STRFNFCA datasheet(27/74 Pages) STMICROELECTRONICS

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STRFNFCA

Commands

Doc ID 023077 Rev 10

27/74

For more detailed examples of use with NFC Forum and ISO/IEC 15693 tags, refer to

Appendix D on page 62.

5.7

Listen command (0x05) description

In Card Emulation mode, this command listens for the command from an external reader.

Before sending this command, the application must select a protocol.

After reception of the LISTEN command and the return of a ‘No error’ confirmation, the

STRFNFCA enters Listening mode. The STRFNFCA will exit Listening mode as soon it

receives a command from an external reader or the ECHO command (0x55) from the Host

Controller (MCU).

In all cases, the STRFNFCA will send data or an error code to the Host controller (MCU).

ISO/IEC

18092

NFC

Forum

Tag Type

Response

example

80 12

01010105017B0...93FF

<<<0x801201010105017B

06941004014B024F4993F

F00

Result code

Length of entire data

field

Data received from tag

[7:2]: RFU

1: CRC error if set

0: RFU

Table 15.

List of <Data> Response values for the SENDRECV command for different

protocols (continued)

Protocol

Explanation

Response example

Comments

Table 16.

LISTEN

command description

Direction

Data

Comments

Example

Host to

STRFNFCA

Command code

0500

: Enters a Listening mode where

the STRFNFCA waits for a command

from an external reader.

Length of data

STRFNFCA to

Host

Result code

0000

No error. Confirmation that

STRFNFCA now is in Listening mode

Length of data

STRFNFCA to

Host

Error code

8200

Invalid command length

Length of data

STRFNFCA to

Host

Error code

8300

Invalid protocol or protocol is not

supported. For example, application

selects protocol Iso-15693 using

command select protocol and then

executes command LISTEN. Iso-15693

is not supported in Card Emulation

mode

Length of data

STRFNFCA to

Host

Error code

8F00

No field. Command cannot be

executed because there is no external

field

Length of data

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