AN2646 datasheet(28/43 Pages) STMICROELECTRONICS

Part #	AN2646

Description	Smartcard interface with the STM8S microcontroller

PDF	43 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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Smartcard interface library: description

AN2646 - Application note

28/43

Figure 10.

State machine for smartcard operation

SC_ADPU_Commands

The SC_APDU_Commands structure is defined in the smartcard.h file:

typedef struct

{

SC_Header Header;

SC_Body Body;

} SC_ADPU_Commands;

●

Header

Specifies the APDU command header. It is of the SC_Header type, which is defined in

the smartcard.h file:

typedef struct

{

u8 CLA;

/* Command class */

u8 INS;

/* Operation code */

u8 P1;

/* Selection Mode */

u8 P2;

/* Selection Option */

} SC_Header;

●

CLA

Specifies the class designation of the command set to establish a collection of

instructions.

●

INS

Specifies a specific instruction from within the set of instructions.

●

Specifies the addressing used by the [CLA, INS] instruction.

●

Specifies the addressing used by the [CLA, INS] instruction.

●

Body

Specifies the APDU command body. It is of the SC_Body type, which is defined in the

smartcard.h file:

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