AN2284 datasheet(30/40 Pages) STMICROELECTRONICS

Part #	AN2284

Description	Smart Card Interface with the STR71xx

PDF	40 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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30 / 40 page

8 SC Reader Lib: Description

AN2284

30/40

Figure 10. State Machine for Smart Card Operation

8.1.3

CmdStatus

CmdStatus retrieves the smart card status response related to the selected ADPU command

according the ISO7816 standard.

Possible card answers:

- SC_EF_SELECTED

- SC_DF_SELECTED

- SC_OP_TERMINATED

- SC_DF_EXISTENT

- SC_EF_NOT_SELECTED

- SC_ID_NOT_FOUND

- SC_MEMORY_PROBLEM

- SC_WRONG_HEADER

- SC_WRONG_P1_P2

- SC_WRONG_LC_LE

8.2

How to Send ADPU Commands to SC

A detailed description on how to use the SC_Handler( ) function to send the ADPU command to

SC and retrieve the card response is found below.

Power off

Power on

Reset low

Active

Active on T0

Reset high

User force power on

ATR received with RST=0

No ATR received

ATR received with RST=1

T0 protocol

AN2284 Datasheet(PDF) 30 Page - STMicroelectronics