Iso 7816 class a b and c smart cards

CLK Frequency. Card Connector. Card Insertion Cycles. Physical Specifications. Gray, White. Cable length, cord, connector. Operating Conditions. Application Programming Interface. Device Driver Operating System Support. What is your business scope? What is your mode of payment? When will you delivery the goods?

Sample: days; Quantity order: days upon deposit received; Customized Product: according to the contract delivery time. Would you provide SDK for me? Yes, We offer free SDK if you order sample. For CIF price, I will check the cost from our shipping agent and recommend to you. How can you guarantee the quality? We have well-trained and professional workers and strict QC system in each production link.

What the after sale service? Our all products will provide 12 months warranty; b. Enough stock spare parts for guarantee; c. As for the returned failure products, we will fix it and return to the customers in one week after we received it. N is an extra guardtime requested by the card. No extra guardtme is used to send characters from the card to the interface device. TA1 codes FI over the most significant half byte b8 to b5 and DI over the least significant half byte b4 to b1. The most significant bit b8 equals to 0.

Table 6: Clock rate conversion factor F. Table 7: Bit rate adjustment factor D. PI1 from 5 to 25 gives the value of P in volts. Other values of PI1 are reserved for future use. When PI2 is present, the indication of PI1 should be ignores. PI2 from 50 to gives the value of P in 0.

Other values of PI2 are reserved for future use. Table 8 : Maximum programming current factor I. N codes directly the extra guard time, from 0 to etu. Any clock frequency between 7kHz and 50kHz may be chosen for the reset sequence. Structure of the header of the Answer to Reset The reset operation results in an answer from the card containing a header transmitted from the card to the interface. The header has a fixed length of 32 bits and begins with two mandatory fields of 8 bits, H1 and H2.

The chronological order of transmission of information bits shall correspond to bit identification b1 to b32 with the least significant bit transmitted first. The numerical meaning corresponding to each information bit considered in isolation is that of the digit. The first clock pulse is applied between 10us and us t14 after the falling edge on RST to read the data bits from the card.

State H of the clock pulses can be varied between 10us and 50us t15 and state L between 10us and us t The following data bits are valid 10us t17 at least after the falling edge on CLK. Each data bit is valid until the next falling edge the following clock pulse on CLK.

The data bits can therefore be sampled at the rising edge of the following clock pulses. Data content of the header The header allows a quick determination of whether the card and the interface device are compatible. If there is no compatibility, the contacts shall be deactivated.

The first field H1 codes the protocol type. The values of the codes and the corresponding protocol type are. The transmission protocol associated to the protocol type may be started immediately after the transmission of answer to reset. Only the interface device is permitted to start a PTS procedure:. It codes over the least significant bits b4 to b1 the selected protocol type T as coded in TD bytes.

Bit b1 set to 0 is the default and indicates that the 11 etu period is not used. If bit b2 is set to 1, the card shall use an extra guard time of 12 etu for its transmission of characters to the interface device.

Bit b2 set to 0 is the default and indicates that no extra guard time is required. Bit b3 to b8 are reserved for future use. If PTS2 is sent by the interface device and is not echoed by the card, the interface device should reject or reset the card. This clause defines the structure and processing of commands initiated by an interface device for transmission control and for card specific control in an asynchronous half duplex character transmission protocol.

This protocol uses the parameters indicated by the answer to reset, unless modified by the protocol type selection. When no TC2 appears in the answer to reset, the default value of WI is This maximum delay is named the work waiting time. It tells the card what to do in a 5-byte header, and allow a transfer of data bytes under control of procedure bytes sent by the card.

It is assumed that the card and the interface device know a priori the direction of data, in order to distinguish between instructions for incoming data transfer where data enter the card during execution and instructions for outgoing data transfers where data leave the card during execution. Figure 8 : Byte transmission diagram. All remaining encoding possibilities for the header are specified in subsequent parts of ISO After transmission of such 5 byte header, the interface device waits for a procedure byte.

Procedure bytes sent by the card. The value of the procedure bytes shall indicate the action requested by the interface device. Three types of procedure bytes are specified:. After these actions, the interface device waits for a new procedure. This byte is sent by the card to reset the work waiting time and to anticipate a subsequent procedure byte. The following five values are defined:. Other values are reserved for future use by ISO The end sequence SW1-SW2 gives the card status at the end of the command.

Supplement were seen sometimes :. It allows further standardization of additional inter-industry commands and security architectures. Biometrics Direct - Biometric Security Products. ISO This part describes the physical characteristics of integrated circuit cards. It includes accommodation of exposure limits for a number of electromagnetic phenomena such as X-rays, UV light, electromagnetic fields, static electrical fields, and ambient temperature of the card.

ISO part 2 defines the dimensions and location of the contacts. The following table contains the contact definition according to ISO Contact.

Power connection through which operating power is supplied to the microprocessor chip in the card. Reset line through which the IFD can signal to the smart card's microprocessor chip to initiate its reset sequence of instructions.

Clock signal line through which a clock signal can be provided to the microprocessor chip. This line controls the operation speed and provides a common framework for data communication between the IFD and the ICC. Most of ISO 3 is important for reader manufacturers or developers who want to establish a communication with a smart card on a very low level, the signal level.

Even if you don't go that far, it is quite interesting to read about what you can get out of an Answer to Reset ATR. GND : Ground reference voltage. VCC : Power supply input optional use by the card. VPP This contact may be to supply the voltage required to program or to erase the internal non-volatile memory. CLK The actual frequency, delivered by the interface device on CLK, is designated either by fi the initial frequency during the answer to reset, or by fs the subsequent frequency during subsequent transmission.

VCC This contact is used to supply the power voltage Vcc. VPP is idle. All remaining data bytes are transferred subsequently. VPP is active. Next data byte is transferred subsequently. Newt data byte is transferred subsequently. No further action on VPP.

The interface device waits for a new procedure byte. The interface device waits for a SW2 byte. Returned data may be corrupted. The end of the file has been reached before the end of reading.

Memory failure. Other hardware problems may also bring this error. The request function is not supported by the card. The parameters in the data field are incorrect. There is insufficient memory space in record or file. The P3 value is not consistent with the P1 and P2 values. It does not describe these algorithms.