AN3985 datasheet(29/105 Pages) STMICROELECTRONICS

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AN3985

ISO/IEC 15693 layer

Doc ID 022255 Rev 2

29/105

ISO/IEC 15693 layer

This layer is composed of:

●

the source file: iso15693_command.c

●

the included file: iso15693_command.h

5.1

Overview

The ISO/IEC 15693 specification defines a set of commands to handle one or more

contactless tags, and some commands of a higher level such as read or write commands.

This layer supports all the commands defined in the ISO/IEC 15693 specification and

integrates some functions to facilitate the use of the ISO/IEC 15693 commands.

5.2

Structures

This layer uses a structure to store the information of an ISO/IEC contactless tag.

5.2.1

Structures of command and response of an ISO/IEC 15693 tag

The ISO15693_tag structure contains the different fields associated to an ISO/IEC15693

contactless tag.

Table 38.

ISO15693_tag structure description

Name

Number of bytes

Comment

command_ok

The command and the response

are ok, the structure is ok.

error_code

Error code of a contactless tag or

CRC error

response_flags

Response flag provided by the tag

dataField

ISO15693_DATA_RECEIVED_MAX

_SIZE

Whole data transmitted by the tag

and CR95HF control byte

receivedDataLength

Length of data transmitted by the

Tag

UID_Tag

ISO15693_UID_SIZE

UID of the contactless tag

AFI_Tag

AFI of the contactless tag

DSFID_Tag

DSFID of the contactless tag

ICRef

ICRef of the Tag (only for those

manufactured by

STMicroelectronics).

memSize

ISO15693_MEMSIZE_MAX_WORD_

BYTE_SIZE

Memfield of getsystem info

command

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