AN3985 datasheet(53/105 Pages) STMICROELECTRONICS

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AN3985

ISO/IEC 15693 layer

Doc ID 022255 Rev 2

53/105

ISO15693_Get_ProtocolExtension_Flag function

This function returns Protocol extension flag from Request Flags.

ISO15693_Get_Select_Flag function

This function returns the select flag to determine if the command is designated to the

contactless tag in the selected mode.

Note: a check is made to ensure that the inventory flag is reset.

ISO15693_Get_Address_Flag function

This function returns the address flag to determine if the command is addressed to the

contactless tag designed by its UID.

Note:

A check is made to ensure that the inventory flag is reset.

Table 86.

ISO15693_Get_ProtocolExtension_Flag function description

Prototype

u8 ISO15693_Get_ProtocolExtension_Flag(const u8

Request_flags);

Input parameter

Request_flags: information flags containing the data

Output parameter

None

Return parameter

ISO15693_NO_PROTOCOL_EXTENSION: There is no protocol format

extension.

ISO15693_PROTOCOL_EXTENSION: Protocol format is extended.

Table 87.

ISO15693_Get_Select_Flag function description

Prototype

u8 ISO15693_Get_Select_Flag(const u8 Request_flags);

Input parameter

Request_flags: information flags containing the data

Output parameter

None

Return parameter

ISO15693_SELECT_FLAG_SET: The select flag is set.

ISO15693_SELECT_FLAG_RESET: The select flag is reset.

ISO15693_ERROR_INVALID_FLAG: Bit 3 is set so the parameter does not exist.

Table 88.

ISO15693_Get_Address_Flag function description

Prototype

u8 ISO15693_Get_Address_Flag(const u8 Request_flags);

Input parameter

Request_flags: information flags containing the data

Output parameter

None

Return parameter

ISO15693_ADDRESS_FLAG_SET: The address flag is set.

ISO15693_ADDRESS_FLAG_RESET: The address flag is reset.

ISO15693_ERROR_INVALID_FLAG: Bit 3 is set so the parameter does not exist.

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