topic Re: UART 'AMR' support in Kinetis Microcontrollers https://community.nxp.com/t5/Kinetis-Microcontrollers/UART-AMR-support/m-p/790461#M48082 <HTML><HEAD></HEAD><BODY><P>Scott<BR /><BR />I also suspect it means Automatic Meter Reading (from smart electrical metering - or AMI - Automatic Metering Infrastructure) for connection to a RF module of some sort. Perhaps a UART based bus with open drain is required in such systems since that looks to be the main reason for the UARTs to be AMR compliant.</P><P></P><P>Regards</P><P></P><P>Mark</P></BODY></HTML> Fri, 23 Nov 2018 01:20:56 GMT mjbcswitzerland 2018-11-23T01:20:56Z UART 'AMR' support https://community.nxp.com/t5/Kinetis-Microcontrollers/UART-AMR-support/m-p/790460#M48081 <HTML><HEAD></HEAD><BODY><P>The MK22DX256VLF5 reference manual states that all of the UARTs have AMR support.&nbsp; It doesn't define AMR, and no further mention is made of this.&nbsp; Does anyone know what this is?</P><P></P><P>My best guess is that it's a reference to automatic meter reading, and maybe a protocol like IEC 61107, but I don't see anything else in the documentation to support that.</P><P></P><P>Searching NXP.com brings up information on&nbsp;anisotropic magnetoresistive angular position sensors, and the GSM adaptive multi-rate codec.&nbsp; Neither of those have anything to do with UARTs.</P></BODY></HTML> Thu, 22 Nov 2018 03:53:54 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/UART-AMR-support/m-p/790460#M48081 scottm 2018-11-22T03:53:54Z Re: UART 'AMR' support https://community.nxp.com/t5/Kinetis-Microcontrollers/UART-AMR-support/m-p/790461#M48082 <HTML><HEAD></HEAD><BODY><P>Scott<BR /><BR />I also suspect it means Automatic Meter Reading (from smart electrical metering - or AMI - Automatic Metering Infrastructure) for connection to a RF module of some sort. Perhaps a UART based bus with open drain is required in such systems since that looks to be the main reason for the UARTs to be AMR compliant.</P><P></P><P>Regards</P><P></P><P>Mark</P></BODY></HTML> Fri, 23 Nov 2018 01:20:56 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/UART-AMR-support/m-p/790461#M48082 mjbcswitzerland 2018-11-23T01:20:56Z