https://community.nxp.com/t5/Wireless-MCU/sl3l4011-Failed-to-modify-Configuration-word-using-RF/m-p/1478636#M13294 <P>The problem I encountered is that the I2C interrupt cannot be turned on using RF, and every time the card reader returns the value of the Configuration word is 0x0240</P> Thu, 23 Jun 2022 02:26:15 GMT 2996467262 2022-06-23T02:26:15Z https://community.nxp.com/t5/Wireless-MCU/sl3l4011-Failed-to-modify-Configuration-word-using-RF/m-p/1478636#M13294 <P>The problem I encountered is that the I2C interrupt cannot be turned on using RF, and every time the card reader returns the value of the Configuration word is 0x0240</P> Thu, 23 Jun 2022 02:26:15 GMT https://community.nxp.com/t5/Wireless-MCU/sl3l4011-Failed-to-modify-Configuration-word-using-RF/m-p/1478636#M13294 2996467262 2022-06-23T02:26:15Z https://community.nxp.com/t5/Wireless-MCU/sl3l4011-Failed-to-modify-Configuration-word-using-RF/m-p/1484233#M13347 <P>Hi</P> <P>Maybe you are referring to SL3S4011, we don't have&nbsp;<SPAN class="lia-link-navigation lia-link-disabled">sl3l4011as you mentioned.</SPAN></P> <P>Please refer to below link for UCODE configuration.&nbsp;</P> <P><A href="https://community.nxp.com/t5/NFC/SL3S4011-access-DownloadReg-ConfigWord/m-p/638641" target="_blank" rel="noopener">https://community.nxp.com/t5/NFC/SL3S4011-access-DownloadReg-ConfigWord/m-p/638641</A></P> <P>I hope it helps.</P> <P>&nbsp;</P> <P>Regards</P> <P>Daniel</P> Tue, 05 Jul 2022 01:22:11 GMT https://community.nxp.com/t5/Wireless-MCU/sl3l4011-Failed-to-modify-Configuration-word-using-RF/m-p/1484233#M13347 danielchen 2022-07-05T01:22:11Z