ST25DV04KC datasheet(39/203 Pages) STMICROELECTRONICS

Part #	ST25DV04KC

Description	Dynamic NFC/RFID tag IC with 4-Kbit, 16-Kbit or 64-Kbit EEPROM, fast transfer mode capability and optimized I2C

PDF	203 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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39 / 203 page

RF_GET_MSG:

•

A pulse is emitted on GPO when RF has successfully read a message, up to its last byte, in fast transfer

mode mailbox.

•

When RF_GET_MSG is activated, a pulse of duration IT_TIME is emitted on GPO at completion of valid

Read Message or Fast Read Message commands (after EOF of ST25DVxxKC response), and end of

message has been reached.

Figure 22. RF_GET_MSG chronogram

2) VCD sends a Read Message or Fast Read Message command and ST25DVxxKC replies with

error. GPO/RF_GET_MSG remains high-Z.

3) VCD sends Read Message or Fast Read Message command and ST25DVxxKC stays quiet

(command not for this VICC, or quiet state). GPO/RF_GET_MSG stays high-Z.

Read Msg

Command

GPO/RF_GET_MSG

Read Msg

command

1) VCD sends a Read Message or Fast Read Message command and ST25DVxxKC replies with no error.

GPO/RF_GET_MSG generates a pulse during IT_TIME after ST25DVxxKC response.

GPO/RF_GET_MSG

ST25DVxxKC

Read Msg

command

ST25DVxxKC

4) VCD sends any other command than Read Message or Fast Read Message commands and

ST25DV replies. GPO/RF_GET_MSG remains high-Z.

GPO/RF_GET_MSG

Any other

command

ST25DVxxKC

ST25DV04KC ST25DV16KC ST25DV64KC

GPO

DS13519 - Rev 3

page 39/203

ST25DV04KC Datasheet(PDF) 39 Page - STMicroelectronics