ACS ACR38K User Manual

ACR38x CCID

Smart Card Reader

Reference Manual V6.04

Subject to change without prior notice info@acs.com.hk

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Table of Contents

1.0. Introduction ............................................................................................................... 4

1.1. Reference Documents ........................................................................................................... 4

1.2. Symbols and Abbreviations ................................................................................................... 4

2.0. Features ..................................................................................................................... 5

3.0. Smart Card Support .................................................................................................. 6

3.1. MCU Cards ............................................................................................................................ 6

3.2. Memory-based Smart Cards .................................................................................................. 6

4.0. Smart Card Interface ................................................................................................. 7

4.1. Smart Card Power Supply VCC (C1) .................................................................................... 7

4.2. Programming Voltage VPP (C6) ............................................................................................ 7

4.3. Card Type Selection .............................................................................................................. 7

4.4. Interface for Microcontroller-based Cards ............................................................................. 7

4.5. Card Tearing Protection ......................................................................................................... 7

5.0. Power Supply ............................................................................................................ 8

5.1. Status LED ............................................................................................................................. 8

6.0. USB Interface ............................................................................................................. 9

6.1. Communication Parameters .................................................................................................. 9

6.2. Endpoints ............................................................................................................................... 9

7.0. Communication Protocol ....................................................................................... 10

8.0. Memory Card Type Selection ................................................................................. 12

9.0. Commands ............................................................................................................... 13

9.1. CCID Command Pipe Bulk-OUT Messages ........................................................................ 13

9.1.1. PC_to_RDR_IccPowerOn ........................................................................................... 13

9.1.2. PC_to_RDR_IccPowerOff ........................................................................................... 13

9.1.3. PC_to_RDR_GetSlotStatus ........................................................................................ 13

9.1.4. PC_to_RDR_XfrBlock ................................................................................................. 14

9.1.5. PC_to_RDR_GetParameters ...................................................................................... 14

9.1.6. PC_to_RDR_ResetParameters .................................................................................. 15

9.1.7. PC_to_RDR_SetParameters ...................................................................................... 15

9.2. CCID Bulk-IN Messages ...................................................................................................... 18

9.2.1. RDR_to_PC_DataBlock .............................................................................................. 18

9.2.2. RDR_to_PC_SlotStatus .............................................................................................. 18

9.2.3. RDR_to_PC_Parameters ............................................................................................ 19

9.3. Memory Card Command Set ............................................................................................... 20

9.3.1. Memory Card – 1, 2, 4, 8 and 16 Kbit I2C Card ......................................................... 20

9.3.2. Memory Card – 32, 64, 128, 256, 512, and 1024 Kbit I2C Card ................................ 22

9.3.3. Memory Card – ATMEL AT88SC153 .......................................................................... 25

9.3.4. Memory Card – ATMEL AT88C1608 .......................................................................... 28

9.3.5. Memory Card – SLE 4418/SLE 4428/SLE 5518/SLE 5528 ........................................ 32

9.3.6. Memory Card – SLE 4432/SLE 4442/SLE 5532/SLE 5542 ........................................ 37

9.3.7. Memory Card – SLE 4406/SLE 4436/SLE 5536/SLE 6636 ........................................ 42

9.3.8. Memory Card – SLE 4404 .......................................................................................... 46

9.3.9. Memory Card – AT88SC101/AT88SC102/AT88SC1003 ........................................... 50

9.4. Other Commands Access via PC_to_RDR_XfrBlock .......................................................... 56

9.4.1. GET_READER_INFORMATION ................................................................................ 56

Appendix A. Supported Card Types ............................................................................... 57

Appendix B. Response Error Codes .............................................................................. 58

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List of Tables

Table 1 : Symbols and Abbreviations ..................................................................................................... 4

Table 2 : USB Interface Wiring ............................................................................................................... 9

Table 3 : Supported Card Types .......................................................................................................... 57

Table 4 : Response Error Codes .......................................................................................................... 58

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1.0. Introduction

The ACR38x (CCID) PC-linked Smart Card Reader acts as an interface for the communication between a computer and a smart card. Different types of smart cards have different commands and different communication protocols, which, in most cases, prevent direct communication between a smart card and a computer. The ACR38x (CCID) Smart Card Reader establishes a uniform interface from the computer to the smart card for a wide variety of cards. By taking care of the card’s particulars, it releases the computer software programmer from being responsible with smart card operations’ technical details, which in many cases, are not relevant to the implementation of a smart card system.

1.1. Reference Documents

The following related documents are available from www.usb.org

• Universal Serial Bus Specification 2.0 (also referred to as the USB specification), April 27, 2000

• Universal Serial Bus Common Class Specification 1.0, December 16, 1997

• Universal Serial Bus Device Class: Smart Card CCID Specification for Integrated Circuit(s)

Cards Interface Devices, Revision 1.1, April 22, 2005

The following related documents can be ordered through www.ansi.org

• ISO/IEC 7816-1; Identification Cards – Integrated circuit(s) cards with contacts - Part 1: Physical Characteristics

• ISO/IEC 7816-2; Identification Cards – Integrated circuit(s) cards with contacts - Part 2: Dimensions and Locations of the contacts

• ISO/IEC 7816-3; Identification Cards – Integrated circuit(s) cards with contacts - Part 3: Electronic signals and transmission protocols

1.2. Symbols and Abbreviations

Abbreviation Description

ATR Answer-To-Reset

CCID Chip/Smart Card Interface Device

ICC Integrated Circuit Cards

IFSC Information Field Sized for ICC for protocol T=1

IFSD Information Field Sized for CCID for protocol T=1

NAD Node Address

PPS Protocol and Parameters Selection

RFU Reserved for future use*

TPDU Transport Protocol Data Unit

USB Universal Serial Bus

Table 1: Symbols and Abbreviations

*Must be set to zero unless stated differently.

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2.0. Features

• USB 2.0 Full Speed Interface

• Plug and Play – CCID support brings utmost mobility

• Smart Card Reader:

o Supports ISO 7816 Class A, B and C (5 V, 3 V, 1.8 V) cards

o Supports microprocessor cards with T=0 or T=1 protocol

o Supports memory cards

o Supports PPS (Protocol and Parameters Selection)

o Features Short Circuit Protection

• Application Programming Interface:

o Supports PC/SC

o Supports CT-API (through wrapper on top of PC/SC)

• Supports Android™ OS 3.1 and above

• Compliant with the following standards:

o EN60950/IEC 60950

o ISO 7816

o CE

o FCC

o VCCI

o PC/SC

o CCID

o EMV 2000 Level 1

o Microsoft WHQL

o RoHS

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3.0. Smart Card Support

3.1. MCU Cards

The ACR38x (CCID) is a PC/SC compliant smart card reader that supports ISO 7816 Class A, B and C (5 V, 3 V, and 1.8 V) smart cards. It also works with MCU cards following either the T=0 and T=1 protocol.

The card ATR indicates the specific operation mode (TA2 present; bit b5 of TA2 must be 0) and when that particular mode is not supported by the ACR38x (CCID), the reader will reset the card to a negotiable mode. If the card cannot be set to negotiable mode, the reader will then reject the card.

When the card ATR indicates the negotiable mode (TA2 not present) and communication parameters other than the default parameters, the ACR38x (CCID) will execute the PPS and try to use the communication parameters that the card suggested in its ATR. If the card does not accept the PPS, the reader will use the default parameters (F=372, D=1).

For the meaning of the aforementioned parameters, please refer to ISO 7816-3.

3.2. Memory-based Smart Cards

The ACR38x (CCID) works with several memory-based smart cards, such as:

• Cards following the I2C bus protocol (free memory cards) with maximum 128 bytes page with capability, including:

o Atmel: AT24C01/02/04/08/16/32/64/128/256/512/1024

o SGS-Thomson: ST14C02C, ST14C04C

o Gemplus: GFM1K, GFM2K, GFM4K, GFM8K

• Cards with secure memory IC with password and authentication, including:

o Atmel: AT88SC153 and AT88SC1608

• Cards with intelligent 1k bytes EEPROM with write-protect function, including:

o Infineon: SLE4418, SLE4428, SLE5518 and SLE5528

• Cards with intelligent 256 bytes EEPROM with write-protect function, including:

o Infineon: SLE4432, SLE4442, SLE5532 and SLE5542

• Cards with ‘104’ type EEPROM non-reloadable token counter cards, including:

o Infineon: SLE4406, SLE4436, SLE5536 and SLE6636

• Cards with Intelligent 416-Bit EEPROM with internal PIN check, including:

o Infineon: SLE4404

• Cards with Security Logic with Application Zone(s), including:

o Atmel: AT88SC101, AT88SC102 and AT88SC1003

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4.0. Smart Card Interface

The interface between the ACR38x (CCID) and the inserted smart card follows the specification of ISO 7816-3 with certain restrictions or enhancements to increase the practical functionality of ACR38x (CCID).

4.1. Smart Card Power Supply VCC (C1)

The current consumption of the inserted card must not be higher than 50 mA.

4.2. Programming Voltage VPP (C6)

According to ISO 7816-3, the smart card contact C6 (VPP) supplies the programming voltage to the smart card. Since all common smart cards in the market are EEPROM-based and do not require the provision of an external programming voltage, the contact C6 (VPP) has been implemented as a normal control signal in the ACR38x (CCID). The electrical specifications of this contact are identical to those of the signal RST (at contact C2).

4.3. Card Type Selection

The controlling PC must always select the card type through the proper command sent to the ACR38x (CCID) prior to activating the inserted card. This includes both the memory cards and MCU-based cards.

For MCU-based cards, the reader allows to select the preferred protocol, T=0 or T=1. However, this selection is only accepted and carried out by the reader through the PPS when the card inserted in the reader supports both protocol types. Whenever an MCU-based card supports only one protocol type, T=0 or selected by the application.

T=1, the reader automatically uses that protocol type, regardless of the protocol type

4.4. Interface for Microcontroller-based Cards

For microcontroller-based smart cards, only the contacts C1 (VCC), C2 (RST), C3 (CLK), C5 (GND) and C7 (I/O) are used. A frequency of 4 MHz is applied to the CLK signal (C3).

4.5. Card Tearing Protection

The ACR38x (CCID) provides a mechanism to protect the inserted card when it is suddenly withdrawn while it is powered up. The power supply to the card and the signal lines between the ACR38x (CCID) and the card is immediately deactivated when the card is being removed. However, as a rule to avoid any electrical damage, a card should only be removed from the reader while it is powered down.

Note: The ACR38x (CCID) never switches on the power supply to the inserted card by itself. The controlling computer through the proper command sent to the reader must explicitly do this.

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5.0. Power Supply

The ACR38x (CCID) requires a voltage of 5 V DC, 100 mA, regulated, power supply. The ACR38x (CCID) gets power supply from the computer (through the cable supplied along with each type of reader).

5.1. Status LED

The LED indicates the activation status of the smart card interface:

• Flashing slowly (turns on 200 ms every 2 seconds) Indicates ACR38x (CCID) is powered up and in the standby state. Either the smart card has not been inserted or the smart card has not been powered up (if it is inserted).

• Lighting up Indicates power supply to the smart card is switched on, i.e., the smart card is activated.

• Flashing quickly Indicates there are communications between ACR38x (CCID) and smart card.

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6.0. USB Interface

6.1. Communication Parameters

The ACR38x (CCID) is connected to a computer through USB as specified in the USB Specification

2.0. The ACR38x (CCID) is working in full speed mode, i.e. 12 Mbps.

Pin Signal Function

1 V

2 D- Differential signal transmits data between ACR38x (CCID) and PC

3 D+ Differential signal transmits data between ACR38x (CCID) and PC

4 GND Reference voltage level for power supply

Note: In order for the ACR38x (CCID) to function properly through USB interface, either ACS CCID driver or the Microsoft CCID driver has to be installed.

+5 V power supply for the reader

BUS

Table 2: USB Interface Wiring

6.2. Endpoints

The ACR38x (CCID) uses the following endpoints to communicate with the host computer:

Control Endpoint

Bulk OUT

Bulk IN

Interrupt IN

For setup and control purpose

For command to be sent from host to ACR38x (CCID) (data packet size is 64 bytes)

For response to be sent from ACR38x (CCID) to host (data packet size is 64 bytes)

For card status message to sent from ACR38x (CCID) to host

(data packet size is 8 bytes)

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7.0. Communication Protocol

ACR38x (CCID) shall interface with the host through the USB connection. A specification, namely CCID, has been released within the industry defining such a protocol for the USB chip-card interface devices. CCID covers all the protocols required for operating smart cards.

The configurations and usage of USB endpoints on ACR38x (CCID) shall follow CCID Rev 1.0 Section 3.

An overview is summarized below:

1. Control Commands are sent on control pipe (default pipe). These include class-specific requests and USB standard requests. Commands that are sent on the default pipe report information back to the host on the default pipe.

2. CCID Events are sent on the interrupt pipe.

3. CCID Commands are sent on BULK-OUT endpoint. Each command sent to ACR38x (CCID) has an associated ending response. Some commands can also have intermediate responses.

4. CCID Responses are sent on BULK-IN endpoint. All commands sent to ACR38x (CCID) have to be sent synchronously (e.g., bMaxCCIDBusySlots is equal to 01h for ACR38x (CCID)).

The ACR38x (CCID) supported CCID features are indicated in its Class Descriptor:

Offset Field Size Value Description

bLength

bDescriptorType

bcdCCID

bMaxSlotIndex

bVoltageSupport

dwProtocols

dwDefaultClock

dwMaximumClock

bNumClockSupported

dwDataRate

dwMaxDataRate

bNumDataRatesSupported

Size of this descriptor, in bytes.

CCID Functional Descriptor type.

CCID Specification Release Number in Binary-coded decimal.

One slot is available on ACR38x (CCID).

ACR38x (CCID) can supply 1.8 V, 3 V, and 5 V to its slot.

ACR38x (CCID) supports T=0 and T=1 protocol.

Default ICC clock frequency is 4 MHz.

Maximum supported ICC clock frequency is 4 MHz.

Does not support manual setting of clock frequency.

Default ICC I/O data rate is 10752 bps.

Maximum supported ICC I/O data rate is 344 kbps.

Does not support manual setting of data rates.

Maximum IFSD supported by ACR38x

dwMaxIFSD

dwSynchProtocols

dwMechanical

(CCID) for protocol T=1 is 254.

ACR38x (CCID) does not support synchronous card.

ACR38x (CCID) does not support special mechanical characteristics.

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Offset Field Size Value Description

ACR38x (CCID) supports the following features:

• Automatic ICC clock frequency change

dwFeatures

according to parameters

• Automatic baud rate change according to frequency and FI,DI parameters

• TPDU level change with ACR38x (CCID)

Maximum message length accepted by

dwMaxCCIDMessageLength

ACR38x (CCID) is 271 bytes.

bClassGetResponse

bClassEnvelope

wLCDLayout

bPINSupport

bMaxCCIDBusySlots

Insignificant for TPDU level exchanges.

No LCD.

With PIN Verification.

Only 1 slot can be simultaneously busy.

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8.0. Memory Card Type Selection

SELECT_CARD_TYPE command must be executed first before other memory card commands. This command powers up and down the selected card inserted in the card reader and performs a card reset. This command can only be used after the logical smart card reader communication has been established using the SCardConnect() API.

For details of SCardConnect() API, please refer to PC/SC specifications.

For the Memory Card Command Set, please refer to Section 9.3.

A code snippet for the program flow is given below to demonstrate how to select the memory card type in ACR38x (CCID):

SCARDCONTEXT hContext; SCARDHANDLE hCard; unsigned long dwActProtocol; SCARD_IO_REQUEST ioRequest; DWORD size = 64, SendLen = 6, RecvLen = 255, retCode; byte cardType;

//Establish PC/SC Connection retCode = SCardEstablishContext (SCARD_SCOPE_USER, NULL, NULL, &hContext);

//List all readers in the system retCode = SCardListReaders (hContext, NULL, readerName, &size);

//Connect to the reader retCode = SCardConnect(hContext, readerName, SCARD_SHARE_SHARED, SCARD_PROTOCOL_T0, &hCard, &dwActProtocol);

//Select Card Type unsigned char SendBuff[] = {0xFF,0xA4,0x00,0x00,0x01,cardType}; retCode = SCardTransmit( hCard, &ioRequest, SendBuff, SendLen, NULL, RecvBuff, &RecvLen);

//Disconnect from the reader retCode = SCardDisconnect(hCard, SCARD_UNPOWER_CARD);

//End the established context retCode = SCardReleaseContext(hContext);

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9.0. Commands

9.1. CCID Command Pipe Bulk-OUT Messages

ACR38x (CCID) shall follow the CCID Bulk-OUT Messages as specified in CCID Rev 1.0 Section 4.1. In addition, this specification defines some extended commands for operating additional features.

This section lists the CCID Bulk-OUT Messages to be supported by ACR38x (CCID).

9.1.1. PC_to_RDR_IccPowerOn

This command activates the card slot and returns ATR data from the card.

Offset Field Size Value Description

The response to this command message is the RDR_to_PC_DataBlock response message and the data returned is the Answer To Reset (ATR) data.

bMessageType

dwLength

bSlot

bSeq

bPowerSelect

abRFU

1 62h

4 00000000h Size of extra bytes of this message.

1 Sequence number for command.

2 Reserved for future use.

Identifies the slot number for this command.

Voltage that is applied to the ICC: 00h = Automatic Voltage Selection 01h = 5 volts 02h = 3 volts

9.1.2. PC_to_RDR_IccPowerOff

This command deactivates the card slot.

Offset Field Size Value Description

bMessageType

1 63h

The response to this message is the RDR_to_PC_SlotStatus message.

dwLength

bSlot

bSeq

abRFU

4 00000000h Size of extra bytes of this message.

1 Sequence number for command.

3 Reserved for future use.

Identifies the slot number for this command.

9.1.3. PC_to_RDR_GetSlotStatus

This command gets the current status of the slot.

Offset Field Size Value Description

bMessageType

dwLength

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1 65h

4 00000000h Size of extra bytes of this message.

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Offset Field Size Value Description

The response to this message is the RDR_to_PC_SlotStatus message.

bSlot

bSeq

abRFU

1 Sequence number for command.

3 Reserved for future use.

Identifies the slot number for this command.

9.1.4. PC_to_RDR_XfrBlock

This command transfers data block to the ICC.

Offset Field Size Value Description

bMessageType

dwLength

bSlot

bSeq

bBWI

1 6Fh

4 Size of abData field of this message.

1 Sequence number for command.

Identifies the slot number for this command.

Used to extend the CCIDs Block Waiting Timeout for this current transfer. The CCID will timeout the block after “this number multiplied by the Block Waiting Time” has expired.

The response to this message is the RDR_to_PC_DataBlock message.

wLevelParameter

abData

2 0000h RFU (TPDU exchange level).

Byte

array

Data block sent to the CCID. Data is sent “as is” to the ICC (TPDU exchange level).

9.1.5. PC_to_RDR_GetParameters

This command gets the slot parameters.

Offset Field Size Value Description

The response to this message is the RDR_to_PC_Parameters message.

bMessageType

DwLength

BSlot

BSeq

AbRFU

1 6Ch

4 00000000h Size of extra bytes of this message.

1 Sequence number for command.

3 Reserved for future use.

Identifies the slot number for this command.

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9.1.6. PC_to_RDR_ResetParameters

This command resets slot parameters to the default value.

Offset Field Size Value Description

The response to this message is the RDR_to_PC_Parameters message.

bMessageType

DwLength

BSlot

BSeq

AbRFU

1 6Dh

4 00000000h Size of extra bytes of this message.

1 Sequence number for command.

3 Reserved for future use.

Identifies the slot number for this command.

9.1.7. PC_to_RDR_SetParameters

This command sets the slot parameters.

Offset Field Size Value Description

bMessageType

dwLength

bSlot

bSeq

bProtocolNum

1 61h

4 Size of extra bytes of this message.

1 Sequence number for command.

Identifies the slot number for this command.

Specifies what protocol data structure follows.

00h = Structure for protocol T=0 01h = Structure for protocol T=1

The following values are reserved for future use:

80h = Structure for 2-wire protocol 81h = Structure for 3-wire protocol 82h = Structure for I2C protocol

Protocol Data Structure for Protocol T=0 (dwLength=00000005h)

Offset Field Size Value Description

abProtocolDataStructure

abRFU

bmFindexDindex

2 Reserved for future use.

Byte

array

Protocol Data Structure.

B7-4 – FI – Index into the table 7 in ISO/IEC 7816-3:1997 selecting a clock rate conversion factor

B3-0 – DI - Index into the table 8 in ISO/IEC 7816-3:1997 selecting a baud rate conversion factor

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Index into the table 7 in

3:1997 selecting a clock

3:1997 selecting a baud

Checksum type (b0=0 for LRC,

Convention used (b1=0 for direct,

b1=1 for inverse) Note: The CCID

Extra Guardtime (0 to 254 etu between

, then

Offset Field Size Value Description

B0 – 0b, B7-2 – 000000b

bmTCCKST0

B1 – Convention used (b1=0 for direct, b1=1 for inverse) Note: The CCID ignores this bit.

Extra Guardtime between two

bGuardTimeT0

characters. Add 0 to 254 etu to the normal guardtime of 12 etu. FFh is the same as 00h.

bWaitingIntegerT0

WI for T=0 used to define WWT

ICC Clock Stop Support

00h = Stopping the Clock is not allowed

bClockStop

01h = Stop with Clock signal Low

02h = Stop with Clock signal High

03h = Stop with Clock either High or Low

Protocol Data Structure for Protocol T=1 (dwLength=00000007h)

Offset Field Size Value Description

bmFindexDindex

BmTCCKST1

BGuardTimeT1

BwaitingIntegerT1

B7-4 – FI – ISO/IEC 7816rate conversion factor

B3-0 – DI - Index into the table 8 in ISO/IEC 7816rate conversion factor

B7-2 – 000100b

B0 – b0=1 for CRC)

B1 –

ignores this bit.

two characters). If value is FFh guardtime is reduced by 1 etu.

B7-4 = BWI values 0-9 valid

B3-0 = CWI values 0-Fh valid

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Offset Field Size Value Description

ICC Clock Stop Support

00h = Stopping the Clock is not allowed

bClockStop

01h = Stop with Clock signal Low

02h = Stop with Clock signal High

03h = Stop with Clock either High or Low

bIFSC

bNadValue

1 Size of negotiated IFSC

1 00h Only support NAD = 00h

The response to this message is the RDR_to_PC_Parameters message.

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9.2. CCID Bulk-IN Messages

The Bulk-IN messages are used in response to the Bulk-OUT messages. ACR38x (CCID) shall follow the CCID Bulk-IN Messages as specified in CCID Rev 1.0 Section 4.2.

This section lists the CCID Bulk-IN Messages to be supported by ACR38x (CCID).

9.2.1. RDR_to_PC_DataBlock

This command is sent by ACR38x (CCID) in response to PC_to_RDR_IccPowerOn, PC_to_RDR_XfrBlock and PC_to_RDR_Secure messages.

Offset Field Size Value Description

bMessageType

dwLength

bSlot

bSeq

bStatus

bError

bChainParameter

abData

1 80h

4 Size of extra bytes of this message.

1 Same value as in Bulk-OUT message.

1 00h RFU (TPDU exchange level).

Byte

array

Indicates that a data block is being sent from the CCID.

Slot status register as defined in CCID Rev 1.0 Section 4.2.1.

Slot error register as defined in CCID Rev 1.0 Section 4.2.1.

This field contains the data returned by the CCID.

9.2.2. RDR_to_PC_SlotStatus

This command is sent by ACR38x (CCID) in response to PC_to_RDR_IccPowerOff, PC_to_RDR_GetSlotStatus, PC_to_RDR_Abort messages and Class Specific ABORT request.

Offset Field Size Value Description

bMessageType

dwLength

bSlot

bSeq

bStatus

bError

1 81h

4 00000000h

Size of extra bytes of this message.

Same value as in Bulk-OUT message.

Slot status register as defined in CCID Rev 1.0 Section 4.2.1.

Slot error register as defined in CCID Rev 1.0 Section 4.2.1.

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