “Testsignals”.

6 PRBS9 Starts and enables the PRBS9 sequence according ITU-TO150.

Note: All relevant registers to transmit data have to be configured

before entering PRBS9 mode.

Note: The data transmission of the defined sequence is started by the

send command.

5 PRBS15 Starts and enables the PRBS15 sequence according ITU-TO150.

Note: All relevant registers to transmit data have to be configured

before entering PRBS15 mode.

Note: The data transmission of the defined sequence is started by the

send command.

4 to 0 TestBusSel Selects the testbus. See Section 20 “Testsignals”

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9.2.4.4 TestPinEnReg

Enables the pin output driver on the 8-bit parallel bus.

9.2.4.5 TestPinValueReg

Defines the values for the 7-bit parallel port when it is used as I/O.

Table 116. TestPinEnReg register (address 33h); reset value: 80h, 10000000b

7 6543210

RS232LineEn TestPinEn

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Table 117. Description of TestPinEnReg bits

Bit Symbol Description

7 RS232LineEn Set to logic 0, the lines MX and DTRQ for the serial UART are

disabled.

6 to 0 TestPinEn Enables the pin output driver on the 8-bit parallel interface.

Example:

Setting bit 0 to 1 enables D0

Setting bit 5 to 1 enables D5

Note: Only valid if one of serial interfaces is used.

If the SPI interface is used only D0 to D4 can be used. If the serial

UART interface is used and RS232LineEn is set to logic 1 only D0 to

D4 can be used.

Table 118. TestPinValueReg register (address 34h); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

UseIO TestPinValue

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Table 119. Description of TestPinValueReg bits

Bit Symbol Description

7 UseIO Set to logic 1, this bit enables the I/O functionality for the 7-bit parallel

port in case one of the serial interfaces is used. The input/output

behavior is defined by TestPinEn in register TestPinEnReg. The value

for the output behavior is defined in the bits TestPinVal.

Note: If SAMClkD1 is set to logic 1, D1 can not be used as I/O.

6 to 0 TestPinValue Defines the value of the 7-bit parallel port, when it is used as I/O. Each

output has to be enabled by the TestPinEn bits in register

TestPinEnReg.

Note: Reading the register indicates the actual status of the pins D6 -

D0 if UseIO is set to logic 1. If UseIO is set to logic 0, the value of the

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9.2.4.6 TestBusReg

Shows the status of the internal testbus.

9.2.4.7 AutoTestReg

Controls the digital selftest.

9.2.4.8 VersionReg

Shows the version.

Table 120. TestBusReg register (address 35h); reset value: XXh, XXXXXXXXb

7 6 5 4 3 2 1 0

TestBus

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Table 121. Description of TestBusReg bits

Bit Symbol Description

7 to 0 TestBus Shows the status of the internal testbus. The testbus is selected by the

Table 122. AutoTestReg register (address 36h); reset value: 40h, 01000000b

7 6 5 4 3 2 1 0

0AmpRcvEOFSO

FAdjust

- SelfTest

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Table 123. Description of bits

Bit Symbol Description

7 - Reserved for production tests.

6 AmpRcv If set to logic 1, the internal signal processing in the receiver chain is

performed non-linear. This increases the operating distance in

communication modes at 106 kbit.

Note: Due to the non linearity the effect of the bits MinLevel and

CollLevel in the register RxThreshholdReg are as well non linear.

5 EOFSOFAdjust If set to logic 0 and the EOFSOFwidth is set to 1 will result in the

Maximum length of SOF and EOF according to ISO/IEC14443B

If set to logic 0 and the EOFSOFwidth is set to 0 will result in the

Minimum length of SOF and EOF according to ISO/IEC14443B

If this bit is set to 1 and the EOFSOFwidth bit is logic 1 will result in

SOF low = (11 etu  8 cycles)/fc

SOF high = (2 etu + 8 cycles)/fc

EOF low = (11 etu  8 cycles)/fc

For the behaviour in version 1.0, see Section 21 “Errata sheet” on

page 106.

4 - Reserved for future use.

3 to 0 SelfTest Enables the digital self test. The selftest can be started by the selftest

command in the command register. The selftest is enabled by 1001.

Note: For default operation the selftest has to be disabled by 0000.

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Transmission module

Table 124. VersionReg register (address 37h); reset value: XXh, XXXXXXXXb

7 6 5 4 3 2 1 0

Version

Access Rightsrrrrrrrr

Table 125. Description of VersionReg bits

Bit Symbol Description

7 to 0 Version 80h indicates PN512 version 1.0, differences to version 2.0 are

described within Section 21 “Errata sheet” on page 106.

82h indicates PN512 version 2.0, which covers also the industrial

version.

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9.2.4.9 AnalogTestReg

Controls the pins AUX1 and AUX2

Table 126. AnalogTestReg register (address 38h); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

AnalogSelAux1 AnalogSelAux2

Access Rights r/w r/w r/w r/w r/w r/w r/w r/w

Table 127. Description of AnalogTestReg bits

Bit Symbol Description

7 to 4

3to 0

AnalogSelAux1

AnalogSelAux2

Controls the AUX pin.

Note: All test signals are described in Section 20 “Testsignals”.

Value Description

0000 Tristate

0001 Output of TestDAC1 (AUX1), output of TESTDAC2 (AUX2)

Note: Current output. The use of 1 k pull-down resistor on AUX is recommended.

0010 Testsignal Corr1

Note: Current output. The use of 1 k pull-down resistor on AUX is recommended.

0011 Testsignal Corr2

Note: Current output. The use of 1 k pull-down resistor on AUX is recommended.

0100 Testsignal MinLevel

Note: Current output. The use of 1 k pull-down resistor on AUX is recommended.

0101 Testsignal ADC channel I

Note: Current output. The use of 1 k pull-down resistor on AUX is recommended.

0110 Testsignal ADC channel Q

Note: Current output. The use of 1 k pull-down resistor on AUX is recommended.

0111 Testsignal ADC channel I combined with Q

Note: Current output. The use of 1 k pull-down resistor on AUX is recommended.

1000 Testsignal for production test

Note: Current output. The use of 1 k pull-down resistor on AUX is recommended.

1001 SAM clock (13.56 MHz)

1010 HIGH

1011 LOW

1100 TxActive

At 106 kbit: HIGH during Startbit, Data bit, Parity and CRC. At 212 and 424 kbit: High

during Preamble, Sync, Data and CRC.

1101 RxActive

At 106 kbit: High during databit, Parity and CRC.

At 212 and 424 kbit: High during data and CRC.

1110 Subcarrier detected

106 kbit: not applicable

212 and 424 kbit: High during last part of Preamble, Sync data and CRC

1111 TestBus-Bit as defined by the TstBusBitSel in register TestSel1Reg.

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9.2.4.10 TestDAC1Reg

Defines the testvalues for TestDAC1.

9.2.4.11 TestDAC2Reg

Defines the testvalue for TestDAC2.

9.2.4.12 TestADCReg

Shows the actual value of ADC I and Q channel.

Table 128. TestDAC1Reg register (address 39h); reset value: XXh, 00XXXXXXb

7 6 5 4 3 2 1 0

0 0 TestDAC1

Access

Rights

RFT RFU r/w r/w r/w r/w r/w r/w

Table 129. Description of TestDAC1Reg bits

Bit Symbol Description

7 - Reserved for production tests.

6 - Reserved for future use.

5 to 0 TestDAC1 Defines the testvalue for TestDAC1. The output of the DAC1 can be

switched to AUX1 by setting AnalogSelAux1 to 0001 in register

AnalogTestReg.

Table 130. TestDAC2Reg register (address 3Ah); reset value: XXh, 00XXXXXXb

7 6 5 4 3 2 1 0

0 0 TestDAC2

Access

Rights

RFU RFU r/w r/w r/w r/w r/w r/w

Table 131. Description ofTestDAC2Reg bits

Bit Symbol Description

7 to 6 - Reserved for future use.

5 to 0 TestDAC2 Defines the testvalue for TestDAC2. The output of the DAC2 can be

switched to AUX2 by setting AnalogSelAux2 to 0001 in register

AnalogTestReg.

Table 132. TestADCReg register (address 3Bh); reset value: XXh, XXXXXXXXb

7 6 5 4 3 2 1 0

ADC_I ADC_Q

Access

Rights

Table 133. Description of TestADCReg bits

Bit Symbol Description

7 to 4 ADC_I Shows the actual value of ADC I channel.

3 to 0 ADC_Q Shows the actual value of ADC Q channel.

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9.2.4.13 RFTReg

10. Digital interfaces

10.1 Automatic microcontroller interface detection

The PN512 supports direct interfacing of hosts using SPI, I2C-bus or serial UART

interfaces. The PN512 resets its interface and checks the current host interface type

automatically after performing a power-on or hard reset. The PN512 identifies the host

interface by sensing the logic levels on the control pins after the reset phase. This is done

using a combination of fixed pin connections. Table 140 shows the different connection

configurations.

Table 134. RFTReg register (address 3Ch); reset value: FFh, 11111111b

7 6 5 4 3 2 1 0

11111111

Access

Rights

RFT RFT RFT RFT RFT RFT RFT RFT

Table 135. Description of RFTReg bits

Bit Symbol Description

7 to 0 - Reserved for production tests.

Table 136. RFTReg register (address 3Dh, 3Fh); reset value: 00h, 00000000b

7 6 5 4 3 2 1 0

00000000

Access

Rights

RFT RFT RFT RFT RFT RFT RFT RFT

Table 137. Description of RFTReg bits

Bit Symbol Description

7 to 0 - Reserved for production tests.

Table 138. RFTReg register (address 3Eh); reset value: 03h, 00000011b

7 6 5 4 3 2 1 0

00000011

Access

Rights

RFT RFT RFT RFT RFT RFT RFT RFT

Table 139. Description of RFTReg bits

Bit Symbol Description

7 to 0 - Reserved for production tests.

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NXP Semiconductors PN512

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[1] only available in HVQFN 40.

[2] not available in HVQFN 32.

Table 140. Connection protocol for detecting different interface types

Pin Interface type

UART (input) SPI (output) I2C-bus (I/O)

SDA RX NSS SDA

I2C001

EA01EA

D7 TX MISO SCL

D6 MX MOSI ADR_0

D5 DTRQ SCK ADR_1

D4 - - ADR_2

D3 - - ADR_3

D2 - - ADR_4

D1 - - ADR_5

Table 141. Connection scheme for detecting the different interface types

PN512 Parallel Interface Type Serial Interface Types

Separated Read/Write Strobe Common Read/Write Strobe

Pin Dedicated

Address Bus Multiplexed

Address Bus Dedicated

Address Bus Multiplexed

Address Bus UART SPI I2C

ALE 1 ALE 1 AS RX NSS SDA

A5[1] A5 0 A5 0 000

A4[1] A4 0 A4 0 000

A3[2] A3 0 A3 0 000

A2[2] A2 1 A2 1 000

A1A1 1 A1 1 001

A0A0 1 A0 0 01EA

NRD[2] NRD NRD NDS NDS 1 1 1

NWR[2] NWR NWR RD/NWR RD/NWR 1 1 1

NCS[2] NCS NCS NCS NCS NCS NCS NCS

D7 D7 D7 D7 D7 TX MISO SCL

D6 D6 D6 D6 D6 MX MOSI ADR_0

D5 D5 AD5 D5 AD5 DTRQ SCK ADR_1

D4 D4 AD4 D4 AD4 --ADR_2

D3 D3 AD3 D3 AD3 --ADR_3

D2 D2 AD2 D2 AD2 --ADR_4

D1 D1 AD1 D1 AD1 --ADR_5

D0 D0 AD0 D0 AD0 --ADR_6

Remark: Overview on the pin behavior

Pin behavior Input Output In/Out

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Transmission module

10.2 Serial Peripheral Interface

A serial peripheral interface (SPI compatible) is supported to enable high-speed

communication to the host. The interface can handle data speeds up to 10 Mbit/s. When

communicating with a host, the PN512 acts as a slave, receiving data from the external

host for register settings, sending and receiving data relevant for RF interface

communication.

An interface compatible with SPI enables high-speed serial communication between the

PN512 and a microcontroller. The implemented interface is in accordance with the SPI

standard.

The timing specification is given in Section 26.1 on page 113.

The PN512 acts as a slave during SPI communication. The SPI clock signal SCK must be

generated by the master. Data communication from the master to the slave uses the

MOSI line. The MISO line is used to send data from the PN512 to the master.

Data bytes on both MOSI and MISO lines are sent with the MSB first. Data on both MOSI

and MISO lines must be stable on the rising edge of the clock and can be changed on the

falling edge. Data is provided by the PN512 on the falling clock edge and is stable during

the rising clock edge.

10.2.1 SPI read data

Reading data using SPI requires the byte order shown in Table 142 to be used. It is

possible to read out up to n-data bytes.

The first byte sent defines both the mode and the address.

[1] X = Do not care.

Remark: The MSB must be sent first.

10.2.2 SPI write data

To write data to the PN512 using SPI requires the byte order shown in Table 143. It is

possible to write up to n data bytes by only sending one address byte.

Fig 12. SPI connection to host

001aan220

PN512

SCK

MOSI

MISO

NSS

Table 142. MOSI and MISO byte order

Line Byte 0 Byte 1 Byte 2 To Byte n Byte n + 1

MOSI address 0 address 1 address 2 ... address n 00

MISO X[1] data 0 data 1 ... data n  1data n

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The first send byte defines both the mode and the address byte.

[1] X = Do not care.

Remark: The MSB must be sent first.

10.2.3 SPI address byte

The address byte has to meet the following format.

The MSB of the first byte defines the mode used. To read data from the PN512 the MSB is

set to logic 1. To write data to the PN512 the MSB must be set to logic 0. Bits 6 to 1 define

the address and the LSB is set to logic 0.

10.3 UART interface

10.3.1 Connection to a host

Remark: Signals DTRQ and MX can be disabled by clearing TestPinEnReg register’s

RS232LineEn bit.

10.3.2 Selectable UART transfer speeds

The internal UART interface is compatible with an RS232 serial interface.

The default transfer speed is 9.6 kBd. To change the transfer speed, the host controller

must write a value for the new transfer speed to the SerialSpeedReg register. Bits

BR_T0[2:0] and BR_T1[4:0] define the factors for setting the transfer speed in the

SerialSpeedReg register.

The BR_T0[2:0] and BR_T1[4:0] settings are described in Table 9. Examples of different

transfer speeds and the relevant register settings are given in Table 10.

Table 143. MOSI and MISO byte order

Line Byte 0 Byte 1 Byte 2 To Byte n Byte n + 1

MOSI address 0 data 0 data 1 ... data n  1data n

MISO X[1] X[1] X[1] ... X[1] X[1]

Table 144. Address byte 0 register; address MOSI

7 (MSB) 6543210 (LSB)

1 = read

0 = write

address 0

Fig 13. UART connection to microcontrollers

001aan221

PN512

DTRQ

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NXP Semiconductors PN512

Transmission module

[1] The resulting transfer speed error is less than 1.5 % for all described transfer speeds.

The selectable transfer speeds shown in Table 10 are calculated according to the

following equations:

If BR_T0[2:0] = 0:

(1)

If BR_T0[2:0] > 0:

(2)

Remark: Transfer speeds above 1228.8 kBd are not supported.

10.3.3 UART framing

Table 145. BR_T0 and BR_T1 settings

BR_Tn Bit 0 Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7

BR_T0 factor11248163264

BR_T1 range 1 to 32 33 to 64 33 to 64 33 to 64 33 to 64 33 to 64 33 to 64 33 to 64

Table 146. Selectable UART transfer speeds

Transfer speed (kBd) SerialSpeedReg value Transfer speed accuracy (%)[1]

Decimal Hexadecimal

7.2 250 FAh 0.25

9.6 235 EBh 0.32

14.4 218 DAh 0.25

19.2 203 CBh 0.32

38.4 171 ABh 0.32

57.6 154 9Ah 0.25

115.2 122 7Ah 0.25

128 116 74h 0.06

230.4 90 5Ah 0.25

460.8 58 3Ah 0.25

921.6 28 1Ch 1.45

1228.8 21 15h 0.32

transfer speed 27.12 106



BR_T0 1+

--------------------------------

transfer speed 27.12 106



BR_T1 33+

2BR_T0 1–

-----------------------------------







Table 147. UART framing

Bit Length Value

Start 1-bit 0

Data 8 bits data

Stop 1-bit 1

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Remark: The LSB for data and address bytes must be sent first. No parity bit is used

during transmission.

Read data: To read data using the UART interface, the flow shown in Table 148 must be

used. The first byte sent defines both the mode and the address.

Write data: To write data to the PN512 using the UART interface, the structure shown in

Table 149 must be used.

The first byte sent defines both the mode and the address.

Table 148. Read data byte order

Pin Byte 0 Byte 1

RX (pin 24) address -

TX (pin 31) - data 0

(1) Reserved.

Fig 14. UART read data timing diagram

001aak588

ADDRESS

DTRQ

A0 A1 A2 A3 A4 A5 (1) SO

SA D0 D1 D2 D3 D4 D5 D6 D7 SO

DATA

R/W

Table 149. Write data byte order

Pin Byte 0 Byte 1

RX (pin 24) address 0 data 0

TX (pin 31) - address 0

xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx

xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x

xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx

xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx

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Remark: The data byte can be sent directly after the address byte on pin RX.

Address byte: The address byte has to meet the following format:

(1) Reserved.

Fig 15. UART write data timing diagram

001aak589

ADDRESS

DTRQ

A0 A1 A2 A3 A4 A5

(1)

SO SA D0 D1 D2 D3 D4 D5 D6 D7 SO

SA A0 A1 A2 A3 A4 A5

(1)

DATA

ADDRESS

R/W

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NXP Semiconductors PN512

Transmission module

The MSB of the first byte sets the mode used. To read data from the PN512, the MSB is

set to logic 1. To write data to the PN512 the MSB is set to logic 0. Bit 6 is reserved for

future use, and bits 5 to 0 define the address; see Table 150.

10.4 I2C Bus Interface

An I2C-bus (Inter-IC) interface is supported to enable a low-cost, low pin count serial bus

interface to the host. The I2C-bus interface is implemented according to

NXP Semiconductors’ I2C-bus interface specification, rev. 2.1, January 2000. The

interface can only act in Slave mode. Therefore the PN512 does not implement clock

generation or access arbitration.

The PN512 can act either as a slave receiver or slave transmitter in Standard mode, Fast

mode and High-speed mode.

SDA is a bidirectional line connected to a positive supply voltage using a current source or

a pull-up resistor. Both SDA and SCL lines are set HIGH when data is not transmitted. The

PN512 has a 3-state output stage to perform the wired-AND function. Data on the I2C-bus

can be transferred at data rates of up to 100 kBd in Standard mode, up to 400 kBd in Fast

mode or up to 3.4 Mbit/s in High-speed mode.

If the I2C-bus interface is selected, spike suppression is activated on lines SCL and SDA

as defined in the I2C-bus interface specification.

See Table 170 on page 114 for timing requirements.

Table 150. Address byte 0 register; address MOSI

7 (MSB) 6543210 (LSB)

1 = read

0 = write

reserved address

Fig 16. I2C-bus interface

001aan222

PN512

SDA

SCL

I2C

ADR_[5:0]

PULL-UP

NETWORK

CONFIGURATION

WIRING

PULL-UP

NETWORK

MICROCONTROLLER

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10.4.1 Data validity

Data on the SDA line must be stable during the HIGH clock period. The HIGH or LOW

state of the data line must only change when the clock signal on SCL is LOW.

10.4.2 START and STOP conditions

To manage the data transfer on the I2C-bus, unique START (S) and STOP (P) conditions

are defined.

•A START condition is defined with a HIGH-to-LOW transition on the SDA line while

SCL is HIGH.

•A STOP condition is defined with a LOW-to-HIGH transition on the SDA line while

SCL is HIGH.

The I2C-bus master always generates the START and STOP conditions. The bus is busy

after the START condition. The bus is free again a certain time after the STOP condition.

The bus stays busy if a repeated START (Sr) is generated instead of a STOP condition.

The START (S) and repeated START (Sr) conditions are functionally identical. Therefore,

S is used as a generic term to represent both the START (S) and repeated START (Sr)

conditions.

10.4.3 Byte format

Each byte must be followed by an acknowledge bit. Data is transferred with the MSB first;

see Figure 21. The number of transmitted bytes during one data transfer is unrestricted

but must meet the read/write cycle format.

Fig 17. Bit transfer on the I2C-bus

mbc621

data line

stable;

data valid

change

of data

allowed

SDA

SCL

Fig 18. START and STOP conditions

mbc622

SDA

SCL P

STOP condition

SDA

SCL

START condition

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10.4.4 Acknowledge

An acknowledge must be sent at the end of one data byte. The acknowledge-related clock

pulse is generated by the master. The transmitter of data, either master or slave, releases

the SDA line (HIGH) during the acknowledge clock pulse. The receiver pulls down the

SDA line during the acknowledge clock pulse so that it remains stable LOW during the

HIGH period of this clock pulse.

The master can then generate either a STOP (P) condition to stop the transfer or a

repeated START (Sr) condition to start a new transfer.

A master-receiver indicates the end of data to the slave-transmitter by not generating an

acknowledge on the last byte that was clocked out by the slave. The slave-transmitter

releases the data line to allow the master to generate a STOP (P) or repeated START (Sr)

condition.

Fig 19. Acknowledge on the I2C-bus

mbc602

START

condition

9821

clock pulse for

acknowledgement

not acknowledge

acknowledge

data output

by transmitter

data output

by receiver

SCL from

master

Fig 20. Data transfer on the I2C-bus

msc608

SDA

SCL

STOP or

repeated START

condition

START or

repeated START

condition

1 2 3 - 8 9

ACK

7812

MSB acknowledgement

signal from slave

byte complete,

interrupt within slave

clock line held LOW while

interrupts are serviced

acknowledgement

signal from receiver

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10.4.5 7-Bit addressing

During the I2C-bus address procedure, the first byte after the START condition is used to

determine which slave will be selected by the master.

Several address numbers are reserved. During device configuration, the designer must

ensure that collisions with these reserved addresses cannot occur. Check the I2C-bus

specification for a complete list of reserved addresses.

The I2C-bus address specification is dependent on the definition of pin EA. Immediately

after releasing pin NRSTPD or after a power-on reset, the device defines the I2C-bus

address according to pin EA.

If pin EA is set LOW, the upper 4 bits of the device bus address are reserved by

NXP Semiconductors and set to 0101b for all PN512 devices. The remaining 3 bits

(ADR_0, ADR_1, ADR_2) of the slave address can be freely configured by the customer

to prevent collisions with other I2C-bus devices.

If pin EA is set HIGH, ADR_0 to ADR_5 can be completely specified at the external pins

according to Table 140 on page 66. ADR_6 is always set to logic 0.

In both modes, the external address coding is latched immediately after releasing the

reset condition. Further changes at the used pins are not taken into consideration.

Depending on the external wiring, the I2C-bus address pins can be used for test signal

outputs.

10.4.6 Register write access

To write data from the host controller using the I2C-bus to a specific register in the PN512

the following frame format must be used.

•The first byte of a frame indicates the device address according to the I2C-bus rules.

•The second byte indicates the register address followed by up to n-data bytes.

In one frame all data bytes are written to the same register address. This enables fast

FIFO buffer access. The Read/Write (R/W) bit is set to logic 0.

Fig 21. First byte following the START procedure

001aak591

slave address

bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 R/W

MSB LSB

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10.4.7 Register read access

To read out data from a specific register address in the PN512, the host controller must

use the following procedure:

•Firstly, a write access to the specific register address must be performed as indicated

in the frame that follows

•The first byte of a frame indicates the device address according to the I2C-bus rules

•The second byte indicates the register address. No data bytes are added

•The Read/Write bit is 0

After the write access, read access can start. The host sends the device address of the

PN512. In response, the PN512 sends the content of the read access register. In one

frame all data bytes can be read from the same register address. This enables fast FIFO

buffer access or register polling.

The Read/Write (R/W) bit is set to logic 1.

Fig 22. Register read and write access

001aak592

SA00

C-BUS

SLAVE ADDRESS

[A7:A0]

JOINER REGISTER

ADDRESS [A5:A0]

write cycle

(W) ADATA

[7:0]

[0:n]

SA00

C-BUS

SLAVE ADDRESS

[A7:A0]

JOINER REGISTER

ADDRESS [A5:A0]

read cycle

optional, if the previous access was on the same register address

(W) AP

S start condition

P stop condition

A acknowledge

A not acknowledge

W write cycle

R read cycle

C-BUS

SLAVE ADDRESS

[A7:A0]

sent by master

sent by slave

DATA

[7:0]

(R) A

DATA

[7:0] A

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Transmission module

10.4.8 High-speed mode

In High-speed mode (HS mode), the device can transfer information at data rates of up to

3.4 Mbit/s, while remaining fully downward-compatible with Fast or Standard mode

(F/S mode) for bidirectional communication in a mixed-speed bus system.

10.4.9 High-speed transfer

To achieve data rates of up to 3.4 Mbit/s the following improvements have been made to

I2C-bus operation.

•The inputs of the device in HS mode incorporate spike suppression, a Schmitt trigger

on the SDA and SCL inputs and different timing constants when compared to

F/S mode

•The output buffers of the device in HS mode incorporate slope control of the falling

edges of the SDA and SCL signals with different fall times compared to F/S mode

10.4.10 Serial data transfer format in HS mode

The HS mode serial data transfer format meets the Standard mode I2C-bus specification.

HS mode can only start after all of the following conditions (all of which are in F/S mode):

1. START condition (S)

2. 8-bit master code (00001XXXb)

3. Not-acknowledge bit (A)

When HS mode starts, the active master sends a repeated START condition (Sr) followed

by a 7-bit slave address with a R/W bit address and receives an acknowledge bit (A) from

the selected PN512.

Data transfer continues in HS mode after the next repeated START (Sr), only switching

back to F/S mode after a STOP condition (P). To reduce the overhead of the master code,

a master links a number of HS mode transfers, separated by repeated START conditions

(Sr).

Fig 23. I2C-bus HS mode protocol switch

F/S mode HS mode (current-source for SCL HIGH enabled) F/S mode

001aak749

AA A/ADATA

(n-bytes + A)

S R/WMASTER CODE Sr SLAVE ADDRESS

HS mode continues

Sr SLAVE ADDRESS

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Transmission module

Fig 24. I2C-bus HS mode protocol frame

msc618

8-bit master code 0000 1xxx AtH

F/S mode

HS mode If P then

F/S mode

If Sr (dotted lines)

then HS mode

16789 67891

1 2 to 5

2 to 5

67 89

SDA high

SCL high

SDA high

SCL high

tHtFS

Sr Sr P

n + (8-bit data + A/A)

7-bit SLA R/W A

= Master current source pull-up

= Resistor pull-up

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10.4.11 Switching between F/S mode and HS mode

After reset and initialization, the PN512 is in Fast mode (which is in effect F/S mode as

Fast mode is downward-compatible with Standard mode). The connected PN512

recognizes the “S 00001XXX A” sequence and switches its internal circuitry from the Fast

mode setting to the HS mode setting.

The following actions are taken:

1. Adapt the SDA and SCL input filters according to the spike suppression requirement

in HS mode.

2. Adapt the slope control of the SDA output stages.

It is possible for system configurations that do not have other I2C-bus devices involved in

the communication to switch to HS mode permanently. This is implemented by setting

Status2Reg register’s I2CForceHS bit to logic 1. In permanent HS mode, the master code

is not required to be sent. This is not defined in the specification and must only be used

when no other devices are connected on the bus. In addition, spikes on the I2C-bus lines

must be avoided because of the reduced spike suppression.

10.4.12 PN512 at lower speed modes

PN512 is fully downward-compatible and can be connected to an F/S mode I2C-bus

system. The device stays in F/S mode and communicates at F/S mode speeds because a

master code is not transmitted in this configuration.

11. 8-bit parallel interface

The PN512 supports two different types of 8-bit parallel interfaces, Intel and Motorola

compatible modes.

11.1 Overview of supported host controller interfaces

The PN512 supports direct interfacing to various -Controllers. The following table shows

the parallel interface types supported by the PN512.

Table 151. Supported interface types

Supported interface types Bus Separated Address and

Data Bus Multiplexed Address

and Data Bus

Separated Read and Write

Strobes (INTEL compatible)

control NRD, NWR, NCS NRD, NWR, NCS, ALE

address A0 … A3 [..A5*] AD0 … AD7

data D0 … D7 AD0 … AD7

Multiplexed Read and Write

Strobe (Motorola compatible)

control R/NW, NDS, NCS R/NW, NDS, NCS, AS

address A0 … A3 [..A5*] AD0 … AD7

data D0 … D7 AD0 … AD7

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Transmission module

11.2 Separated Read/Write strobe

For timing requirements refer to Section 26.2 “8-bit parallel interface timing”.

11.3 Common Read/Write strobe

For timing requirements refer to Section 26.2 “8-bit parallel interface timing”

Fig 25. Connection to host controller with separated Read/Write strobes

001aan223

PN512

NCS

A0...A3[A5*]

D0...D7

A4*

A5*

address bus (A0...A3[A5*])

ALE

NRD

NWR

ADDRESS

DECODER

data bus (D0...D7)

high

not data strobe (NRD)

not write (NWR)

address bus

remark: *depending on the package type.

multiplexed address/data AD0...AD7)

PN512

NCS

D0...D7

ALE

NRD

NWR

ADDRESS

DECODER

low

high

low

address latch enable (ALE)

not read strobe (NRD)

not write (NWR)

non multiplexed

address

Fig 26. Connection to host controller with common Read/Write strobes

001aan224

PN512

NCS

A0...A3[A5*]

D0...D7

A4*

A5*

address bus (A0...A3[A5*])

ALE

NRD

NWR

ADDRESS

DECODER

Data bus (D0...D7)

high

not data strobe (NDS)

read not write (RD/NWR)

address bus

remark: *depending on the package type.

multiplexed address/data AD0...AD7)

PN512

NCS

D0...D7

ALE

NRD

NWR

ADDRESS

DECODER

low

high

low

address strobe (AS)

not data strobe (NDS)

read not write (RD/NWR)

non multiplexed

address

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Transmission module

12. Analog interface and contactless UART

12.1 General

The integrated contactless UART supports the external host online with framing and error

checking of the protocol requirements up to 848 kBd. An external circuit can be connected

to the communication interface pins MFIN and MFOUT to modulate and demodulate the

data.

The contactless UART handles the protocol requirements for the communication

protocols in cooperation with the host. Protocol handling generates bit and byte-oriented

framing. In addition, it handles error detection such as parity and CRC, based on the

various supported contactless communication protocols.

Remark: The size and tuning of the antenna and the power supply voltage have an

important impact on the achievable operating distance.

12.2 TX driver

The signal on pins TX1 and TX2 is the 13.56 MHz energy carrier modulated by an

envelope signal. It can be used to drive an antenna directly using a few passive

components for matching and filtering; see Section 15 on page 93. The signal on pins TX1

and TX2 can be configured using the TxControlReg register; see Section 9.2.2.5 on

page 37.

The modulation index can be set by adjusting the impedance of the drivers. The

impedance of the p-driver can be configured using registers CWGsPReg and

ModGsPReg. The impedance of the n-driver can be configured using the GsNReg

The TxModeReg and TxSelReg registers control the data rate and framing during

transmission and the antenna driver setting to support the different requirements at the

different modes and transfer speeds.

[1] X = Do not care.

Table 152. Register and bit settings controlling the signal on pin TX1

Bit

Tx1RFEn Bit

Force

100ASK

Bit

InvTx1RFOn Bit

InvTx1RFOff Envelope Pin

TX1 GSPMos GSNMos Remarks

[1] X[1] X[1] X[1] X[1] X[1] X[1] not specified if RF is

switched off

100 X

[1] 0 RF pMod nMod 100 % ASK: pin TX1

pulled to logic 0,

independent of the

InvTx1RFOff bit

1RFpCWnCW

01 X

[1] 0 RF pMod nMod

1RFpCWnCW

11 X

[1] 0 0 pMod nMod

1RF_npCWnCW

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[1] X = Do not care.

The following abbreviations have been used in Table 152 and Table 153:

•RF: 13.56 MHz clock derived from 27.12 MHz quartz crystal oscillator divided by 2

•RF_n: inverted 13.56 MHz clock

•GSPMos: conductance, configuration of the PMOS array

•GSNMos: conductance, configuration of the NMOS array

•pCW: PMOS conductance value for continuous wave defined by the CWGsPReg

•pMod: PMOS conductance value for modulation defined by the ModGsPReg register

•nCW: NMOS conductance value for continuous wave defined by the GsNReg

•nMod: NMOS conductance value for modulation defined by the GsNReg register’s

ModGsN[3:0] bits

•X = do not care.

Remark: If only one driver is switched on, the values for CWGsPReg, ModGsPReg and

GsNReg registers are used for both drivers.

12.3 RF level detector

The RF level detector is integrated to fulfill NFCIP1 protocol requirements (e.g. RF

collision avoidance). Furthermore the RF level detector can be used to wake up the

PN512 and to generate an interrupt.

Table 153. Register and bit settings controlling the signal on pin TX2

Bit

Tx1RFEn Bit

Force

100ASK

Bit

Tx2CW Bit

InvTx2RFOn Bit

InvTx2RFOff Envelope Pin

TX2 GSPMos GSNMos Remarks

[1] X[1] X[1] X[1] X[1] X[1] X[1] X[1] not specified if

RF is switched

off

1000 X

[1] 0 RF pMod nMod -

1RFpCWnCW

[1] 0 RF_n pMod nMod

1RF_npCWnCW

10 X

[1] X[1] RF pCW nCW conductance

always CW for

the Tx2CW bit

[1] X[1] RF_n pCW nCW

100 X

[1] 0 0 pMod nMod 100 % ASK: pin

TX2 pulled

to logic 0

(independent of

the

InvTx2RFOn/Inv

Tx2RFOff bits)

1RFpCWnCW

[1] 0 0 pMod nMod

1RF_npCWnCW

10 X

[1] X[1] RF pCW nCW

[1] X[1] RF_n pCW nCW

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NXP Semiconductors PN512

Transmission module

The sensitivity of the RF level detector is adjustable in a 4-bit range using the bits RFLevel

in register RFCfgReg. The sensitivity itself depends on the antenna configuration and

tuning.

Possible sensitivity levels at the RX pin are listed in the Table 153.

To increase the sensitivity of the RF level detector an amplifier can be activated by setting

the bit RFLevelAmp in register RFCfgReg to 1.

Remark: During soft Power-down mode the RF level detector amplifier is automatically

switched off to ensure that the power consumption is less than 10 Aat3V.

Remark: With typical antennas lower sensitivity levels can provoke misleading results

because of intrinsic noise in the environment.

Note: It is recommended to use the bit RFLevelAmp only with higher RF level settings.

12.4 Data mode detector

The Data mode detector gives the possibility to detect received signals according to the

ISO/IEC 14443A/MIFARE, FeliCa or NFCIP-1 schemes at the standard transfer speeds

for 106 kbit, 212 kbit and 424 kbit in order to prepare the internal receiver in a fast and

convenient way for further data processing.

The Data mode detector can only be activated by the AutoColl command. The mode

detector resets, when no external RF field is detected by the RF level detector. The Data

mode detector could be switched off during the AutoColl command by setting bit

ModeDetOff in register ModeReg to 1.

Table 154. Setting of the bits RFlevel in register RFCfgReg (RFLevel amplifier deactivated)

V~Rx [Vpp] RFLevel

~2 1111

~1.4 1110

~0.99 1101

~0.69 1100

~0.49 1011

~0.35 1010

~0.24 1001

~0.17 1000

~0.12 0111

~0.083 0110

~0.058 0101

~0.041 0100

~0.029 0011

~0.020 0010

~0.014 0001

~0.010 0000

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NXP Semiconductors PN512

Transmission module

Fig 27. Data mode detector

001aan225

HOST INTERFACES

RECEIVER

I/Q DEMODULATOR

REGISTERS

REGISTERSETTING

FOR THE

DETECTED MODE

DATA MODE DETECTOR

PN512

NFC @ 106 kbit/s

NFC @ 212 kbit/s

NFC @ 424 kbit/s

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NXP Semiconductors PN512

Transmission module

12.5 Serial data switch

Two main blocks are implemented in the PN512. The digital block comprises the state

machines, encoder/decoder logic. The analog block comprises the modulator and

antenna drivers, the receiver and amplifiers. The interface between these two blocks can

be configured in the way, that the interfacing signals may be routed to the pins SIGIN and

SIGOUT. SIGIN is capable of processing digital NFC signals on transfer speeds above

424 kbit. The SIGOUT pin can provide a digital signal that can be used with an additional

external circuit to generate transfer speeds above 424 kbit (including 106, 212 and

424 kbit). Furthermore SIGOUT and SIGIN can be used to enable the S2C interface in the

card SAM mode to emulate a card functionality with the PN512 and a secure IC. A secure

IC can be the SmartMX smart card controller IC.

This topology allows the analog block of the PN512 to be connected to the digital block of

another device.

The serial signal switch is controlled by the TxSelReg and RxSelReg registers.

Figure 28 shows the serial data switch for TX1 and TX2.

12.6 S2C interface support

The S2C provides the possibility to directly connect a secure IC to the PN512 in order act

as a contactless smart card IC via the PN512. The interfacing signals can be routed to the

pins SIGIN and SIGOUT. SIGIN can receive either a digital FeliCa or digitized

ISO/IEC 14443A signal sent by the secure IC. The SIGOUT pin can provide a digital

signal and a clock to communicate to the secure IC. A secure IC can be the smart card IC

provided by NXP Semiconductors.

The PN512 has an extra supply pin (SVDD and PVSS as Ground line) for the SIGIN and

SIGOUT pads.

Figure 30 outlines possible ways of communications via the PN512 to the secure IC.

Fig 28. Serial data switch for TX1 and TX2

001aak593

INTERNAL

CODER INVERT IF

InvMod = 1

DriverSel[1:0]

3-state

to driver TX1 and TX2

0 = impedance = modulated

1 = impedance = CW

INVERT IF

PolMFin = 0

MFIN

envelope

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NXP Semiconductors PN512

Transmission module

Configured in the Secure Access Mode the host controller can directly communicate to

the Secure IC via SIGIN/SIGOUT. In this mode the PN512 generates the RF clock and

performs the communication on the SIGOUT line. To enable the Secure Access module

mode the clock has to be derived by the internal oscillator of the PN512, see bits

SAMClockSel in register TestSel1Reg.

Configured in Contactless Card mode the secure IC can act as contactless smart card IC

via the PN512. In this mode the signal on the SIGOUT line is provided by the external RF

field of the external reader/writer. To enable the Contactless Card mode the clock derived

by the external RF field has to be used.

The configuration of the S2C interface differs for the FeliCa and MIFARE scheme as

outlined in the following chapters.

Fig 29. Communication flows using the S2C interface

001aan226

CONTACTLESS UART

SERIAL SIGNAL SWITCH

FIFO AND STATE MACHINE

SPI, I

C, SERIAL UART

HOST CONTROLLER

PN512

SECURE CORE IC

SIGOUT

SIGIN

2. contactless

card mode

1. secure access

module (SAM) mode

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12.6.1 Signal shape for Felica S2C interface support

The FeliCa secure IC is connected to the PN512 via the pins SIGOUT and SIGIN.

The signal at SIGOUT contains the information of the 13.56 MHz clock and the digitized

demodulated signal. The clock and the demodulated signal is combined by using the

logical function exclusive or.

To ensure that this signal is free of spikes, the demodulated signal is digitally filtered first.

The time delay for that digital filtering is in the range of one bit length. The demodulated

signal changes only at a positive edge of the clock.

The register TxSelReg controls the setting at SIGOUT.

The answer of the FeliCa SAM is transferred from SIGIN directly to the antenna driver.

The modulation is done according to the register settings of the antenna drivers.

The clock is switched to AUX1 or AUX2 (see AnalogSelAux).

Note: A HIGH signal on AUX1 and AUX2 has the same level as AVDD. A HIGH signal at

SIGOUT has the same level as SVDD. Alternatively it is possible to use pin D0 as clock

output if a serial interface is used. The HIGH level at D0 is the same as PVDD.

Note: The signal on the antenna is shown in principle only. In reality the waveform is

sinusoidal.

Fig 30. Signal shape for SIGOUT in FeliCa card SAM mode

Fig 31. Signal shape for SIGIN in SAM mode

001aan227

clock

signal on

SIGIN

signal on

antenna

001aan228

clock

demodulated

signal

signal on

SIGOUT

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12.6.2 Waveform shape for ISO/IEC 14443A and MIFARE S2C support

The secure IC, e.g. the SmartMX is connected to the PN512 via the pins SIGOUT and

SIGIN.

The waveform shape at SIGOUT is a digital 13.56 MHz Miller coded signal with levels

between PVSS and PVDD derived out of the external 13.56 MHz carrier signal in case of

the Contactless Card mode or internally generated in terms of Secure Access mode.

The register TxSelReg controls the setting at SIGOUT.

Note: The clock settings for the Secure Access mode and the Contactless Card mode

differ, refer to the description of the bits SAMClockSel in register TestSel1Reg.

The signal at SIGIN is a digital Manchester coded signal according to the requirements of

the ISO/IEC 14443A with the subcarrier frequency of 847.5 kHz generated by the secure

IC.

Fig 32. Signal shape for SIGOUT in MIFARE Card SAM mode

Fig 33. Signal shape for SIGIN in MIFARE Card SAM mode

001aan229

bit

value RF

signal on

antenna

signal on

SIGOUT

01001

001aan230

0011

bit

value

signal on

antenna

signal on

SIGIN

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12.7 Hardware support for FeliCa and NFC polling

12.7.1 Polling sequence functionality for initiator

1. Timer: The PN512 has a timer, which can be programmed in a way that it generates

an interrupt at the end of each timeslot, or if required an interrupt is generated at the

end of the last timeslot.

2. The receiver can be configured in a way to receive continuously. In this mode it can

receive any number of packets. The receiver is ready to receive the next packet

directly after the last packet has been received. This mode is active by setting the bit

RxMultiple in register RxModeReg to 1 and has to be stopped by software.

3. The internal UART adds one byte to the end of every received packet, before it is

transferred into the FIFO-buffer. This byte indicates if the received byte packet is

correct (see register ErrReg). The first byte of each packet contains the length byte of

the packet.

4. The length of one packet is 18 or 20 bytes (+ 1 byte Error-Info). The FIFO has a

length of 64 bytes. This means three packets can be stored in the FIFO at the same

time. If more than three packets are expected, the host controller has to empty the

FIFO, before the FIFO is filled completely. In case of a FIFO-overflow data is lost (See

bit BufferOvfl in register ErrorReg).

12.7.2 Polling sequence functionality for target

1. The host controller has to configure the PN512 with the correct polling response

parameters for the polling command.

2. To activate the automatic polling in Target mode, the AutoColl Command has to be

activated.

3. The PN512 receives the polling command send out by an initiator and answers with

the polling response. The timeslot is selected automatically (The timeslot itself is

randomly generated, but in the range 0 to TSN, which is defined by the Polling

command). The PN512 compares the system code, stored in byte 17 and 18 of the

Config Command with the system code received by the polling command of an

initiator. If the system code is equal, the PN512 answers according to the configured

polling response. The system code FF (hex) acts as a wildcard for the system code

bytes, i.e. a target of a system code 1234 (hex) answers to the polling command with

one of the following system codes 1234 (hex), 12FF (hex), FF34 (hex) or FFFF (hex).

If the system code does not match no answer is sent back by the PN512.

If a valid command is received by the PN512, which is not a Polling command, no

answer is sent back and the command AutoColl is stopped. The received packet is

stored in the FIFO.

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12.7.3 Additional hardware support for FeliCa and NFC

Additionally to the polling sequence support for the Felica mode, the PN512 supports the

check of the Len-byte.

The received Len-byte in accordance to the registers FelNFC1Reg and FelNFC2Reg:

DataLenMin in register FelNFC1Reg defines the minimum length of the accepted packet

length. This register is six bit long. Each bit represents a length of four bytes.

DataLenMax in register FelNFC2Reg defines the maximum length of the accepted

package. This register is six bit long. Each bit represents a length of four bytes. If set to

logic 1 this limit is ignored. If the length is not in the supposed range, the packet is not

transferred to the FIFO and receiving is kept active.

Example 1:

•DataLenMin = 4

–The length shall be greater or equal 16.

•DataLenMax = 5

–The length shall be smaller than 20. Valid area: 16, 17, 18, 19

Example 2:

•DataLenMin = 9

–The length shall be greater or equal 36.

•DataLenMax = 0

–The length shall be smaller than 256. Valid area: 36 to 255

12.7.4 CRC coprocessor

The following CRC coprocessor parameters can be configured:

•The CRC preset value can be either 0000h, 6363h, A671h or FFFFh depending on

the ModeReg register’s CRCPreset[1:0] bits setting

•The CRC polynomial for the 16-bit CRC is fixed to x16 +x

12 +x

5+1

•The CRCResultReg register indicates the result of the CRC calculation. This register

is split into two 8-bit registers representing the higher and lower bytes.

•The ModeReg register’s MSBFirst bit indicates that data will be loaded with the MSB

first.

Table 155. CRC coprocessor parameters

Parameter Value

CRC register length 16-bit CRC

CRC algorithm algorithm according to ISO/IEC 14443 A and ITU-T

CRC preset value 0000h, 6363h, A671h or FFFFh depending on the setting of the

ModeReg register’s CRCPreset[1:0] bits

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13. FIFO buffer

An 8 64 bit FIFO buffer is used in the PN512. It buffers the input and output data stream

between the host and the PN512’s internal state machine. This makes it possible to

manage data streams up to 64 bytes long without the need to take timing constraints into

account.

13.1 Accessing the FIFO buffer

The FIFO buffer input and output data bus is connected to the FIFODataReg register.

Writing to this register stores one byte in the FIFO buffer and increments the internal FIFO

buffer write pointer. Reading from this register shows the FIFO buffer contents stored in

the FIFO buffer read pointer and decrements the FIFO buffer read pointer. The distance

between the write and read pointer can be obtained by reading the FIFOLevelReg

When the microcontroller starts a command, the PN512 can, while the command is in

progress, access the FIFO buffer according to that command. Only one FIFO buffer has

been implemented which can be used for input and output. The microcontroller must

ensure that there are not any unintentional FIFO buffer accesses.

13.2 Controlling the FIFO buffer

The FIFO buffer pointers can be reset by setting FIFOLevelReg register’s FlushBuffer bit

to logic 1. Consequently, the FIFOLevel[6:0] bits are all set to logic 0 and the ErrorReg

accessible allowing the FIFO buffer to be filled with another 64 bytes.

13.3 FIFO buffer status information

The host can get the following FIFO buffer status information:

•Number of bytes stored in the FIFO buffer: FIFOLevelReg register’s FIFOLevel[6:0]

•FIFO buffer almost full warning: Status1Reg register’s HiAlert bit

•FIFO buffer almost empty warning: Status1Reg register’s LoAlert bit

•FIFO buffer overflow warning: ErrorReg register’s BufferOvfl bit. The BufferOvfl bit

can only be cleared by setting the FIFOLevelReg register’s FlushBuffer bit.

The PN512 can generate an interrupt signal when:

•ComIEnReg register’s LoAlertIEn bit is set to logic 1. It activates pin IRQ when

Status1Reg register’s LoAlert bit changes to logic 1.

•ComIEnReg register’s HiAlertIEn bit is set to logic 1. It activates pin IRQ when

Status1Reg register’s HiAlert bit changes to logic 1.

If the maximum number of WaterLevel bytes (as set in the WaterLevelReg register) or less

are stored in the FIFO buffer, the HiAlert bit is set to logic 1. It is generated according to

Equation 3:

(3)

HiAlert 64 FIFOLength–WaterLevel=

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If the number of WaterLevel bytes (as set in the WaterLevelReg register) or less are

stored in the FIFO buffer, the LoAlert bit is set to logic 1. It is generated according to

Equation 4:

(4)

14. Interrupt request system

The PN512 indicates certain events by setting the Status1Reg register’s IRq bit and, if

activated, by pin IRQ. The signal on pin IRQ can be used to interrupt the host using its

interrupt handling capabilities. This allows the implementation of efficient host software.

14.1 Interrupt sources overview

Table 156 shows the available interrupt bits, the corresponding source and the condition

for its activation. The ComIrqReg register’s TimerIRq interrupt bit indicates an interrupt set

by the timer unit which is set when the timer decrements from 1 to 0.

The ComIrqReg register’s TxIRq bit indicates that the transmitter has finished. If the state

changes from sending data to transmitting the end of the frame pattern, the transmitter

unit automatically sets the interrupt bit. The CRC coprocessor sets the DivIrqReg

CRCReady bit = 1.

The ComIrqReg register’s RxIRq bit indicates an interrupt when the end of the received

data is detected. The ComIrqReg register’s IdleIRq bit is set if a command finishes and

the Command[3:0] value in the CommandReg register changes to idle (see Table 157 on

page 98).

The ComIrqReg register’s HiAlertIRq bit is set to logic 1 when the Status1Reg register’s

HiAlert bit is set to logic 1 which means that the FIFO buffer has reached the level

indicated by the WaterLevel[5:0] bits.

The ComIrqReg register’s LoAlertIRq bit is set to logic 1 when the Status1Reg register’s

LoAlert bit is set to logic 1 which means that the FIFO buffer has reached the level

indicated by the WaterLevel[5:0] bits.

The ComIrqReg register’s ErrIRq bit indicates an error detected by the contactless UART

during send or receive. This is indicated when any bit is set to logic 1 in register ErrorReg.

LoAlert FIFOLength WaterLevel=

Table 156. Interrupt sources

Interrupt flag Interrupt source Trigger action

TimerIRq timer unit the timer counts from 1 to 0

TxIRq transmitter a transmitted data stream ends

CRCIRq CRC coprocessor all data from the FIFO buffer has been processed

RxIRq receiver a received data stream ends

IdleIRq ComIrqReg register command execution finishes

HiAlertIRq FIFO buffer the FIFO buffer is almost full

LoAlertIRq FIFO buffer the FIFO buffer is almost empty

ErrIRq contactless UART an error is detected

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15. Timer unit

A timer unit is implemented in the PN512. The external host controller may use this timer

to manage timing relevant tasks. The timer unit may be used in one of the following

configurations:

•Time-out counter

•Watch-dog counter

•Stop watch

•Programmable one-shot

•Periodical trigger

The timer unit can be used to measure the time interval between two events or to indicate

that a specific event occurred after a specific time. The timer can be triggered by events

which will be explained in the following, but the timer itself does not influence any internal

event (e.g. A time-out during data reception does not influence the reception process

automatically). Furthermore, several timer related bits are set and these bits can be used

to generate an interrupt.

Timer

The timer has an input clock of 13.56 MHz (derived from the 27.12 MHz quartz). The timer

consists of two stages: 1 prescaler and 1 counter.

The prescaler is a 12-bit counter. The reload value for TPrescaler can be defined between

0 and 4095 in register TModeReg and TPrescalerReg.

The reload value for the counter is defined by 16 bits in a range of 0 to 65535 in the

The current value of the timer is indicated by the register TCounterValReg.

If the counter reaches 0 an interrupt will be generated automatically indicated by setting

the TimerIRq bit in the register CommonIRqReg. If enabled, this event can be indicated on

the IRQ line. The bit TimerIRq can be set and reset by the host controller. Depending on

the configuration the timer will stop at 0 or restart with the value from register

TReloadReg.

The status of the timer is indicated by bit TRunning in register Status1Reg.

The timer can be manually started by TStartNow in register ControlReg or manually

stopped by TStopNow in register ControlReg.

Furthermore the timer can be activated automatically by setting the bit TAuto in the

The time delay of a timer stage is the reload value +1.

The definition of total time is: t = ((TPrescaler*2+1)*TReload+1)/13.56MHz or if

TPrescaleEven bit is set: t = ((TPrescaler*2+2)*TReload+1)/13.56MHz

Maximum time: TPrescaler = 4095,TReloadVal = 65535

=> (2*4095 +2)*65536/13.56 MHz = 39.59 s

Example:

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To indicate 25 us it is required to count 339 clock cycles. This means the value for

TPrescaler has to be set to TPrescaler = 169.The timer has now an input clock of 25 us.

The timer can count up to 65535 timeslots of each 25 s. For the behaviour in version

1.0, see Section 21 “Errata sheet” on page 106.

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Transmission module

16. Power reduction modes

16.1 Hard power-down

Hard power-down is enabled when pin NRSTPD is LOW. This turns off all internal current

sinks including the oscillator. All digital input buffers are separated from the input pins and

clamped internally (except pin NRSTPD). The output pins are frozen at either a HIGH or

LOW level.

16.2 Soft power-down mode

Soft Power-down mode is entered immediately after the CommandReg register’s

PowerDown bit is set to logic 1. All internal current sinks are switched off, including the

oscillator buffer. However, the digital input buffers are not separated from the input pins

and keep their functionality. The digital output pins do not change their state.

During soft power-down, all register values, the FIFO buffer content and the configuration

keep their current contents.

After setting the PowerDown bit to logic 0, it takes 1024 clocks until the Soft power-down

mode is exited indicated by the PowerDown bit. Setting it to logic 0 does not immediately

clear it. It is cleared automatically by the PN512 when Soft power-down mode is exited.

Remark: If the internal oscillator is used, you must take into account that it is supplied by

pin AVDD and it will take a certain time (tosc) until the oscillator is stable and the clock

cycles can be detected by the internal logic. It is recommended for the serial UART, to first

send the value 55h to the PN512. The oscillator must be stable for further access to the

registers. To ensure this, perform a read access to address 0 until the PN512 answers to

the last read command with the register content of address 0. This indicates that the

PN512 is ready.

16.3 Transmitter power-down mode

The Transmitter Power-down mode switches off the internal antenna drivers thereby,

turning off the RF field. Transmitter power-down mode is entered by setting either the

TxControlReg register’s Tx1RFEn bit or Tx2RFEn bit to logic 0.

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17. Oscillator circuitry

The clock applied to the PN512 provides a time basis for the synchronous system’s

encoder and decoder. The stability of the clock frequency, therefore, is an important factor

for correct operation. To obtain optimum performance, clock jitter must be reduced as

much as possible. This is best achieved using the internal oscillator buffer with the

recommended circuitry.

If an external clock source is used, the clock signal must be applied to pin OSCIN. In this

case, special care must be taken with the clock duty cycle and clock jitter and the clock

quality must be verified.

18. Reset and oscillator start-up time

18.1 Reset timing requirements

The reset signal is filtered by a hysteresis circuit and a spike filter before it enters the

digital circuit. The spike filter rejects signals shorter than 10 ns. In order to perform a reset,

the signal must be LOW for at least 100 ns.

18.2 Oscillator start-up time

If the PN512 has been set to a Power-down mode or is powered by a VDDX supply, the

start-up time for the PN512 depends on the oscillator used and is shown in Figure 35.

The time (tstartup) is the start-up time of the crystal oscillator circuit. The crystal oscillator

start-up time is defined by the crystal.

The time (td) is the internal delay time of the PN512 when the clock signal is stable before

the PN512 can be addressed.

The delay time is calculated by:

(5)

The time (tosc) is the sum of td and tstartup.

Fig 34. Quartz crystal connection

001aan231

PN512

27.12 MHz

OSCOUT OSCIN

td1024

27 s

--------------37.74 s==

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19. PN512 command set

The PN512 operation is determined by a state machine capable of performing a set of

commands. A command is executed by writing a command code (see Table 157) to the

CommandReg register.

Arguments and/or data necessary to process a command are exchanged via the FIFO

buffer.

19.1 General description

The PN512 operation is determined by a state machine capable of performing a set of

commands. A command is executed by writing a command code (see Table 157) to the

CommandReg register.

Arguments and/or data necessary to process a command are exchanged via the FIFO

buffer.

19.2 General behavior

•Each command that needs a data bit stream (or data byte stream) as an input

immediately processes any data in the FIFO buffer. An exception to this rule is the

Transceive command. Using this command, transmission is started with the

BitFramingReg register’s StartSend bit.

•Each command that needs a certain number of arguments, starts processing only

when it has received the correct number of arguments from the FIFO buffer.

•The FIFO buffer is not automatically cleared when commands start. This makes it

possible to write command arguments and/or the data bytes to the FIFO buffer and

then start the command.

•Each command can be interrupted by the host writing a new command code to the

CommandReg register, for example, the Idle command.

Fig 35. Oscillator start-up time

001aak596

tstartup td

tosc

device activation

oscillator

clock stable

clock ready

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19.3 PN512 command overview

19.3.1 PN512 command descriptions

19.3.1.1 Idle

Places the PN512 in Idle mode. The Idle command also terminates itself.

19.3.1.2 Config command

To use the automatic MIFARE Anticollision, FeliCa Polling and NFCID3 the data used for

these transactions has to be stored internally. All the following data have to be written to

the FIFO in this order:

SENS_RES (2 bytes); in order byte 0, byte 1

NFCID1 (3 Bytes); in order byte 0, byte 1, byte 2; the first NFCID1 byte is fixed to 08h and

the check byte is calculated automatically.

SEL_RES (1 Byte)

polling response (2 bytes (shall be 01h, FEh) + 6 bytes NFCID2 + 8 bytes Pad + 2 bytes

system code)

NFCID3 (1 byte)

In total 25 bytes are transferred into an internal buffer.

The complete NFCID3 is 10 bytes long and consists of the 3 NFCID1 bytes, the 6 NFCID2

bytes and the one NFCID3 byte which are listed above.

To read out this configuration the command Config with an empty FIFO-buffer has to be

started. In this case the 25 bytes are transferred from the internal buffer to the FIFO.

Table 157. Command overview

Command Command

code Action

Idle 0000 no action, cancels current command execution

Configure 0001 Configures the PN512 for FeliCa, MIFARE and NFCIP-1

communication

Generate RandomID 0010 generates a 10-byte random ID number

CalcCRC 0011 activates the CRC coprocessor or performs a self test

Transmit 0100 transmits data from the FIFO buffer

NoCmdChange 0111 no command change, can be used to modify the

CommandReg register bits without affecting the command,

for example, the PowerDown bit

Receive 1000 activates the receiver circuits

Transceive 1100 transmits data from FIFO buffer to antenna and automatically

activates the receiver after transmission

AutoColl 1101 Handles FeliCa polling (Card Operation mode only) and

MIFARE anticollision (Card Operation mode only)

MFAuthent 1110 performs the MIFARE standard authentication as a reader

SoftReset 1111 resets the PN512

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The PN512 has to be configured after each power up, before using the automatic

Anticollision/Polling function (AutoColl command). During a hard power down (reset pin)

this configuration remains unchanged.

This command terminates automatically when finished and the active command is idle.

19.3.1.3 Generate RandomID

This command generates a 10-byte random number which is initially stored in the internal

buffer. This then overwrites the 10 bytes in the internal 25-byte buffer. This command

automatically terminates when finished and the PN512 returns to Idle mode.

19.3.1.4 CalcCRC

The FIFO buffer content is transferred to the CRC coprocessor and the CRC calculation is

started. The calculation result is stored in the CRCResultReg register. The CRC

calculation is not limited to a dedicated number of bytes. The calculation is not stopped

when the FIFO buffer is empty during the data stream. The next byte written to the FIFO

buffer is added to the calculation.

The CRC preset value is controlled by the ModeReg register’s CRCPreset[1:0] bits. The

value is loaded in to the CRC coprocessor when the command starts.

This command must be terminated by writing a command to the CommandReg register,

such as, the Idle command.

If the AutoTestReg register’s SelfTest[3:0] bits are set correctly, the PN512 enters Self

Test mode. Starting the CalcCRC command initiates a digital self test. The result of the

self test is written to the FIFO buffer.

19.3.1.5 Transmit

The FIFO buffer content is immediately transmitted after starting this command. Before

transmitting the FIFO buffer content, all relevant registers must be set for data

transmission.

This command automatically terminates when the FIFO buffer is empty. It can be

terminated by another command written to the CommandReg register.

19.3.1.6 NoCmdChange

This command does not influence any running command in the CommandReg register. It

can be used to manipulate any bit except the CommandReg register Command[3:0] bits,

for example, the RcvOff bit or the PowerDown bit.

19.3.1.7 Receive

The PN512 activates the receiver path and waits for a data stream to be received. The

correct settings must be chosen before starting this command.

This command automatically terminates when the data stream ends. This is indicated

either by the end of frame pattern or by the length byte depending on the selected frame

type and speed.

Remark: If the RxModeReg register’s RxMultiple bit is set to logic 1, the Receive

command will not automatically terminate. It must be terminated by starting another

command in the CommandReg register.

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19.3.1.8 Transceive

This command continuously repeats the transmission of data from the FIFO buffer and the

reception of data from the RF field. The first action is transmit and after transmission the

command is changed to receive a data stream.

Each transmit process must be started by setting the BitFramingReg register’s StartSend

bit to logic 1. This command must be cleared by writing any command to the

CommandReg register.

Remark: If the RxModeReg register’s RxMultiple bit is set to logic 1, the Transceive

command never leaves the receive state because this state cannot be cancelled

automatically.

19.3.1.9 AutoColl

This command automatically handles the MIFARE activation and the FeliCa polling in the

Card Operation mode. The bit Initiator in the register ControlReg has to be set to logic 0

for correct operation. During this command also the mode detector is active if not

deactivated by setting the bit ModeDetOff in the ModeReg register. After the mode

detector detects a mode, all the mode dependent registers are set according to the

received data. In case of no external RF field the command resets the internal state

machine and returns to the initial state but it will not be terminated. When the command

terminates the transceive command gets active.

During protocol processing the IRQ bits are not supported. Only the last received frame

will serve the IRQ’s. The treatment of the TxCRCEn and RxCRCEn bits is different to the

protocol. During ISO/IEC 14443A activation the enable bits are defined by the command

AutoColl. The changes cannot be observed at the register TXModeReg and RXModeReg.

After the Transceive command is active, the value of the register bit is relevant.

The FIFO will also receive the two CRC check bytes of the last command even if they

already checked and correct, if the state machine (Anticollision and Select routine) has to

not been executed and 106 kbit is detected.

During Felica activation the register bit is always relevant and is not overruled by the

command settings. This command can be cleared by software by writing any other

command to the CommandReg register, e.g. the idle command. Writing the same content

again to the CommandReg register resets the state machine.

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NFCIP-1 106 kbps Passive Communication mode:

The MIFARE anticollision is finished and the command has automatically changed to

Transceive. The FIFO contains the ATR_REQ frame including the start byte F0h. The bit

TargetActivated in the Status2Reg register is set to logic 1.

NFCIP-1 212/424 kbps Passive Communication mode:

The FeliCa polling command is finished and the command has automatically changed to

Transceive. The FIFO contains the ATR_REQ. The bit TargetActivated in the Status2Reg

NFCIP-1 106/212/424 kbps Active Communication mode:

This command is changing the automatically to the command Transceive. The FIFO

contains the ATR REQ The bit TargetActivated in the Status2Reg register is set to logic 0.

For 106 kbps only, the first byte in the FIFO indicates the start byte F0h and the CRC is

added to the FIFO.

Fig 36. Autocoll Command

NFCIP-1 106 kB aud

ISO14443-3 NPCIP-1 > 106 kB aud

FELICA

IDLE MODEO

MODE

detection

RXF

raming

MFHalted = 1

HALT

nAC

SELECT

nSELECT

HLTA

polling,

polling response

next frame

received next frame

received

REQA, WUPA

READY

ACTIVE

WUPA

SELECT SELECT

READY*

ACTIVE*

TRANSCEIVE

wait for

transmit

next frame

received

HLTA

REQA,

WUPA,

AC,

nAC,

SELECT,

nSELECT,

error

REQA,

AC,

nAC,

SELECT,

nSELECT,

HLTA

REQA,

WUPA,

nAC,

nSELECT,

HLTA,

error

REQA,

WUPA,

nAC,

nSELECT,

HLTA,

error

REQA,

WUPA,

AC,

SELECT,

nSELECT,

error

00 10

aaa-001826

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Transmission module

MIFARE (Card Operation mode):

The MIFARE anticollision is finished and the command has automatically changed to

transceive. The FIFO contains the first command after the Select. The bit TargetActivated

in the Status2Reg register is set to logic 1.

Felica (Card Operation mode):

The FeliCa polling command is finished and the command has automatically changed to

transceive. The FIFO contains the first command followed after the Poling by the FeliCa

protocol. The bit TargetActivated in the Status2Reg register is set to logic 1.

19.3.1.10 MFAuthent

This command manages MIFARE authentication to enable a secure communication to

any MIFARE Mini, MIFARE 1K and MIFARE 4K card. The following data is written to the

FIFO buffer before the command can be activated:

•Authentication command code (60h, 61h)

•Block address

•Sector key byte 0

•Sector key byte 1

•Sector key byte 2

•Sector key byte 3

•Sector key byte 4

•Sector key byte 5

•Card serial number byte 0

•Card serial number byte 1

•Card serial number byte 2

•Card serial number byte 3

In total 12 bytes are written to the FIFO.

Remark: When the MFAuthent command is active all access to the FIFO buffer is

blocked. However, if there is access to the FIFO buffer, the ErrorReg register’s WrErr bit is

set.

This command automatically terminates when the MIFARE card is authenticated and the

Status2Reg register’s MFCrypto1On bit is set to logic 1.

This command does not terminate automatically if the card does not answer, so the timer

must be initialized to automatic mode. In this case, in addition to the IdleIRq bit, the

TimerIRq bit can be used as the termination criteria. During authentication processing, the

RxIRq bit and TxIRq bit are blocked. The Crypto1On bit is only valid after termination of

the MFAuthent command, either after processing the protocol or writing Idle to the

CommandReg register.

If an error occurs during authentication, the ErrorReg register’s ProtocolErr bit is set to

logic 1 and the Status2Reg register’s Crypto1On bit is set to logic 0.

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19.3.1.11 SoftReset

This command performs a reset of the device. The configuration data of the internal buffer

remains unchanged. All registers are set to the reset values. This command automatically

terminates when finished.

Remark: The SerialSpeedReg register is reset and therefore the serial data rate is set to

9.6 kBd.

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20. Testsignals

20.1 Selftest

The PN512 has the capability to perform a digital selftest. To start the selftest the following

procedure has to be performed:

1. Perform a soft reset.

2. Clear the internal buffer by writing 25 bytes of 00h and perform the Config Command.

3. Enable the Selftest by writing the value 09h to the register AutoTestReg.

4. Write 00h to the FIFO.

5. Start the Selftest with the CalcCRC Command.

6. The Selftest will be performed.

7. When the Selftest is finished, the FIFO contains the following bytes:

Version 1.0 has a different Selftest answer, explained in Section 21.

Correct answer for VersionReg equal to 82h:

00h, EBh, 66h, BAh, 57h, BFh, 23h, 95h, D0h, E3h, 0Dh, 3Dh, 27h, 89h, 5Ch, DEh,

9Dh, 3Bh, A7h, 00h, 21h, 5Bh, 89h, 82h, 51h, 3Ah, EBh, 02h, 0Ch, A5h, 00h,

49h, 7Ch, 84h, 4Dh, B3h, CCh, D2h, 1Bh, 81h, 5Dh, 48h, 76h, D5h, 71h, 61h,

21h, A9h, 86h, 96h, 83h, 38h, CFh, 9Dh, 5Bh, 6Dh, DCh, 15h, BAh, 3Eh, 7Dh,

95h, 3Bh, 2Fh

20.2 Testbus

The testbus is implemented for production test purposes. The following configuration can

be used to improve the design of a system using the PN512. The testbus allows to route

internal signals to the digital interface. The testbus signals are selected by accessing

TestBusSel in register TestSel2Reg.

Table 158. Testsignal routing (TestSel2Reg = 07h)

Pins D6 D5 D4 D3 D2 D1 D0

Testsignal sdata scoll svalid sover RCV_reset RFon,

filtered

Envelope

Table 159. Description of Testsignals

Pins Testsignal Description

D6 sdata shows the actual received data stream.

D5 scoll shows if in the actual bit a collision has been detected (106 kbit only)

D4 svalid shows if sdata and scoll are valid

D3 sover shows that the receiver has detected a stop condition

(ISO/IEC 14443A/ MIFARE mode only).

D2 RCV_reset shows if the receiver is reset

D1 RFon, filtered shows the value of the internal RF level detector

D0 Envelope shows the output of the internal coder

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20.3 Testsignals at pin AUX

Table 160. Testsignal routing (TestSel2Reg = 0Dh)

Pins D6 D5 D4 D3 D2 D1 D0

Testsignal clkstable clk27/8 clk27rf/8 clkrf13rf/4 clk27 clk27rf clk13rf

Table 161. Description of Testsignals

Pins Testsignal Description

D6 clkstable shows if the oscillator delivers a stable signal.

D5 clk27/8 shows the output signal of the oscillator divided by 8

D4 clk27rf/8 shows the clk27rf signal divided by 8

D3 clkrf13/4 shows the clk13rf divided by 4.

D2 clk27 shows the output signal of the oscillator

D1 clk27rf shows the RF clock multiplied by 2.

D0 clk13rf shows the RF clock of 13.56 MHz

Table 162. Testsignal routing (TestSel2Reg = 19h)

Pins D6 D5 D4 D3 D2 D1 D0

Testsignal - TRunning - - - - -

Table 163. Description of Testsignals

Pins Testsignal Description

D6 - -

D5 TRunning TRunning stops 1 clockcycle after TimerIRQ is raised

D4 - -

D3 - -

D2 - -

D1 - -

D0 - -

Table 164. Testsignals description

SelAux Description for Aux1 / Aux2

0000 Tristate

0001 DAC: register TestDAC 1/2

0010 DAC: testsignal corr1

0011 DAC: testsignal corr2

0100 DAC: testsignal MinLevel

0101 DAC: ADC_I

0110 DAC: ADC_Q

0111 DAC: testsignal ADC_I combined with ADC_Q

1000 Testsignal for production test

1001 SAM clock

1010 High

1011 low

1100 TxActive

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Each signal can be switched to pin AUX1 or AUX2 by setting SelAux1 or SelAux2 in the

Note: The DAC has a current output, it is recommended to use a 1 k pull-down

resistance at pins AUX1/AUX2.

20.4 PRBS

Enables the PRBS9 or PRBS15 sequence according to ITU-TO150. To start the

transmission of the defined datastream the command send has to be activated. The

preamble/Sync byte/start bit/parity bit are generated automatically depending on the

selected mode.

Note: All relevant register to transmit data have to be configured before entering PRBS

mode according ITU-TO150.

21. Errata sheet

This data sheet is describing the functionality for version 2.0 and the industrial version.

This chapter lists all differences from version 1.0 to version 2.0:

The value of the version in Section 9.2.4.8 is set to80h.

The behaviour ‘RFU’ for the register is undefined.

The answer to the Selftest (see Section 20.1) for version 1.0 (VersionReg equal to 80h):

00h, AAh, E3h, 29h, 0Ch, 10h, 29zhh, 6Bh,

76h, 8Dh, AFh, 4Bh, A2h, DAh, 76h, 99h

C7h, 5Eh, 24h, 69h, D2h, BAh, FAh, BCh

3Eh, DAh, 96h, B5h, F5h, 94h, B0h, 3Ah

4Eh, C3h, 9Dh, 94h, 76h, 4Ch, EAh, 5Eh

38h, 10h, 8Fh, 2Dh, 21h, 4Bh, 52h, BFh

4Eh, C3h, 9Dh, 94h, 76h, 4Ch, EAh, 5Eh

38h, 10h, 8Fh, 2Dh, 21h, 4Bh, 52h, BFh

FBh, F4h, 19h, 94h, 82h, 5Ah, 72h, 9Dh

BAh, 0Dh, 1Fh, 17h, 56h, 22h, B9h, 08h

Only the default setting for the prescaler (see Section 15 “Timer unit” on page 93): t =

((TPreScaler*2+1)*TReload+1)/13,56 MHz is supported. As such only the formula fTimer =

13,56 MHz/(2*PreScaler+1) is applicable for the TPrescalerHigh in Table 99 “Description

of TModeReg bits” on page 54 and TPrescalerLo in Table 100 “TPrescalerReg register

(address 2Bh); reset value: 00h, 00000000b” on page 55. As there is no option for the

prescaler available, also the TPrescalEven is not available Section 9.2.2.10 on page 42.

This bit is set to ‘RFU’.

1101 RxActive

1110 Subcarrier detected

1111 TstBusBit

Table 164. Testsignals description

SelAux Description for Aux1 / Aux2

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Especially when using time slot protocols, it is needed that the error flag is copied into the

status information of the frame. When using the RxMultiple feature (see Section 9.2.2.4

on page 36) within version 1.0 the protocol error flag is not included in the status

information for the frame. In addition the CRCOk is copied instead of the CRCErr. This

can be a problem in frames without length information e.g. ISO/IEC 14443-B.

The version 1.0 does not accept a Type B EOF if there is no 1 bit after the series of 0 bits,

as such the configuration within Section 9.2.2.15 “TypeBReg” on page 47 bit 4 for

RxEOFReq does not exist. In addition the IC only has the possibility to select the

minimum or maximum timings for SOF/EOF generation defined in ISO/IEC14443B. As

such the configuration possible in version 2.0 through the EOFSOFAdjust bit (see Section

9.2.4.7 “AutoTestReg” on page 61) does not exist and the configuration is limited to only

setting minimum and maximum length according ISO/IEC 14443-B, see Section 9.2.2.15

“TypeBReg” on page 47, bit 4.

22. Application design-in information

The figure below shows a typical circuit diagram, using a complementary antenna

connection to the PN512.

The antenna tuning and RF part matching is described in the application note “NFC

Transmission Module Antenna and RF Design Guide”.

Fig 37. Typical circuit diagram

AVDD TVDD

VMID

supply

TX1

TVSS

TX2

DVSS

DVDD

PVDD

SVDD

AVSS

IRQ

NRSTPD

R1R2

CRX

Cvmid

001aan232

27.12 MHz

OSCIN OSCOUT

HOST

CONTROLLER

interface PN512

antenna

Lant

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23. Limiting values

24. Recommended operating conditions

[1] Supply voltages below 3 V reduce the performance (the achievable operating distance).

[2] VDDA, VDDD and VDD(TVDD) must always be the same voltage.

[3] VDD(PVDD) must always be the same or lower voltage than VDDD.

Table 165. Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134).

Symbol Parameter Conditions Min Max Unit

VDDA analog supply voltage 0.5 +4.0 V

VDDD digital supply voltage 0.5 +4.0 V

VDD(PVDD) PVDD supply voltage 0.5 +4.0 V

VDD(TVDD) TVDD supply voltage 0.5 +4.0 V

VDD(SVDD) SVDD supply voltage 0.5 +4.0 V

VIinput voltage all input pins except pins SIGIN

and RX

VSS(PVSS)  0.5 VDD(PVDD) + 0.5 V

pin MFIN VSS(PVSS)  0.5 VDD(SVDD) + 0.5 V

Ptot total power dissipation per package; and VDDD in shortcut

mode

- 200 mW

Tjjunction temperature - 100 C

VESD electrostatic discharge voltage HBM; 1500 , 100 pF;

JESD22-A114-B

- 2000 V

MM; 0.75 H, 200 pF;

JESD22-A114-A

- 200 V

Field induced model;

JESC22-C101-A

500 V

Table 166. Operating conditions

Symbol Parameter Conditions Min Typ Max Unit

VDDA analog supply voltage VDD(PVDD) VDDA = VDDD = VDD(TVDD);

VSSA =V

SSD =V

SS(PVSS) =V

SS(TVSS) =0V

[1][2] 2.5- 3.6V

VDDD digital supply voltage VDD(PVDD) VDDA = VDDD = VDD(TVDD);

VSSA =V

SSD =V

SS(PVSS) =V

SS(TVSS) =0V

[1][2] 2.5- 3.6V

VDD(TVDD) TVDD supply voltage VDD(PVDD) VDDA = VDDD = VDD(TVDD);

VSSA =V

SSD =V

SS(PVSS) =V

SS(TVSS) =0V

[1][2] 2.5- 3.6V

VDD(PVDD) PVDD supply voltage VDD(PVDD) VDDA = VDDD = VDD(TVDD);

VSSA =V

SSD =V

SS(PVSS) =V

SS(TVSS) =0V

[3] 1.6- 3.6V

VDD(SVDD) SVDD supply voltage VSSA =V

SSD =V

SS(PVSS) =V

SS(TVSS) =0V 1.6 - 3.6 V

Tamb ambient temperature HVQFN32, HVQFN40 30 - +85 C

Industrial version:

Tamb ambient temperature HVQFN32 40 - +90 C

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25. Thermal characteristics

26. Characteristics

Table 167. Thermal characteristics

Symbol Parameter Conditions Package Typ Unit

Rthj-a Thermal resistance from

junction to ambient

In still air with exposed pad

soldered on a 4 layer Jedec PCB

In still air

HVQFN32 40 K/W

HVQFN40 35 K/W

Table 168. Characteristics

Symbol Parameter Conditions Min Typ Max Unit

Input characteristics

Pins A0, A1 and NRSTPD

ILI input leakage current 1-+1 A

VIH HIGH-level input voltage 0.7VDD(PVDD) -- V

VIL LOW-level input voltage - - 0.3VDD(PVDD) V

Pin SIGIN

ILI input leakage current 1-+1 A

VIH HIGH-level input voltage 0.7VDD(SVDD) -- V

VIL LOW-level input voltage - - 0.3VDD(SVDD) V

Pin ALE

ILI input leakage current 1-+1 A

VIH HIGH-level input voltage 0.7VDD(PVDD) -- V

VIL LOW-level input voltage - - 0.3VDD(PVDD) V

Pin RX[1]

Viinput voltage 1-V

DDA +1 V

Ciinput capacitance VDDA = 3 V; receiver active;

VRX(p-p) = 1V; 1.5V (DC)

offset

-10- pF

Riinput resistance VDDA = 3 V; receiver active;

VRX(p-p) =1V; 1.5V (DC)

offset

- 350 - 

Input voltage range; see Figure 38

Vi(p-p)(min) minimum peak-to-peak input

voltage

Manchester encoded;

VDDA =3V

- 100 - mV

Vi(p-p)(max) maximum peak-to-peak input

voltage

Manchester encoded;

VDDA =3V

-4- V

Input sensitivity; see Figure 38

Vmod modulation voltage minimum Manchester

encoded; VDDA =3V;

RxGain[2:0] = 111b (48 dB)

-5- mV

Pin OSCIN

ILI input leakage current 1-+1 A

VIH HIGH-level input voltage 0.7VDDA -- V

VIL LOW-level input voltage - - 0.3VDDA V

Product data sheet

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Transmission module

Ciinput capacitance VDDA = 2.8 V; DC = 0.65 V;

AC = 1 V (p-p)

-2- pF

Input/output characteristics

pins D1, D2, D3, D4, D5, D6 and D7

ILI input leakage current 1-+1 A

VIH HIGH-level input voltage 0.7VDD(PVDD) -- V

VIL LOW-level input voltage - - 0.3VDD(PVDD) V

VOH HIGH-level output voltage VDD(PVDD) =3V; I

O=4mA V

DD(PVDD) 

0.4

-V

DD(PVDD) V

VOL LOW-level output voltage VDD(PVDD) =3V; I

O=4mA V

SS(PVSS) -V

SS(PVSS) +

0.4

IOH HIGH-level output current VDD(PVDD) =3V - - 4 mA

IOL LOW-level output current VDD(PVDD) =3V - - 4 mA

Output characteristics

Pin SIGOUT

VOH HIGH-level output voltage VDD(SVDD) =3V; I

O=4mA V

DD(SVDD) 

0.4

-V

DD(SVDD) V

VOL LOW-level output voltage VDD(SVDD) =3V; I

O=4mA V

SS(PVSS) -V

SS(PVSS) +

0.4

IOL LOW-level output current VDD(SVDD) =3V - - 4 mA

IOH HIGH-level output current VDD(SVDD) =3V - - 4 mA

Pin IRQ

VOH HIGH-level output voltage VDD(PVDD) =3V; I

O=4mA V

DD(PVDD) 

0.4

-V

DD(PVDD) V

VOL LOW-level output voltage VDD(PVDD) =3V; I

O=4mA V

SS(PVSS) -V

SS(PVSS) +

0.4

IOL LOW-level output current VDD(PVDD) =3V - - 4 mA

IOH HIGH-level output current VDD(PVDD) =3V - - 4 mA

Pins AUX1 and AUX2

VOH HIGH-level output voltage VDDD =3V; I

O=4mA V

DDD  0.4 - VDDD V

VOL LOW-level output voltage VDDD =3V; I

O=4mA V

SS(PVSS) -V

SS(PVSS) +

0.4

IOL LOW-level output current VDDD =3V - - 4 mA

IOH HIGH-level output current VDDD =3V - - 4 mA

Table 168. Characteristics …continued

Symbol Parameter Conditions Min Typ Max Unit

Product data sheet

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Transmission module

Pins TX1 and TX2

VOL LOW-level output voltage VDD(TVDD) =3V;

IDD(TVDD) =32mA;

CWGsP[5:0] = 0Fh

- - 0.15 V

VDD(TVDD) =3V;

IDD(TVDD) =80mA;

CWGsP[5:0] = 0Fh

--0.4V

VDD(TVDD) = 2.5 V;

IDD(TVDD) =32mA;

CWGsP[5:0] = 0Fh

- - 0.24 V

VDD(TVDD) = 2.5 V;

IDD(TVDD) =80mA;

CWGsP[5:0] = 0Fh

- - 0.64 V

VOH HIGH-level output voltage VDD(TVDD) =3V;

IDD(TVDD) =32mA;

CWGsP[5:0] = 3Fh

VDD(TVDD) 

0.15

-- V

VDD(TVDD) =3V;

IDD(TVDD) =80mA;

CWGsP[5:0] = 3Fh

VDD(TVDD) 

0.4

-- V

VDD(TVDD) = 2.5 V;

IDD(TVDD) =32mA;

CWGsP[5:0] = 3Fh

VDD(TVDD) 

0.24

-- V

VDD(TVDD) = 2.5 V;

IDD(TVDD) =80mA;

CWGsP[5:0] = 3Fh

VDD(TVDD) 

0.64

-- V

Industrial version:

VOL LOW-level output voltage VDD(TVDD) = 2.5 V;

IDD(TVDD) =32mA;

CWGsP[5:0] = 3Fh

- - 0.18 V

VDD(TVDD) = 2.5 V;

IDD(TVDD) =80mA;

CWGsP[5:0] = 3Fh

--0.44V

VOH HIGH-level output voltage VDD(TVDD) =3V;

IDD(TVDD) =32mA;

CWGsP[5:0] = 3Fh

VDD(TVDD) 

0.18

-- V

VDD(TVDD) =3V;

IDD(TVDD) =80mA;

CWGsP[5:0] = 3Fh

VDD(TVDD) 

0.44

-- V

Output resistance for TX1/TX2,

Industrial Version:

ROP,01H High level output resistance TVDD = 3 V, VTX = TVDD -

100 mV, CWGsP = 01h

123 180 261 

ROP,02H High level output resistance TVDD = 3 V, VTX = TVDD -

100 mV, CWGsP = 02h

61 90 131 

ROP,04H High level output resistance TVDD = 3 V, VTX = TVDD -

100 mV, CWGsP = 04h

30 46 68 

ROP,08H High level output resistance TVDD = 3 V, VTX = TVDD -

100 mV, CWGsP = 08h

15 23 35 

Table 168. Characteristics …continued

Symbol Parameter Conditions Min Typ Max Unit

Product data sheet

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Transmission module

ROP,10H High level output resistance TVDD = 3 V, VTX = TVDD -

100 mV, CWGsP = 10h

7.5 12 19 

ROP,20H High level output resistance TVDD = 3 V, VTX = TVDD -

100 mV, CWGsP = 20h

4.2 6 9 

ROP,3FH High level output resistance TVDD = 3 V, VTX = TVDD -

100 mV, CWGsP = 3Fh

235 

RON,10H Low level output resistance TVDD = 3 V, VTX = TVDD -

100 mV, CWGsN = 10h

30 46 68 

RON,20H Low level output resistance TVDD = 3 V, VTX = TVDD -

100 mV, CWGsN = 20h

15 23 35 

RON,40H Low level output resistance TVDD = 3 V, VTX = TVDD -

100 mV, CWGsN = 40h

7.5 12 19 

RON,80H Low level output resistance TVDD = 3 V, VTX = TVDD -

100 mV, CWGsN = 80h

4.2 6 9 

RON,F0H Low level output resistance TVDD = 3 V, VTX = TVDD -

100 mV, CWGsN = F0h

235 

Current consumption

Ipd power-down current VDDA =V

DDD = VDD(TVDD) =

VDD(PVDD) =3V

hard power-down; pin

NRSTPD set LOW

[2] --5A

soft power-down; RF

level detector on

[2] --10A

IDD(PVDD) PVDD supply current pin PVDD [3] --40mA

IDD(TVDD) TVDD supply current pin TVDD; continuous wave [4][5][6] -60100mA

IDD(SVDD) SVDD supply current pin SVDD [7] --4mA

IDDD digital supply current pin DVDD; VDDD =3V - 6.5 9 mA

IDDA analog supply current pin AVDD; VDDA =3V,

CommandReg register’s

RcvOff bit = 0

-710mA

pin AVDD; receiver

switched off; VDDA =3V,

CommandReg register’s

RcvOff bit = 1

-35mA

Industrial version:

IDDD digital supply current pin DVDD; VDDD =3V - 6.5 9,5 mA

Ipd power-down current VDDA =V

DDD = VDD(TVDD) =

VDD(PVDD) =3V

hard power-down; pin

NRSTPD set LOW

[2] --15A

soft power-down; RF

level detector on

[2] --30A

Clock frequency

fclk clock frequency - 27.12 - MHz

clk clock duty cycle 40 50 60 %

tjit jitter time RMS - - 10 ps

Table 168. Characteristics …continued

Symbol Parameter Conditions Min Typ Max Unit

Product data sheet

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[1] The voltage on pin RX is clamped by internal diodes to pins AVSS and AVDD.

[2] Ipd is the total current for all supplies.

[3] IDD(PVDD) depends on the overall load at the digital pins.

[4] IDD(TVDD) depends on VDD(TVDD) and the external circuit connected to pins TX1 and TX2.

[5] During typical circuit operation, the overall current is below 100 mA.

[6] Typical value using a complementary driver configuration and an antenna matched to 40  between pins TX1 and TX2 at 13.56 MHz.

[7] IDD(SVDD) depends on the load at pin MFOUT.

26.1 Timing characteristics

Crystal oscillator

VOH HIGH-level output voltage pin OSCOUT - 1.1 - V

VOL LOW-level output voltage pin OSCOUT - 0.2 - V

Ciinput capacitance pin OSCOUT - 2 - pF

pin OSCIN - 2 - pF

Typical input requirements

fxtal crystal frequency - 27.12 - MHz

ESR equivalent series resistance - - 100 

CLload capacitance - 10 - pF

Pxtal crystal power dissipation - 50 100 W

Table 168. Characteristics …continued

Symbol Parameter Conditions Min Typ Max Unit

Fig 38. Pin RX input voltage range

Table 169. SPI timing characteristics

Symbol Parameter Conditions Min Typ Max Unit

tWL pulse width LOW line SCK 50 - - ns

tWH pulse width HIGH line SCK 50 - - ns

th(SCKH-D) SCK HIGH to data input

hold time

SCK to changing

MOSI

25 - - ns

Product data sheet

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tsu(D-SCKH) data input to SCK HIGH

set-up time

changing MOSI to

SCK

25 - - ns

th(SCKL-Q) SCK LOW to data output

hold time

SCK to changing

MISO

- - 25 ns

t(SCKL-NSSH) SCK LOW to NSS HIGH

time

0- - ns

Table 170. I2C-bus timing in Fast mode

Symbol Parameter Conditions Fast mode High-speed

mode Unit

Min Max Min Max

fSCL SCL clock frequency 0 400 0 3400 kHz

tHD;STA hold time (repeated) START

condition

after this period,

the first clock pulse

is generated

600 - 160 - ns

tSU;STA set-up time for a repeated

START condition

600 - 160 - ns

tSU;STO set-up time for STOP condition 600 - 160 - ns

tLOW LOW period of the SCL clock 1300 - 160 - ns

tHIGH HIGH period of the SCL clock 600 - 60 - ns

tHD;DAT data hold time 0 900 0 70 ns

tSU;DAT data set-up time 100 - 10 - ns

trrise time SCL signal 20 300 10 40 ns

tffall time SCL signal 20 300 10 40 ns

trrise time SDA and SCL

signals

20 300 10 80 ns

tffall time SDA and SCL

signals

20 300 10 80 ns

tBUF bus free time between a STOP

and START condition

1.3 - 1.3 - s

Table 169. SPI timing characteristics …continued

Symbol Parameter Conditions Min Typ Max Unit

Product data sheet

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Remark: The signal NSS must be LOW to be able to send several bytes in one data stream.

To send more than one data stream NSS must be set HIGH between the data streams.

Fig 39. Timing diagram for SPI

Fig 40. Timing for Fast and Standard mode devices on the I2C-bus

001aaj634

tSCKL tSCKH tSCKL

tDXSH tSHDX tDXSH

tSLDX

tSLNH

MOSI

SCK

MISO

MSB

LSB

NSS

001aaj635

SDA

SCL

tLOW tf

tSP tr

tHD;STA tHD;DAT

tHD;STA

trtHIGH

tSU;DAT

SSrPS

tSU;STA

tSU;STO

tBUF

Product data sheet

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26.2 8-bit parallel interface timing

26.2.1 AC symbols

Each timing symbol has five characters. The first character is always 't' for time. The other

characters indicate the name of a signal or the logic state of that signal (depending on

position):

Example: tAVLL = time for address valid to ALE low

26.2.2 AC operating specification

26.2.2.1 Bus timing for separated Read/Write strobe

Table 171. AC symbols

Designation Signal Designation Logic Level

A address H HIGH

D data L LOW

W NWR or nWait Z high impedance

R NRD or R/NW or nWrite X any level or data

L ALE or AS V any valid signal or data

C NCS N NSS

S NDS or nDStrb and nAStrb, SCK

Table 172. Timing specification for separated Read/Write strobe

Symbol Parameter Min Max Unit

tLHLL ALE pulse width 10 - ns

tAVLL Multiplexed Address Bus valid to ALE low (Address Set Up Time) 5 - ns

tLLAX Multiplexed Address Bus valid after ALE low (Address Hold Time) 5 - ns

tLLWL ALE low to NWR, NRD low 10 - ns

tCLWL NCS low to NRD, NWR low 0 - ns

tWHCH NRD, NWR high to NCS high 0 - ns

tRLDV NRD low to DATA valid - 35 ns

tRHDZ NRD high to DATA high impedance - 10 ns

tDVWH DATA valid to NWR high 5 - ns

tWHDX DATA hold after NWR high (Data Hold Time) 5 - ns

tWLWH NRD, NWR pulse width 40 - ns

tAVWL Separated Address Bus valid to NRD, NWR low (Set Up Time) 30 - ns

tWHAX Separated Address Bus valid after NWR high (Hold Time) 5 - ns

tWHWL period between sequenced read/write accesses 40 - ns

Product data sheet

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Transmission module

Remark: For separated address and data bus the signal ALE is not relevant and the

multiplexed addresses on the data bus don’t care.

For the multiplexed address and data bus the address lines A0 to A3 have to be

connected as described in chapter Automatic host controller Interface Type Detection.

26.2.2.2 Bus timing for common Read/Write strobe

Fig 41. Timing diagram for separated Read/Write strobe

001aan233

tLHLL

tCLWL

tLLWL

tWHWL tWLWH tWHWL

tWHDX

tRHDZ

tWLDV

tRLDV

tWHCH

tWHAX

tAVLL tLLAX

tAVWL

ALE

NCS

NWR

NRD

D0...D7 D0...D7

A0...A3

multiplexed

addressbus

A0...A3

SEPARATED ADDRESSBUS A0...A3

Table 173. Timing specification for common Read/Write strobe

Symbol Parameter Min Max Unit

tLHLL AS pulse width 10 - ns

tAVLL Multiplexed Address Bus valid to AS low (Address Set Up Time) 5 - ns

tLLAX Multiplexed Address Bus valid after AS low (Address Hold Time) 5 - ns

tLLSL AS low to NDS low 10 - ns

tCLSL NCS low to NDS low 0 - ns

tSHCH NDS high to NCS high 0 - ns

tSLDV,R NDS low to DATA valid (for read cycle) - 35 ns

tSHDZ NDS low to DATA high impedance (read cycle) - 10 ns

tDVSH DATA valid to NDS high (for write cycle) 5 - ns

tSHDX DATA hold after NDS high (write cycle, Hold Time) 5 - ns

tSHRX R/NW hold after NDS high 5 - ns

tSLSH NDS pulse width 40 - ns

tAVSL Separated Address Bus valid to NDS low (Hold Time) 30 - ns

tSHAX Separated Address Bus valid after NDS high (Set Up Time) 5 - ns

Product data sheet

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Remark: For separated address and data bus the signal ALE is not relevant and the

multiplexed addresses on the data bus don’t care. For the multiplexed address and data

bus the address lines A0 to A3 have to be connected as described in Automatic

-Controller Interface Type Detection.

Fig 42. Timing diagram for common Read/Write strobe

SEPARATED ADDRESSBUS A0...A3

multiplexed

addressbus

A0...A3

ALE

tLHLL

tCLSL

R/NW

NDS

D0...D7

A0...A3

NCS

tSHCH

tSHRX

tRVSL

tLLSL

tSLSH tSHSL

tAVLL tLLAX

tSLDV, R

tSLDV, W tSHDX

tSHDZ

tSHAX

tAVSL

tSHSL

001aan234

Product data sheet

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27. Package information

The PN512 can be delivered in 2 different packages.

Table 174. Package information

Package Remarks

HVQFN32 8-bit parallel interface not supported

HVQFN40 Supports the 8-bit parallel interface

Product data sheet

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28. Package outline

Fig 43. Package outline package version (HVQFN32)

0.51

A1Eh

UNIT ye

0.2

REFERENCES

OUTLINE

VERSION EUROPEAN

PROJECTION ISSUE DATE

IEC JEDEC JEITA

mm 5.1

4.9

3.25

2.95

5.1

4.9 3.25

2.95

3.5

0.30

0.18

0.05

0.00 0.05 0.1

DIMENSIONS (mm are the original dimensions)

SOT617-1 MO-220- - - - - -

0.5

0.3

0.1

0.05

0 2.5 5 mm

scale

SOT617-1

HVQFN32: plastic thermal enhanced very thin quad flat package; no leads;

32 terminals; body 5 x 5 x 0.85 mm

A(1)

max.

AA1c

detail X

y1C

916

32 25

terminal 1

index area

terminal 1

index area

01-08-08

02-10-18

1/2 e

1/2 e AC

E(1)

Note

1. Plastic or metal protrusions of 0.075 mm maximum per side are not included.

D(1)

Product data sheet

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Fig 44. Package outline package version (HVQFN40)

terminal 1

index area

0.51

A1Eh

UNIT ye

0.2

REFERENCES

OUTLINE

VERSION EUROPEAN

PROJECTION ISSUE DATE

IEC JEDEC JEITA

mm 6.1

5.9

4.25

3.95

6.1

5.9 4.25

3.95

4.5

0.30

0.18

0.05

0.00 0.05 0.1

DIMENSIONS (mm are the original dimensions)

SOT618-1 MO-220- - - - - -

0.5

0.3

0.1

0.05

0 2.5 5 mm

scale

SOT618-1

HVQFN40: plastic thermal enhanced very thin quad flat package; no leads;

40 terminals; body 6 x 6 x 0.85 mm

A(1)

max.

AA1c

detail X

y1C

11 20

40 31

01-08-08

02-10-22

terminal 1

index area

1/2 e

Note

1. Plastic or metal protrusions of 0.075 mm maximum per side are not included.

D(1) E(1)

Product data sheet

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29. Abbreviations

30. Glossary

Modulation index — Defined as the voltage ratio (Vmax  Vmin) / (Vmax + Vmin).

Load modulation index — Defined as the voltage ratio for the card

(Vmax Vmin)/(V

max +V

min) measured at the card’s coil.

Initiator — Generates RF field at 13.56 MHz and starts the NFCIP-1 communication.

Target — Responds to command either using load modulation scheme (RF field

generated by Initiator) or using modulation of self generated RF field (no RF field

generated by initiator).

31. References

[1] Application note — NFC Transmission Module Antenna and RF Design Guide

Table 175. Abbreviations

Acronym Description

ADC Analog-to-Digital Converter

ASK Amplitude Shift keying

BPSK Binary Phase Shift Keying

CRC Cyclic Redundancy Check

CW Continuous Wave

DAC Digital-to-Analog Converter

EOF End of frame

HBM Human Body Model

I2C Inter-integrated Circuit

LSB Least Significant Bit

MISO Master In Slave Out

MM Machine Model

MOSI Master Out Slave In

MSB Most Significant Bit

NSS Not Slave Select

PCB Printed-Circuit Board

PLL Phase-Locked Loop

PRBS Pseudo-Random Bit Sequence

RX Receiver

SOF Start Of Frame

SPI Serial Peripheral Interface

TX Transmitter

UART Universal Asynchronous Receiver Transmitter

Product data sheet

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32. Revision history

Table 176. Revision history

Document ID Release date Data sheet status Change notice Supersedes

PN512 v.4.2 20120828 Product data sheet - PN512 v.4.1

Modifications: •Table 122 “AutoTestReg register (address 36h); reset value: 40h, 01000000b”: description of

bits 4 and 5 corrected

PN512 v.4.1 20120821 Product data sheet - PN512 v.4.0

Modifications: •Table 123 “Description of bits”: description of bits 4 and 5 corrected

PN512 v.4.0 20120712 Product data sheet - PN512 v.3.9

Modifications: •Section 33.4 “Licenses”: updated

PN512 v.3.9 20120201 Product data sheet - PN512 v.3.8

Modifications: •Adding information on the different version in General description.

•Adding Section 21 “Errata sheet” on page 106 for explanation of differences between 1.0 and

2.0.

•Adding ordering information for version 1.0 and industrial version in Table 2 “Ordering

information” on page 5

•Adding the limitations and characteristics for the industrial version, see Table 1 “Quick

reference data” on page 4, Table 165 “Limiting values” on page 108, Table 1 “Quick reference

data” on page 4

•Referring to the Section 21 “Errata sheet” on page 106 within the following sections: Section

9.2.2.4 “RxModeReg” on page 36, Section 9.2.2.10 “DemodReg” on page 42, Section 9.2.2.15

“TypeBReg” on page 47, Section 9.2.3.10 “TMode Register, TPrescaler Register” on page 54,

Section 9.2.4.7 “AutoTestReg” on page 61, Section 9.2.4.8 “VersionReg” on page 61, Section

9.1.1 “Register bit behavior” on page 20, Section 15 “Timer unit” on page 93, Section 20

“Testsignals” on page 104;

•Update of command ‘Mem’ to ‘Configure’ and ‘RFU’ to ‘Autocoll’ in Table 157 “Command

overview” on page 98.

•Change of ‘Mem’ to ‘Configure’ in ‘Mem’ in Section 19.3.1.2 “Config command” on page 98

•Adding Autocoll in Section 19.3.1.9 “AutoColl” on page 100

PN512 v.3.8 20111025 Product data sheet - PN512 v.3.7

Modifications: •Table 168 “Characteristics”: unit of Pxtal corrected

111310 June 2005 Objective data sheet -

Modifications: •Initial version

Product data sheet

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Transmission module

33. Legal information

33.1 Data sheet status

[1] Please consult the most recently issued document before initiating or completing a design.

[2] The term ‘short data sheet’ is explained in section “Definitions”.

[3] The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status

information is available on the Internet at URL http://www.nxp.com.

33.2 Definitions

Draft — The document is a draft version only. The content is still under

internal review and subject to formal approval, which may result in

modifications or additions. NXP Semiconductors does not give any

representations or warranties as to the accuracy or completeness of

information included herein and shall have no liability for the consequences of

use of such information.

Short data sheet — A short data sheet is an extract from a full data sheet

with the same product type number(s) and title. A short data sheet is intended

for quick reference only and should not be relied upon to contain detailed and

full information. For detailed and full information see the relevant full data

sheet, which is available on request via the local NXP Semiconductors sales

office. In case of any inconsistency or conflict with the short data sheet, the

full data sheet shall prevail.

Product specification — The information and data provided in a Product

data sheet shall define the specification of the product as agreed between

NXP Semiconductors and its customer, unless NXP Semiconductors and

customer have explicitly agreed otherwise in writing. In no event however,

shall an agreement be valid in which the NXP Semiconductors product is

deemed to offer functions and qualities beyond those described in the

Product data sheet.

33.3 Disclaimers

Limited warranty and liability — Information in this document is believed to

be accurate and reliable. However, NXP Semiconductors does not give any

representations or warranties, expressed or implied, as to the accuracy or

completeness of such information and shall have no liability for the

consequences of use of such information. NXP Semiconductors takes no

responsibility for the content in this document if provided by an information

source outside of NXP Semiconductors.

In no event shall NXP Semiconductors be liable for any indirect, incidental,

punitive, special or consequential damages (including - without limitation - lost

profits, lost savings, business interruption, costs related to the removal or

replacement of any products or rework charges) whether or not such

damages are based on tort (including negligence), warranty, breach of

contract or any other legal theory.

Notwithstanding any damages that customer might incur for any reason

whatsoever, NXP Semiconductors’ aggregate and cumulative liability towards

customer for the products described herein shall be limited in accordance

with the Terms and conditions of commercial sale of NXP Semiconductors.

Right to make changes — NXP Semiconductors reserves the right to make

changes to information published in this document, including without

limitation specifications and product descriptions, at any time and without

notice. This document supersedes and replaces all information supplied prior

to the publication hereof.

Suitability for use — NXP Semiconductors products are not designed,

authorized or warranted to be suitable for use in life support, life-critical or

safety-critical systems or equipment, nor in applications where failure or

malfunction of an NXP Semiconductors product can reasonably be expected

to result in personal injury, death or severe property or environmental

damage. NXP Semiconductors and its suppliers accept no liability for

inclusion and/or use of NXP Semiconductors products in such equipment or

applications and therefore such inclusion and/or use is at the customer’s own

risk.

Applications — Applications that are described herein for any of these

products are for illustrative purposes only. NXP Semiconductors makes no

representation or warranty that such applications will be suitable for the

specified use without further testing or modification.

Customers are responsible for the design and operation of their applications

and products using NXP Semiconductors products, and NXP Semiconductors

accepts no liability for any assistance with applications or customer product

design. It is customer’s sole responsibility to determine whether the NXP

Semiconductors product is suitable and fit for the customer’s applications and

products planned, as well as for the planned application and use of

customer’s third party customer(s). Customers should provide appropriate

design and operating safeguards to minimize the risks associated with their

applications and products.

NXP Semiconductors does not accept any liability related to any default,

damage, costs or problem which is based on any weakness or default in the

customer’s applications or products, or the application or use by customer’s

third party customer(s). Customer is responsible for doing all necessary

testing for the customer’s applications and products using NXP

Semiconductors products in order to avoid a default of the applications and

the products or of the application or use by customer’s third party

customer(s). NXP does not accept any liability in this respect.

Limiting values — Stress above one or more limiting values (as defined in

the Absolute Maximum Ratings System of IEC 60134) will cause permanent

damage to the device. Limiting values are stress ratings only and (proper)

operation of the device at these or any other conditions above those given in

the Recommended operating conditions section (if present) or the

Characteristics sections of this document is not warranted. Constant or

repeated exposure to limiting values will permanently and irreversibly affect

the quality and reliability of the device.

Terms and conditions of commercial sale — NXP Semiconductors

products are sold subject to the general terms and conditions of commercial

sale, as published at http://www.nxp.com/profile/terms, unless otherwise

agreed in a valid written individual agreement. In case an individual

agreement is concluded only the terms and conditions of the respective

agreement shall apply. NXP Semiconductors hereby expressly objects to

applying the customer’s general terms and conditions with regard to the

purchase of NXP Semiconductors products by customer.

No offer to sell or license — Nothing in this document may be interpreted or

construed as an offer to sell products that is open for acceptance or the grant,

conveyance or implication of any license under any copyrights, patents or

other industrial or intellectual property rights.

Document status[1][2] Product status[3] Definition

Objective [short] data sheet Development This document contains data from the objective specification for product development.

Preliminary [short] data sheet Qualification This document contains data from the preliminary specification.

Product [short] data sheet Production This document contains the product specification.

Product data sheet

COMPANY PUBLIC Rev. 4.2 — 28 August 2012

111342 125 of 132

NXP Semiconductors PN512

Transmission module

Export control — This document as well as the item(s) described herein

may be subject to export control regulations. Export might require a prior

authorization from competent authorities.

Quick reference data — The Quick reference data is an extract of the

product data given in the Limiting values and Characteristics sections of this

document, and as such is not complete, exhaustive or legally binding.

Non-automotive qualified products — Unless this data sheet expressly

states that this specific NXP Semiconductors product is automotive qualified,

the product is not suitable for automotive use. It is neither qualified nor tested

in accordance with automotive testing or application requirements. NXP

Semiconductors accepts no liability for inclusion and/or use of

non-automotive qualified products in automotive equipment or applications.

In the event that customer uses the product for design-in and use in

automotive applications to automotive specifications and standards, customer

(a) shall use the product without NXP Semiconductors’ warranty of the

product for such automotive applications, use and specifications, and (b)

whenever customer uses the product for automotive applications beyond

NXP Semiconductors’ specifications such use shall be solely at customer’s

own risk, and (c) customer fully indemnifies NXP Semiconductors for any

liability, damages or failed product claims resulting from customer design and

use of the product for automotive applications beyond NXP Semiconductors’

standard warranty and NXP Semiconductors’ product specifications.

33.4 Licenses

33.5 Trademarks

Notice: All referenced brands, product names, service names and trademarks

are the property of their respective owners.

I2C-bus — logo is a trademark of NXP B.V.

MIFARE — is a trademark of NXP B.V.

34. Contact information

For more information, please visit: http://www.nxp.com

For sales office addresses, please send an email to: salesaddresses@nxp.com

Purchase of NXP ICs with ISO/IEC 14443 type B functionality

This NXP Semiconductors IC is ISO/IEC 14443 Type B

software enabled and is licensed under Innovatron’s

Contactless Card patents license for ISO/IEC 14443 B.

The license includes the right to use the IC in systems

and/or end-user equipment.

RATP/Innovatron

Technology

Purchase of NXP ICs with NFC technology

Purchase of an NXP Semiconductors IC that complies with one of the Near

Field Communication (NFC) standards ISO/IEC 18092 and ISO/IEC 21481

does not convey an implied license under any patent right infringed by

implementation of any of those standards.

Product data sheet

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NXP Semiconductors PN512

Transmission module

35. Tables

Table 1. Quick reference data . . . . . . . . . . . . . . . . . . . . .4

Table 2. Ordering information . . . . . . . . . . . . . . . . . . . . .5

Table 3. Pin description HVQFN32 . . . . . . . . . . . . . . . . .9

Table 4. Pin description HVQFN40 . . . . . . . . . . . . . . . .10

Table 5. Communication overview for

ISO/IEC 14443 A/MIFARE reader/writer . . . . . 11

Table 6. Communication overview for FeliCa

reader/writer . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Table 7. FeliCa framing and coding . . . . . . . . . . . . . . . .13

Table 8. Start value for the CRC Polynomial: (00h),

(00h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Table 9. Communication overview for Active

communication mode . . . . . . . . . . . . . . . . . . . .15

Table 10. Communication overview for Passive

communication mode . . . . . . . . . . . . . . . . . . . .16

Table 11. Framing and coding overview. . . . . . . . . . . . . .17

Table 12. MIFARE Card operation mode . . . . . . . . . . . . .17

Table 13. FeliCa Card operation mode . . . . . . . . . . . . . .18

Table 14. PN512 registers overview . . . . . . . . . . . . . . . .18

Table 15. Behavior of register bits and its designation. . .20

Table 16. PageReg register (address 00h); reset value:

00h, 0000000b . . . . . . . . . . . . . . . . . . . . . . . . .21

Table 17. Description of PageReg bits . . . . . . . . . . . . . . .21

Table 18. CommandReg register (address 01h); reset

value: 20h, 00100000b . . . . . . . . . . . . . . . . . . .21

Table 19. Description of CommandReg bits. . . . . . . . . . .21

Table 20. CommIEnReg register (address 02h); reset

value: 80h, 10000000b . . . . . . . . . . . . . . . . . . .22

Table 21. Description of CommIEnReg bits . . . . . . . . . . .22

Table 22. DivIEnReg register (address 03h); reset

value: 00h, 00000000b . . . . . . . . . . . . . . . . . . .23

Table 23. Description of DivIEnReg bits. . . . . . . . . . . . . .23

Table 24. CommIRqReg register (address 04h); reset

value: 14h, 00010100b . . . . . . . . . . . . . . . . . . .24

Table 25. Description of CommIRqReg bits . . . . . . . . . . .24

Table 26. DivIRqReg register (address 05h); reset

value: XXh, 000X00XXb. . . . . . . . . . . . . . . . . .25

Table 27. Description of DivIRqReg bits . . . . . . . . . . . . .25

Table 28. ErrorReg register (address 06h); reset value:

00h, 00000000b . . . . . . . . . . . . . . . . . . . . . . . .26

Table 29. Description of ErrorReg bits . . . . . . . . . . . . . . .26

Table 30. Status1Reg register (address 07h); reset

value: XXh, X100X01Xb. . . . . . . . . . . . . . . . . .27

Table 31. Description of Status1Reg bits . . . . . . . . . . . . .27

Table 32. Status2Reg register (address 08h); reset

value: 00h, 00000000b . . . . . . . . . . . . . . . . . . .28

Table 33. Description of Status2Reg bits . . . . . . . . . . . . .28

Table 34. FIFODataReg register (address 09h); reset

value: XXh, XXXXXXXXb. . . . . . . . . . . . . . . . .29

Table 35. Description of FIFODataReg bits . . . . . . . . . . .29

Table 36. FIFOLevelReg register (address 0Ah); reset

value: 00h, 00000000b . . . . . . . . . . . . . . . . . . .29

Table 37. Description of FIFOLevelReg bits. . . . . . . . . . .29

Table 38. WaterLevelReg register (address 0Bh); reset

value: 08h, 00001000b . . . . . . . . . . . . . . . . . . .30

Table 39. Description of WaterLevelReg bits . . . . . . . . . .30

Table 40. ControlReg register (address 0Ch); reset

value: 00h, 00000000b . . . . . . . . . . . . . . . . . . 30

Table 41. Description of ControlReg bits . . . . . . . . . . . . 30

Table 42. BitFramingReg register (address 0Dh); reset

value: 00h, 00000000b . . . . . . . . . . . . . . . . . . 31

Table 43. Description of BitFramingReg bits . . . . . . . . . . 31

Table 44. CollReg register (address 0Eh); reset value:

XXh, 101XXXXXb . . . . . . . . . . . . . . . . . . . . . . 32

Table 45. Description of CollReg bits. . . . . . . . . . . . . . . . 32

Table 46. PageReg register (address 10h); reset value:

00h, 00000000b. . . . . . . . . . . . . . . . . . . . . . . . 33

Table 47. Description of PageReg bits . . . . . . . . . . . . . . 33

Table 48. ModeReg register (address 11h); reset value:

3Bh, 00111011b . . . . . . . . . . . . . . . . . . . . . . . . 34

Table 49. Description of ModeReg bits . . . . . . . . . . . . . . 34

Table 50. TxModeReg register (address 12h); reset

value: 00h, 00000000b . . . . . . . . . . . . . . . . . . 35

Table 51. Description of TxModeReg bits . . . . . . . . . . . . 35

Table 52. RxModeReg register (address 13h); reset

value: 00h, 00000000b . . . . . . . . . . . . . . . . . . 36

Table 53. Description of RxModeReg bits . . . . . . . . . . . . 36

Table 54. TxControlReg register (address 14h); reset

value: 80h, 10000000b . . . . . . . . . . . . . . . . . . 37

Table 55. Description of TxControlReg bits . . . . . . . . . . . 37

Table 56. TxAutoReg register (address 15h); reset

value: 00h, 00000000b . . . . . . . . . . . . . . . . . . 38

Table 57. Description of TxAutoReg bits . . . . . . . . . . . . . 38

Table 58. TxSelReg register (address 16h); reset value:

10h, 00010000b. . . . . . . . . . . . . . . . . . . . . . . . 39

Table 59. Description of TxSelReg bits . . . . . . . . . . . . . . 39

Table 60. RxSelReg register (address 17h); reset value:

84h, 10000100b. . . . . . . . . . . . . . . . . . . . . . . . 41

Table 61. Description of RxSelReg bits . . . . . . . . . . . . . . 41

Table 62. RxThresholdReg register (address 18h);

reset value: 84h, 10000100b . . . . . . . . . . . . . . 41

Table 63. Description of RxThresholdReg bits . . . . . . . . 41

Table 64. DemodReg register (address 19h); reset

value: 4Dh, 01001101b . . . . . . . . . . . . . . . . . . 42

Table 65. Description of DemodReg bits . . . . . . . . . . . . . 42

Table 66. FelNFC1Reg register (address 1Ah); reset

value: 00h, 00000000b . . . . . . . . . . . . . . . . . . 43

Table 67. Description of FelNFC1Reg bits . . . . . . . . . . . 43

Table 68. FelNFC2Reg register (address1Bh); reset

value: 00h, 00000000b . . . . . . . . . . . . . . . . . . 44

Table 69. Description of FelNFC2Reg bits . . . . . . . . . . . 44

Table 70. MifNFCReg register (address 1Ch); reset

value: 62h, 01100010b. . . . . . . . . . . . . . . . . . . 45

Table 71. Description of MifNFCReg bits. . . . . . . . . . . . . 45

Table 72. ManualRCVReg register (address 1Dh);

reset value: 00h, 00000000b . . . . . . . . . . . . . . 46

Table 73. Description of ManualRCVReg bits . . . . . . . . . 46

Table 74. TypeBReg register (address 1Eh); reset

value: 00h, 00000000b . . . . . . . . . . . . . . . . . . 47

Table 75. Description of TypeBReg bits. . . . . . . . . . . . . . 47

Table 76. SerialSpeedReg register (address 1Fh);

reset value: EBh, 11101011b . . . . . . . . . . . . . . 48

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NXP Semiconductors PN512

Transmission module

Table 77. Description of SerialSpeedReg bits . . . . . . . . .48

Table 78. PageReg register (address 20h); reset value:

00h, 00000000b . . . . . . . . . . . . . . . . . . . . . . . .49

Table 79. Description of PageReg bits . . . . . . . . . . . . . . .49

Table 80. CRCResultReg register (address 21h); reset

value: FFh, 11111111b. . . . . . . . . . . . . . . . . . . . 49

Table 81. Description of CRCResultReg bits . . . . . . . . . .49

Table 82. CRCResultReg register (address 22h); reset

value: FFh, 11111111b. . . . . . . . . . . . . . . . . . . . 49

Table 83. Description of CRCResultReg bits . . . . . . . . . .49

Table 84. GsNOffReg register (address 23h); reset

value: 88h, 10001000b . . . . . . . . . . . . . . . . . . .50

Table 85. Description of GsNOffReg bits . . . . . . . . . . . . .50

Table 86. ModWidthReg register (address 24h); reset

value: 26h, 00100110b . . . . . . . . . . . . . . . . . . .51

Table 87. Description of ModWidthReg bits . . . . . . . . . . .51

Table 88. TxBitPhaseReg register (address 25h); reset

value: 87h, 10000111b . . . . . . . . . . . . . . . . . . .51

Table 89. Description of TxBitPhaseReg bits . . . . . . . . . .51

Table 90. RFCfgReg register (address 26h); reset

value: 48h, 01001000b . . . . . . . . . . . . . . . . . . .52

Table 91. Description of RFCfgReg bits . . . . . . . . . . . . .52

Table 92. GsNOnReg register (address 27h); reset

value: 88h, 10001000b . . . . . . . . . . . . . . . . . . .53

Table 93. Description of GsNOnReg bits . . . . . . . . . . . . .53

Table 94. CWGsPReg register (address 28h); reset

value: 20h, 00100000b . . . . . . . . . . . . . . . . . . .53

Table 95. Description of CWGsPReg bits. . . . . . . . . . . . .53

Table 96. ModGsPReg register (address 29h); reset

value: 20h, 00100000b . . . . . . . . . . . . . . . . . . .54

Table 97. Description of ModGsPReg bits . . . . . . . . . . . .54

Table 98. TModeReg register (address 2Ah); reset

value: 00h, 00000000b . . . . . . . . . . . . . . . . . . .54

Table 99. Description of TModeReg bits . . . . . . . . . . . . .54

Table 100. TPrescalerReg register (address 2Bh); reset

value: 00h, 00000000b . . . . . . . . . . . . . . . . . . .55

Table 101. Description of TPrescalerReg bits . . . . . . . . . .55

Table 102. TReloadReg (Higher bits) register (address

2Ch); reset value: 00h, 00000000b . . . . . . . . .56

Table 103. Description of the higher TReloadReg bits . . .56

Table 104. TReloadReg (Lower bits) register (address

2Dh); reset value: 00h, 00000000b . . . . . . . . .56

Table 105. Description of lower TReloadReg bits . . . . . . .56

Table 106. TCounterValReg (Higher bits) register

(address 2Eh); reset value: XXh,

XXXXXXXXb . . . . . . . . . . . . . . . . . . . . . . . . . .57

Table 107. Description of the higher

TCounterValReg bits. . . . . . . . . . . . . . . . . . . . .57

Table 108. TCounterValReg (Lower bits) register

(address 2Fh); reset value: XXh,

XXXXXXXXb . . . . . . . . . . . . . . . . . . . . . . . . . .57

Table 109. Description of lower TCounterValReg bits . . . .57

Table 110. PageReg register (address 30h); reset value:

00h, 00000000b . . . . . . . . . . . . . . . . . . . . . . . .57

Table 111. Description of PageReg bits. . . . . . . . . . . . . . .58

Table 112. TestSel1Reg register (address 31h); reset

value: 00h, 00000000b . . . . . . . . . . . . . . . . . . .59

Table 113. Description of TestSel1Reg bits . . . . . . . . . . . .59

Table 114. TestSel2Reg register (address 32h); reset

value: 00h, 00000000b . . . . . . . . . . . . . . . . . . 59

Table 115. Description of TestSel2Reg bits. . . . . . . . . . . . 59

Table 116. TestPinEnReg register (address 33h); reset

value: 80h, 10000000b . . . . . . . . . . . . . . . . . . 60

Table 117. Description of TestPinEnReg bits . . . . . . . . . . 60

Table 118. TestPinValueReg register (address 34h);

reset value: 00h, 00000000b . . . . . . . . . . . . . . 60

Table 119. Description of TestPinValueReg bits . . . . . . . . 60

Table 120. TestBusReg register (address 35h); reset

value: XXh, XXXXXXXXb . . . . . . . . . . . . . . . . 61

Table 121. Description of TestBusReg bits . . . . . . . . . . . . 61

Table 122. AutoTestReg register (address 36h); reset

value: 40h, 01000000b . . . . . . . . . . . . . . . . . . 61

Table 123. Description of bits . . . . . . . . . . . . . . . . . . . . . . 61

Table 124. VersionReg register (address 37h); reset

value: XXh, XXXXXXXXb . . . . . . . . . . . . . . . . 62

Table 125. Description of VersionReg bits . . . . . . . . . . . . 62

Table 126. AnalogTestReg register (address 38h); reset

value: 00h, 00000000b . . . . . . . . . . . . . . . . . . 63

Table 127. Description of AnalogTestReg bits . . . . . . . . . 63

Table 128. TestDAC1Reg register (address 39h); reset

value: XXh, 00XXXXXXb . . . . . . . . . . . . . . . . . 64

Table 129. Description of TestDAC1Reg bits . . . . . . . . . . 64

Table 130. TestDAC2Reg register (address 3Ah); reset

value: XXh, 00XXXXXXb . . . . . . . . . . . . . . . . . 64

Table 131. Description ofTestDAC2Reg bits. . . . . . . . . . . 64

Table 132. TestADCReg register (address 3Bh); reset

value: XXh, XXXXXXXXb . . . . . . . . . . . . . . . . 64

Table 133. Description of TestADCReg bits . . . . . . . . . . . 64

Table 134. RFTReg register (address 3Ch); reset value:

FFh, 11111111b . . . . . . . . . . . . . . . . . . . . . . . . 65

Table 135. Description of RFTReg bits . . . . . . . . . . . . . . . 65

Table 136. RFTReg register (address 3Dh, 3Fh); reset value:

00h, 00000000b. . . . . . . . . . . . . . . . . . . . . . . . 65

Table 137. Description of RFTReg bits . . . . . . . . . . . . . . . 65

Table 138. RFTReg register (address 3Eh); reset value:

03h, 00000011b . . . . . . . . . . . . . . . . . . . . . . . . 65

Table 139. Description of RFTReg bits . . . . . . . . . . . . . . . 65

Table 140. Connection protocol for detecting different

interface types . . . . . . . . . . . . . . . . . . . . . . . . . 66

Table 141. Connection scheme for detecting the

different interface types . . . . . . . . . . . . . . . . . . 66

Table 142. MOSI and MISO byte order . . . . . . . . . . . . . . 67

Table 143. MOSI and MISO byte order . . . . . . . . . . . . . . 68

Table 144. Address byte 0 register; address MOSI . . . . . 68

Table 145. BR_T0 and BR_T1 settings . . . . . . . . . . . . . . 69

Table 146. Selectable UART transfer speeds . . . . . . . . . 69

Table 147. UART framing . . . . . . . . . . . . . . . . . . . . . . . . . 69

Table 148. Read data byte order . . . . . . . . . . . . . . . . . . . 70

Table 149. Write data byte order . . . . . . . . . . . . . . . . . . . 70

Table 150. Address byte 0 register; address MOSI . . . . . 72

Table 151. Supported interface types . . . . . . . . . . . . . . . . 79

Table 152. Register and bit settings controlling the

signal on pin TX1 . . . . . . . . . . . . . . . . . . . . . . 81

Table 153. Register and bit settings controlling the

signal on pin TX2 . . . . . . . . . . . . . . . . . . . . . . 82

Table 154. Setting of the bits RFlevel in register

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NXP Semiconductors PN512

Transmission module

RFCfgReg (RFLevel amplifier deactivated) . . .83

Table 155. CRC coprocessor parameters . . . . . . . . . . . .90

Table 156. Interrupt sources . . . . . . . . . . . . . . . . . . . . . . .92

Table 157. Command overview . . . . . . . . . . . . . . . . . . . .98

Table 158. Testsignal routing (TestSel2Reg = 07h) . . . . .104

Table 159. Description of Testsignals . . . . . . . . . . . . . . .104

Table 160. Testsignal routing (TestSel2Reg = 0Dh) . . . .105

Table 161. Description of Testsignals . . . . . . . . . . . . . . .105

Table 162. Testsignal routing (TestSel2Reg = 19h) . . . . .105

Table 163. Description of Testsignals . . . . . . . . . . . . . . .105

Table 164. Testsignals description. . . . . . . . . . . . . . . . . .105

Table 165. Limiting values . . . . . . . . . . . . . . . . . . . . . . .108

Table 166. Operating conditions . . . . . . . . . . . . . . . . . . .108

Table 167. Thermal characteristics . . . . . . . . . . . . . . . . .109

Table 168. Characteristics . . . . . . . . . . . . . . . . . . . . . . .109

Table 169. SPI timing characteristics . . . . . . . . . . . . . . . 113

Table 170. I2C-bus timing in Fast mode . . . . . . . . . . . . .114

Table 171. AC symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Table 172. Timing specification for separated

Read/Write strobe. . . . . . . . . . . . . . . . . . . . . . 116

Table 173. Timing specification for common

Read/Write strobe. . . . . . . . . . . . . . . . . . . . . . 117

Table 174. Package information . . . . . . . . . . . . . . . . . . .119

Table 175. Abbreviations . . . . . . . . . . . . . . . . . . . . . . . .122

Table 176. Revision history . . . . . . . . . . . . . . . . . . . . . . .123

Product data sheet

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NXP Semiconductors PN512

Transmission module

36. Figures

Fig 1. Simplified block diagram of the PN512 . . . . . . . . .6

Fig 2. Detailed block diagram of the PN512 . . . . . . . . . .7

Fig 3. Pinning configuration HVQFN32 (SOT617-1) . . . .8

Fig 4. Pinning configuration HVQFN40 (SOT618-1) . . . .8

Fig 5. PN512 Read/Write mode. . . . . . . . . . . . . . . . . . . 11

Fig 6. ISO/IEC 14443 A/MIFARE Read/Write mode

communication diagram. . . . . . . . . . . . . . . . . . . .11

Fig 7. Data coding and framing according to

ISO/IEC 14443 A . . . . . . . . . . . . . . . . . . . . . . . . .12

Fig 8. FeliCa reader/writer communication diagram . . .13

Fig 9. NFCIP-1 mode. . . . . . . . . . . . . . . . . . . . . . . . . . .14

Fig 10. Active communication mode . . . . . . . . . . . . . . . .15

Fig 11. Passive communication mode . . . . . . . . . . . . . . .16

Fig 12. SPI connection to host. . . . . . . . . . . . . . . . . . . . .67

Fig 13. UART connection to microcontrollers . . . . . . . . .68

Fig 14. UART read data timing diagram . . . . . . . . . . . . .70

Fig 15. UART write data timing diagram . . . . . . . . . . . . .71

Fig 16. I2C-bus interface . . . . . . . . . . . . . . . . . . . . . . . . .72

Fig 17. Bit transfer on the I2C-bus . . . . . . . . . . . . . . . . . .73

Fig 18. START and STOP conditions . . . . . . . . . . . . . . .73

Fig 19. Acknowledge on the I2C-bus . . . . . . . . . . . . . . . .74

Fig 20. Data transfer on the I2C-bus . . . . . . . . . . . . . . . .74

Fig 21. First byte following the START procedure . . . . . .75

Fig 22. Register read and write access . . . . . . . . . . . . . .76

Fig 23. I2C-bus HS mode protocol switch . . . . . . . . . . . .77

Fig 24. I2C-bus HS mode protocol frame. . . . . . . . . . . . .78

Fig 25. Connection to host controller with separated

Read/Write strobes . . . . . . . . . . . . . . . . . . . . . . .80

Fig 26. Connection to host controller with common

Read/Write strobes . . . . . . . . . . . . . . . . . . . . . . .80

Fig 27. Data mode detector . . . . . . . . . . . . . . . . . . . . . . .84

Fig 28. Serial data switch for TX1 and TX2 . . . . . . . . . . .85

Fig 29. Communication flows using the S2C interface. . .86

Fig 30. Signal shape for SIGOUT in FeliCa card SAM

mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87

Fig 31. Signal shape for SIGIN in SAM mode . . . . . . . . .87

Fig 32. Signal shape for SIGOUT in MIFARE Card

SAM mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88

Fig 33. Signal shape for SIGIN in MIFARE Card SAM

mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88

Fig 34. Quartz crystal connection . . . . . . . . . . . . . . . . . .96

Fig 35. Oscillator start-up time. . . . . . . . . . . . . . . . . . . . .97

Fig 36. Autocoll Command . . . . . . . . . . . . . . . . . . . . . .101

Fig 37. Typical circuit diagram . . . . . . . . . . . . . . . . . . . .107

Fig 38. Pin RX input voltage range . . . . . . . . . . . . . . . .113

Fig 39. Timing diagram for SPI . . . . . . . . . . . . . . . . . . .115

Fig 40. Timing for Fast and Standard mode devices

on the I2C-bus . . . . . . . . . . . . . . . . . . . . . . . . . .115

Fig 41. Timing diagram for separated Read/Write

strobe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117

Fig 42. Timing diagram for common Read/Write strobe 118

Fig 43. Package outline package version (HVQFN32) .120

Fig 44. Package outline package version (HVQFN40) .121

Product data sheet

COMPANY PUBLIC Rev. 4.2 — 28 August 2012

111342 130 of 132

continued >>

NXP Semiconductors PN512

Transmission module

37. Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 Different available versions. . . . . . . . . . . . . . . . 1

2 General description . . . . . . . . . . . . . . . . . . . . . . 1

3 Features and benefits . . . . . . . . . . . . . . . . . . . . 3

4 Quick reference data . . . . . . . . . . . . . . . . . . . . . 4

5 Ordering information. . . . . . . . . . . . . . . . . . . . . 5

6 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 6

7 Pinning information. . . . . . . . . . . . . . . . . . . . . . 8

7.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

7.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 9

8 Functional description . . . . . . . . . . . . . . . . . . 11

8.1 ISO/IEC 14443 A/MIFARE functionality . . . . . 11

8.2 ISO/IEC 14443 B functionality . . . . . . . . . . . . 12

8.3 FeliCa reader/writer functionality . . . . . . . . . . 13

8.3.1 FeliCa framing and coding . . . . . . . . . . . . . . . 13

8.4 NFCIP-1 mode . . . . . . . . . . . . . . . . . . . . . . . . 14

8.4.1 Active communication mode . . . . . . . . . . . . . 15

8.4.2 Passive communication mode . . . . . . . . . . . . 16

8.4.3 NFCIP-1 framing and coding . . . . . . . . . . . . . 17

8.4.4 NFCIP-1 protocol support. . . . . . . . . . . . . . . . 17

8.4.5 MIFARE Card operation mode . . . . . . . . . . . . 17

8.4.6 FeliCa Card operation mode . . . . . . . . . . . . . 18

9 PN512 register SET . . . . . . . . . . . . . . . . . . . . . 18

9.1 PN512 registers overview. . . . . . . . . . . . . . . . 18

9.1.1 Register bit behavior. . . . . . . . . . . . . . . . . . . . 20

9.2 Register description . . . . . . . . . . . . . . . . . . . . 21

9.2.1 Page 0: Command and status . . . . . . . . . . . . 21

9.2.1.1 PageReg. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

9.2.1.2 CommandReg . . . . . . . . . . . . . . . . . . . . . . . . 21

9.2.1.3 CommIEnReg . . . . . . . . . . . . . . . . . . . . . . . . . 22

9.2.1.4 DivIEnReg . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

9.2.1.5 CommIRqReg. . . . . . . . . . . . . . . . . . . . . . . . . 24

9.2.1.6 DivIRqReg . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

9.2.1.7 ErrorReg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

9.2.1.8 Status1Reg . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

9.2.1.9 Status2Reg . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

9.2.1.10 FIFODataReg . . . . . . . . . . . . . . . . . . . . . . . . . 29

9.2.1.11 FIFOLevelReg . . . . . . . . . . . . . . . . . . . . . . . . 29

9.2.1.12 WaterLevelReg . . . . . . . . . . . . . . . . . . . . . . . . 30

9.2.1.13 ControlReg . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

9.2.1.14 BitFramingReg . . . . . . . . . . . . . . . . . . . . . . . . 31

9.2.1.15 CollReg. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

9.2.2 Page 1: Communication . . . . . . . . . . . . . . . . . 33

9.2.2.1 PageReg. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

9.2.2.2 ModeReg . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

9.2.2.3 TxModeReg . . . . . . . . . . . . . . . . . . . . . . . . . . 35

9.2.2.4 RxModeReg . . . . . . . . . . . . . . . . . . . . . . . . . . 36

9.2.2.5 TxControlReg. . . . . . . . . . . . . . . . . . . . . . . . . 37

9.2.2.6 TxAutoReg . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

9.2.2.7 TxSelReg . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

9.2.2.8 RxSelReg. . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

9.2.2.9 RxThresholdReg . . . . . . . . . . . . . . . . . . . . . . 41

9.2.2.10 DemodReg. . . . . . . . . . . . . . . . . . . . . . . . . . . 42

9.2.2.11 FelNFC1Reg . . . . . . . . . . . . . . . . . . . . . . . . . 43

9.2.2.12 FelNFC2Reg . . . . . . . . . . . . . . . . . . . . . . . . . 44

9.2.2.13 MifNFCReg . . . . . . . . . . . . . . . . . . . . . . . . . . 45

9.2.2.14 ManualRCVReg . . . . . . . . . . . . . . . . . . . . . . . 46

9.2.2.15 TypeBReg . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

9.2.2.16 SerialSpeedReg . . . . . . . . . . . . . . . . . . . . . . . 47

9.2.3 Page 2: Configuration . . . . . . . . . . . . . . . . . . 49

9.2.3.1 PageReg . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

9.2.3.2 CRCResultReg . . . . . . . . . . . . . . . . . . . . . . . 49

9.2.3.3 GsNOffReg . . . . . . . . . . . . . . . . . . . . . . . . . . 50

9.2.3.4 ModWidthReg . . . . . . . . . . . . . . . . . . . . . . . . 51

9.2.3.5 TxBitPhaseReg . . . . . . . . . . . . . . . . . . . . . . . 51

9.2.3.6 RFCfgReg . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

9.2.3.7 GsNOnReg . . . . . . . . . . . . . . . . . . . . . . . . . . 53

9.2.3.8 CWGsPReg . . . . . . . . . . . . . . . . . . . . . . . . . . 53

9.2.3.9 ModGsPReg . . . . . . . . . . . . . . . . . . . . . . . . . 54

9.2.3.10 TMode Register, TPrescaler Register . . . . . . 54

9.2.3.11 TReloadReg. . . . . . . . . . . . . . . . . . . . . . . . . . 56

9.2.3.12 TCounterValReg . . . . . . . . . . . . . . . . . . . . . . 57

9.2.4 Page 3: Test. . . . . . . . . . . . . . . . . . . . . . . . . . 57

9.2.4.1 PageReg . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

9.2.4.2 TestSel1Reg. . . . . . . . . . . . . . . . . . . . . . . . . . 59

9.2.4.3 TestSel2Reg. . . . . . . . . . . . . . . . . . . . . . . . . . 59

9.2.4.4 TestPinEnReg . . . . . . . . . . . . . . . . . . . . . . . . 60

9.2.4.5 TestPinValueReg . . . . . . . . . . . . . . . . . . . . . . 60

9.2.4.6 TestBusReg . . . . . . . . . . . . . . . . . . . . . . . . . . 61

9.2.4.7 AutoTestReg . . . . . . . . . . . . . . . . . . . . . . . . . 61

9.2.4.8 VersionReg . . . . . . . . . . . . . . . . . . . . . . . . . . 61

9.2.4.9 AnalogTestReg. . . . . . . . . . . . . . . . . . . . . . . . 63

9.2.4.10 TestDAC1Reg . . . . . . . . . . . . . . . . . . . . . . . . 64

9.2.4.11 TestDAC2Reg . . . . . . . . . . . . . . . . . . . . . . . . 64

9.2.4.12 TestADCReg . . . . . . . . . . . . . . . . . . . . . . . . . 64

9.2.4.13 RFTReg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

10 Digital interfaces . . . . . . . . . . . . . . . . . . . . . . . 65

10.1 Automatic microcontroller interface detection 65

10.2 Serial Peripheral Interface . . . . . . . . . . . . . . . 67

10.2.1 SPI read data. . . . . . . . . . . . . . . . . . . . . . . . . 67

10.2.2 SPI write data. . . . . . . . . . . . . . . . . . . . . . . . . 67

10.2.3 SPI address byte . . . . . . . . . . . . . . . . . . . . . . 68

10.3 UART interface . . . . . . . . . . . . . . . . . . . . . . . 68

10.3.1 Connection to a host . . . . . . . . . . . . . . . . . . . 68

Product data sheet

COMPANY PUBLIC Rev. 4.2 — 28 August 2012

111342 131 of 132

continued >>

NXP Semiconductors PN512

Transmission module

10.3.2 Selectable UART transfer speeds . . . . . . . . . 68

10.3.3 UART framing. . . . . . . . . . . . . . . . . . . . . . . . . 69

10.4 I2C Bus Interface . . . . . . . . . . . . . . . . . . . . . . 72

10.4.1 Data validity . . . . . . . . . . . . . . . . . . . . . . . . . . 73

10.4.2 START and STOP conditions . . . . . . . . . . . . . 73

10.4.3 Byte format . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

10.4.4 Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . 74

10.4.5 7-Bit addressing . . . . . . . . . . . . . . . . . . . . . . . 75

10.4.6 Register write access . . . . . . . . . . . . . . . . . . . 75

10.4.7 Register read access . . . . . . . . . . . . . . . . . . . 76

10.4.8 High-speed mode . . . . . . . . . . . . . . . . . . . . . . 77

10.4.9 High-speed transfer . . . . . . . . . . . . . . . . . . . . 77

10.4.10 Serial data transfer format in HS mode . . . . . 77

10.4.11 Switching between F/S mode and HS mode . 79

10.4.12 PN512 at lower speed modes . . . . . . . . . . . . 79

11 8-bit parallel interface . . . . . . . . . . . . . . . . . . . 79

11.1 Overview of supported host controller

interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

11.2 Separated Read/Write strobe . . . . . . . . . . . . . 80

11.3 Common Read/Write strobe . . . . . . . . . . . . . . 80

12 Analog interface and contactless UART . . . . 81

12.1 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

12.2 TX driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

12.3 RF level detector . . . . . . . . . . . . . . . . . . . . . . 82

12.4 Data mode detector . . . . . . . . . . . . . . . . . . . . 83

12.5 Serial data switch . . . . . . . . . . . . . . . . . . . . . . 85

12.6 S2C interface support . . . . . . . . . . . . . . . . . . . 85

12.6.1 Signal shape for Felica S2C interface support 87

12.6.2 Waveform shape for ISO/IEC 14443A and

MIFARE S2C support . . . . . . . . . . . . . . . . . . . 88

12.7 Hardware support for FeliCa and NFC polling 89

12.7.1 Polling sequence functionality for initiator. . . . 89

12.7.2 Polling sequence functionality for target. . . . . 89

12.7.3 Additional hardware support for FeliCa

and NFC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

12.7.4 CRC coprocessor . . . . . . . . . . . . . . . . . . . . . . 90

13 FIFO buffer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

13.1 Accessing the FIFO buffer . . . . . . . . . . . . . . . 91

13.2 Controlling the FIFO buffer . . . . . . . . . . . . . . . 91

13.3 FIFO buffer status information . . . . . . . . . . . . 91

14 Interrupt request system. . . . . . . . . . . . . . . . . 92

14.1 Interrupt sources overview . . . . . . . . . . . . . . . 92

15 Timer unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

16 Power reduction modes . . . . . . . . . . . . . . . . . 95

16.1 Hard power-down . . . . . . . . . . . . . . . . . . . . . . 95

16.2 Soft power-down mode. . . . . . . . . . . . . . . . . . 95

16.3 Transmitter power-down mode. . . . . . . . . . . . 95

17 Oscillator circuitry. . . . . . . . . . . . . . . . . . . . . . 96

18 Reset and oscillator start-up time . . . . . . . . . 96

18.1 Reset timing requirements. . . . . . . . . . . . . . . 96

18.2 Oscillator start-up time. . . . . . . . . . . . . . . . . . 96

19 PN512 command set. . . . . . . . . . . . . . . . . . . . 97

19.1 General description . . . . . . . . . . . . . . . . . . . . 97

19.2 General behavior . . . . . . . . . . . . . . . . . . . . . . 97

19.3 PN512 command overview . . . . . . . . . . . . . . 98

19.3.1 PN512 command descriptions. . . . . . . . . . . . 98

19.3.1.1 Idle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

19.3.1.2 Config command . . . . . . . . . . . . . . . . . . . . . . 98

19.3.1.3 Generate RandomID . . . . . . . . . . . . . . . . . . . 99

19.3.1.4 CalcCRC . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

19.3.1.5 Transmit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

19.3.1.6 NoCmdChange . . . . . . . . . . . . . . . . . . . . . . . 99

19.3.1.7 Receive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

19.3.1.8 Transceive . . . . . . . . . . . . . . . . . . . . . . . . . . 100

19.3.1.9 AutoColl . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

19.3.1.10 MFAuthent . . . . . . . . . . . . . . . . . . . . . . . . . . 102

19.3.1.11 SoftReset . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

20 Testsignals. . . . . . . . . . . . . . . . . . . . . . . . . . . 104

20.1 Selftest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

20.2 Testbus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

20.3 Testsignals at pin AUX . . . . . . . . . . . . . . . . . 105

20.4 PRBS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

21 Errata sheet . . . . . . . . . . . . . . . . . . . . . . . . . . 106

22 Application design-in information. . . . . . . . 107

23 Limiting values . . . . . . . . . . . . . . . . . . . . . . . 108

24 Recommended operating conditions . . . . . 108

25 Thermal characteristics . . . . . . . . . . . . . . . . 109

26 Characteristics . . . . . . . . . . . . . . . . . . . . . . . 109

26.1 Timing characteristics . . . . . . . . . . . . . . . . . . 113

26.2 8-bit parallel interface timing . . . . . . . . . . . . . 116

26.2.1 AC symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 116

26.2.2 AC operating specification . . . . . . . . . . . . . . . 116

26.2.2.1 Bus timing for separated Read/Write strobe . 116

26.2.2.2 Bus timing for common Read/Write strobe . . 117

27 Package information. . . . . . . . . . . . . . . . . . . . 119

28 Package outline. . . . . . . . . . . . . . . . . . . . . . . 120

29 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . 122

30 Glossary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

31 References. . . . . . . . . . . . . . . . . . . . . . . . . . . 122

32 Revision history . . . . . . . . . . . . . . . . . . . . . . 123

33 Legal information . . . . . . . . . . . . . . . . . . . . . 124

33.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . 124

33.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . 124

33.3 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . 124

33.4 Licenses. . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

33.5 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . 125

NXP Semiconductors PN512

Transmission module

For more information, please visit: http://www.nxp.com

For sales office addresses, please send an email to: salesaddresses@nxp.com

Date of release: 28 August 2012

111342

Please be aware that important notices concerning this document and the product(s)

described herein, have been included in section ‘Legal information’.

34 Contact information. . . . . . . . . . . . . . . . . . . . 125

35 Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

36 Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

37 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

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