SCM SCL3711 User manual

SCM Microsystems
Reference Manual – version 1.3
SCL3711
Multiprotocol contactless mobile reader

Reference manual
SCL3711 Multiprotocol Contactless mobile
Reader
© SCM Microsystems
Oskar-Messter-Strasse, 13
85737 Ismaning
Germany
Phone [phone] • Fax [phone]

Document history
Date Version Description of change
16/02/2009 1.0 Initial version
06/03/2009 1.1 Review and update by product management
18/03/2009 1.2 Final review for release
01/04/2009 1.3 Update – added examples of APDU sequences for a few
commands + corrected a few typos
Contact information
http://www.scmmicro.com/products-services/smart-card-readers-terminals/contactless-dual-
interface-readers.html
For sales information, please email [e-mail]

Table of Contents
1. Legal information ............................................................................................................... 7
1.1. Disclaimers.....................................................................................................................7
1.2. Licenses ......................................................................................................................... 7
1.3. Trademarks .................................................................................................................... 7
2. Introduction to the manual ................................................................................................. 8
2.1. Objective of the manual ................................................................................................. 8
2.2. Target audience ............................................................................................................. 8
2.3. Product version corresponding to the manual ...............................................................8
2.4. Definition of various terms and acronyms ......................................................................9
2.5. References ................................................................................................................... 10
2.6. Conventions ................................................................................................................. 11
3. General information about SCL3711 ............................................................................... 12
3.1. SCL3711 key benefits .................................................................................................. 12
3.2. SCL3711 key features.................................................................................................. 12
3.3. SCL3711 ordering information ..................................................................................... 13
3.4. SCL3711 customization options................................................................................... 13
3.5. Contactless communication principles and SCL3711 usage recommendations ......... 14
3.5.1. Power supply......................................................................................................... 14
3.5.2. Data exchange...................................................................................................... 14
3.5.3. Recommendations ................................................................................................ 15
3.6. Applications .................................................................................................................. 16
3.6.1. General ................................................................................................................. 16
3.6.2. Applications provided by SCM Microsystems....................................................... 16
4. SCL3711 characteristics .................................................................................................. 17
4.1. SCL3711 high level architecture .................................................................................. 17
4.1.1. Block diagram ....................................................................................................... 17
4.1.2. Software architecture ............................................................................................ 17
4.2. Quick reference data .................................................................................................... 18
4.2.1. SCL3711 dimensions............................................................................................ 18
4.2.2. LED behavior ........................................................................................................ 18
4.2.3. Other data ............................................................................................................. 18
5. Software modules ............................................................................................................ 20
5.1. Installation .................................................................................................................... 20
5.2. Utilities .......................................................................................................................... 21
5.3. Driver ............................................................................................................................ 21
5.3.1. SCL3711 listing..................................................................................................... 21
5.3.2. Supported operating systems ............................................................................... 21
5.3.3. PC/SC 2.0 compliant ATR .................................................................................... 22
5.4. Firmware ...................................................................................................................... 27
5.4.1. Transport protocol................................................................................................. 27

5.4.2. Automatic PPS ...................................................................................................... 27
6. Commands description .................................................................................................... 28
6.1. Generic APDUs ............................................................................................................ 28
Get UID Command.............................................................................................................. 28
Get DATA Command .......................................................................................................... 29
6.2. Set of APDU for contactless storage user tokens........................................................ 30
6.2.1. STORAGE_CARD_CMDS_READ_BINARY ........................................................ 30
6.2.2. STORAGE_CARD_CMDS_WRITE_BINARY ...................................................... 31
6.2.3. 32
6.2.4. STORAGE_CARD_CMDS_LOAD_KEYS ............................................................ 34
6.2.5. STORAGE_CARD_CMDS_AUTHENTICATE...................................................... 35
6.2.6. 35
6.2.7. STORAGE_CARD_CMDS_VALUE_BLOCK ....................................................... 37
6.3. Set of APDU for ISO/IEC 14443-4 user tokens ........................................................... 38
6.3.1. T=CL Command.................................................................................................... 38
6.4. Set of APDU defined by SCM Microsystems ............................................................... 39
6.4.1. Commands for communicating with NFC Forum Tags Type 1 tags..................... 39
6.4.2. Commands for communicating with NFC Forum Tags Type 2............................. 45
6.4.3. Commands for communication with NFC Forum Tags Type 3............................. 45
6.4.4. Commands for communicating with NFC Forum Tags Type 4............................. 47
7. Annexes ........................................................................................................................... 48
7.1. Annex A ........................................................................................................................ 48
7.1.1. Status words table ................................................................................................ 48
7.1.2. Further information about PC/SC.......................................................................... 48
7.2. Annex B – Mechanical drawings .................................................................................. 49

SCL3711 R EFERENCE M ANUAL 7
1.Legal information
1.1. Disclaimers
The content published in this document is believed to be accurate. SCM Microsystems does
not, however, provide any representation or warranty regarding the accuracy or completeness
of its content and regarding the consequences of the use of information contained herein. If this
document has the status “Draft”, its content is still under internal review and yet to be formally
validated.
SCM Microsystems reserves the right to change the content of this document without prior
notice. The content of this document supersedes the content of previous versions of the same
document. The document may contain application descriptions and/or source code examples,
which are for illustrative purposes only. SCM Microsystems gives no representation or warranty
that such descriptions or examples are suitable for the application that the reader may want to
use them for.
Should you notice problems with the provided documentation, please provide your feedback to
[e-mail].
1.2. Licenses
If the document contains source code examples, they are provided for illustrative purposes only
and subject to the following restrictions:
• You MAY at your own risk use or modify the source code provided in the document
in applications you may develop. You MAY distribute those applications ONLY in
form of compiled applications.
• You MAY NOT copy or distribute parts of or the entire source code without prior
written consent from SCM Microsystems.
• You MAY NOT combine or distribute the source code provided with Open Source
Software or with software developed using Open Source Software in a manner that
subjects the source code or any portion thereof to any license obligations of such
Open Source Software.
If the document contains technical drawings related to SCM Microsystems products, they are
provided for documentation purposes only. SCM Microsystems does not grant you any license
to its designs.
1.3. Trademarks
MIFARE is a registered trademark of NXP Semiconductors BV.
FeliCa is a registered trademark of Sony Corporation.
Jewel and Topaz are trademarks of Innovision Research and Technology Plc.
Windows is a registered trademark of Microsoft Corporation

SCL3711 R EFERENCE M ANUAL 8
2.Introduction to the manual
2.1. Objective of the manual
This manual provides an overview of the hardware and software features of the SCL3711
multiprotocol mobile contactless reader, hereafter referred to as “SCL3711”.
This manual describes in details interfaces and supported commands available for developers
using SCL3711 in their applications.
2.2. Target audience
This document describes the technical implementation of SCL3711.
The manual targets software developers. It assumes knowledge about 13.56 MHz contactless
technologies like ISO/IEC 14443 and commonly used engineering terms.
Should you have questions, you may send them to [e-mail] .
2.3. Product version corresponding to the manual
Item Version
Hardware 0.2
Firmware 2.7.0
Driver 1.02

SCL3711 R EFERENCE M ANUAL 9
2.4. Definition of various terms and acronyms
Term Expansion
APDU Application Protocol Data Unit
ATR Answer to Reset, defined in ISO7816
ATS Answer to Select, defined in ISO14443
Byte Group of 8 bits
CCID Chip Card Interface Device
CID Card Identifier
CL Contactless
CLA Class byte defined in ISO 7816
DFU Device Firmware Upgrade
FeliCa™ Sony contactless technology standardized in ISO18092, technology underlying the
NFC Forum tag type 3
INS Instruction byte defined in ISO7816
Jewel/Topaz Innovision contactless technology, technology underlying the NFC Forum tag type
1
LED Light emitting diode
MIFARE The ISO14443 Type A with extensions for security (NXP)
NA Not applicable
NAD Node Address
NDEF NFC Data Exchange Format: data structure defined by the NFC Forum for NFC
Forum tags.
NFC Near Field Communication
Nibble Group of 4 bits. 1 digit of the hexadecimal representation of a byte.
Example: 0xA3 is represented in binary as (10100011)b. The least significant
nibble is 0x3 or (0011)b and the most significant nibble is 0xA or (1010)b
P2P Peer – to – Peer
PCD Proximity Coupling Device
PC/SC Personal Computer/Smart Card: software interface to communicate between a PC
and a smart card
PICC Proximity Integrated Chip Card
PID Product ID
Proximity Distance coverage till ~10 cm.
PUPI Pseudo unique PICC identifier
RFU Reserved for future use
RF Radio Frequency
STCIII Smart card reader controller ASIC from SCM Microsystems
SW1 SW2 Status word defined in ISO7816
USB Universal Serial Bus
VID Vendor ID
(xyz)b Binary notation of a number x, y, z ∈{0,1}
0xYY The byte value YY is represented in hexadecimal

SCL3711 R EFERENCE M ANUAL 10
2.5. References
Doc ref in
the manual
Description Issuer
ISO/IEC
7816-4
Identification cards - Integrated circuit(s) cards
with contacts
Part 4: Interindustry commands for interchange
ISO/IEC 7816-4: 1995 (E)
ISO / IEC
ISO/IEC
14443-4
Identification cards — Contactless integrated
circuit(s) cards — Proximity cards
Part 4: Transmission protocol ISO/IEC 14443-
4:2001(E)
ISO / IEC
ISO/IEC
18092
Information technology — Telecommunications
and information exchange between systems —
Near Field Communication — Interface and
Protocol (NFCIP-1) ISO/IEC 18092:2004(E)
ISO / IEC
NFC Forum
tag type 1
NFCForum-TS-Type-1-Tag_1.0 NFC Forum
NFC Forum
tag type 2
NFCForum-TS-Type-2-Tag_1.0 NFC Forum
NFC Forum
tag type 3
NFCForum-TS-Type-3-Tag_1.0 NFC Forum
NFC Forum
tag type 4
NFCForum-TS-Type-4-Tag_1.0 NFC Forum
PC/SC Interoperability Specification for ICCs and
Personal Computer Systems v2.01
PC/SC Workgroup
NFC
wrapper
User manual of the NFC wrapper. This manual
is part of SCM’s Contactless SDK.
SCM Microsystems
CCID Specification for Integrated Circuit(s) Cards
Interface Devices 1.1
USB-IF
USB Universal Serial Bus Specification 2.0 USB-IF

SCL3711 R EFERENCE M ANUAL 11
2.6. Conventions
Bits are represented by lower case ‘b’ where followed by a numbering digit.
Bytes are represented by upper case ‘B’ where followed by a numbering digit.
Example:
163 in decimal is represented
• in hexadecimal as 0xA3
• in binary as (10100011)b
The least significant nibble of 0xA3 is
• 0x3 in hexadecimal
• (0011)b in binary
The most significant nibble of =xA3 is
• 0xA in hexadecimal
• (1010)b in binary

SCL3711 R EFERENCE M ANUAL 12
3.General information about SCL3711
3.1. SCL3711 key benefits
With its functional solid mechanical design that has no removable parts that you may loose,
SCL3711 is perfect for mobile uses.
While being slim, SCL3711 dimensions have been optimized to ensure best RF performance
possible with such a form factor.
The state of the art multi-protocol feature set of SCL3711 qualifies it to be used in a wide range
of applications such as payment, loyalty and ID schemes, or to enable devices with NFC
connectivity.
As a latest generation product, SCL3711 can be supported by SCM’s middleware that resides
above the PC/SC API and offers better portability of applications and abstraction of smart card
related details that need to be handled by applications developed on top of the PC/SC API.
3.2. SCL3711 key features
• Multi-protocol 13.56MHz contactless reader:
oISO14443 type A & B,
oMIFARE,
oFeliCa™
oNFC Peer-to-peer communication will be available through driver upgrade
• PC/SC v2.0 compliant

SCL3711 R EFERENCE M ANUAL 13
3.3. SCL3711 ordering information
Item Part number
SCL3711 905108
Contactless SDK 905124
3.4. SCL3711 customization options
Upon request, SCM can customize:
• The color of the casing
• The logo
• The product label
• The USB strings
Terms and conditions apply, please contact your local SCM representative or send an email to
[e-mail].

SCL3711 R EFERENCE M ANUAL 14
3.5. Contactless communication principles and SCL3711
usage recommendations
SCL3711 is a contactless reader
1
designed
to communicate with user tokens.
User tokens
2
are made of a contactless
integrated circuit card connected to an
antenna
User tokens can take several form factors:
• Credit card sized smart card
• Key fob
• NFC mobile phone etc…
Communication between SCL3711 and user tokens uses magnetic field inductive coupling.
The magnetic field generated by SCL3711 has a carrier frequency of 13.56MHz.
3.5.1. Power supply
When the user token is put in the magnetic field of the reader, its antenna couples with the
reader and an induction current appears in the antenna thus providing power to the integrated
circuit. The generated current is proportional to the magnetic flux going through the antenna of
the user token.
3.5.2. Data exchange
The carrier frequency of the magnetic field is used as a fundamental clock signal for the
communication between the reader and the card. It is also use as a fundamental clock input for
the integrated circuit microprocessor to function.
To send data to the user token the reader modulates the amplitude of the field. There are
several amplitude modulation and data encoding rules defined in ISO/IEC 14443 and ISO/IEC
18092. The reader should refer to those standards for further details.
To answer to the reader, the integrated circuit card of the user token modulates its way of
loading (impedance) the field generated by the reader. Here also further details can be found in
ISO/IEC 14443 and ISO/IEC 18092.
1
In the ISO/IEC 14443 standard, the reader is called the proximity coupling device (PCD)
2
In the ISO/IEC 14443 standard, the user token is called proximity integrated chip card (PICC)
User tokens
SCL3711

SCL3711 R EFERENCE M ANUAL 15
3.5.3. Recommendations
The communication between the reader and the user token is sensitive to the presence of
material or objects interfering with the magnetic field generated by the reader.
The presence of conductive materials like metal in the vicinity of the reader and the user token
can severally degrade the communication and even make it impossible. The magnetic field of
the reader generates Eddy or Foucault’s currents in the conductive materials; the field is
literally absorbed by that kind of material.



It is recommended for proper communication to avoid putting SCL3711 in
close proximity of conductive materials.
The presence of multiple user tokens in the field also interferes with the communication. When
several user tokens are in the field of the reader, load of the field increases which implies that
less energy is available for each of them and that the system is detuned. For this reason, SCM
Microsystems has implemented in its driver the support for 1 slot only.



It is recommended to present only one user credential at a time in front of
SCL3711.
The communication between the reader and the user token is sensitive to the geometry of the
system {reader, user token}. Parameters like the geometry and specially the relative size of the
reader and user token antennas directly influence the inductive coupling and therefore the
communication.
SCL3711 was primarily designed and optimized to function with user credentials of various
technologies having the size of a credit card.



It may happen that SCL3711 is not capable of communicating with extremely
large or extremely small antennas.



In order to optimize the coupling between the reader and the user token, it is
recommended to put both antennas as parallel as possible



In order to optimize transaction speed between the reader and the card it is
recommended to place the user token as close as possible to the reader. This
will increase the amount of energy supplied to the user credential which will
then be able to use its microprocessor at higher speeds

SCL3711 R EFERENCE M ANUAL 16
3.6. Applications
3.6.1. General
SCL3711 is a transparent reader designed to interface a personal computer host supporting
PC/SC interface with 13.56MHz user tokens like public transport cards, contactless banking
cards, NFC forum tags, electronic identification documents – e.g. e-passports, e-ID cards,
driving licenses etc.
Those user tokens can have several form factors like credit cards, key fobs, NFC mobile
phones or USB dongles like SCT3511 that SCM Microsystems markets.
SCL3711
SCL3711 itself handles the communication protocol but not the application related to the token.
The application-specific logic has to be implemented by software developers on the host.
3.6.2. Applications provided by SCM Microsystems
SCM Microsystems does not provide payment or transport applications.
SCM Microsystems provides a few applications for development and evaluation purposes that
can function with SCL3711. They are available within the software development kit. There are
many tools provided but the two main ones are:
• The NFC forum tag reader/writer is a standalone application that enables the user to
read and write NFC forum compliant records into NFC forum compatible tags. It is an
easy to use tool to configure rapidly NFC forum tag demonstrations.
• Smart card commander version 1.1 provides a module which for NFC forum tags that
parses and presents in XML format the content of the tag. Smart card commander
also contains powerful scripting functionality which can be very useful for developers
to develop and debug their applications.

SCL3711 R EFERENCE M ANUAL 17
4.SCL3711 characteristics
4.1. SCL3711 high level architecture
4.1.1. Block diagram
The link between SCL3711 and the host to which it is connected is the USB interface providing
both the power and the communication channel.
SCL3711 is based designed around an NFC controller which handles the USB communication
to the host and the RF communication. This controller ensures the coding/decoding/framing
modulation/demodulation required for the RF communication.
The matching circuitry provides the transmission and receiver paths adaptation for the antenna
to function properly.
4.1.2. Software architecture
Applications can interface with the driver
directly through the PC/SC interface or
through the SCM proprietary interface to the
NFC wrapper.
The NFC wrapper simplifies the usage of
the different NFC Forum tags with the
SCL3711 and other SCM contactless
readers. It provides a unique API to
application developers, which enables them
to read and modify NDEF records without
further knowledge of the underlying
hardware and protocols. Detailed
information about the NFC wrapper can be
found in SCM’s Contactless SDK.
The SCL3711 driver implements PC/SC v2.0 API towards upper layers.
Application
SCM’s NFC
wrapper
Driver
Firmware
SCM API (for P2P and
extra services)
PC/SC v2.0 API (ADPU
from ISO/IEC 7816-4
and SCM defined)

SCL3711 R EFERENCE M ANUAL 18
4.2. Quick reference data
4.2.1. SCL3711 dimensions
Item Characteristic Value
Weight 10.2 Grams
External
dimensions(mm) 65.4(L) x 24(W) x 10 (H)
Cable length NA
Default color BLACK Textured Finish
Default logo SCM logo
SCL3711
Default label
Drawing with dimensions of the SCL3711 and accessories can be found in annex.
4.2.2. LED behavior
The LED behavior of the SCL3711 is given below.
SCL3711 states LED Indication (GREEN)
After plug-in (no driver loaded) OFF
Driver successfully loaded ON
User token arriving in the field One blink
User token removed from the field ON, no specific visual indication
Suspend/hibernate/shutdown state OFF
SCL3711 disabled OFF
4.2.3. Other data
Parameter Value/Description
DC characteristics
Low bus powered (SCL3711 draws power from USB bus)
Voltage: 5V
Max Current : 100mA
Suspend current : 260uA
Clock of the device
controller Max 27.12MHz
RF carrier frequency 13.56 MHz +/- 50 ppm
Modulation 12 to 14 %
Unloaded field strength 1.5 A/m to 2.2 A/m ( Un-modulated RF on reader casing)
USB specification USB 2.0 FS Devise

SCL3711 R EFERENCE M ANUAL 19
USB Speed Full Speed Device (12Mbit/s)
Device Class Vendor
PID 0x5591
VID 0x04E6
API PC/SC 2.0
ID1 format tokens supported
NFC forum tag type 1 through SCM-specific APDU
NFC forum tag type 2 through PC/SC-defined APDUs
NFC forum tag type 3 through SCM-specific APDU
NFC forum tag type 4 through PC/SC APDUs
ISO/IEC 14443-4 PICC type A and type B
MIFARE, Non-Secure FeliCa™
Maximum baud rate 848 Kbps
Multiple PICC in field Not supported
Operating temperature
range <TBC>
Operating humidity range <TBC>
Storage condition range <TBC>
Certifications
USB
CE
FCC
VCCI
WEEE
RoHS
WHQL
UL
Radio Frequency for Japan

SCL3711 R EFERENCE M ANUAL 20
5.Software modules
5.1. Installation
No installer is available for installing the version of the driver this manual covers.
To manually install the driver, please follow the following steps
• Extract the content of the ZIP file SCM Microsystems has sent you
• Plug-in the SCL3711

• Manually select the location where you extracted the driver to

