topic preventing clone with mcf5441x in ColdFire/68K Microcontrollers and Processors https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/preventing-clone-with-mcf5441x/m-p/169626#M6165 <HTML><HEAD></HEAD><BODY><P>HI,</P><P>&nbsp;</P><P>&nbsp;&nbsp; I search the reference manual , but I can't find any thing like unique chip id.&nbsp; If there is no such unique id available in chip, how can we design a system that preventing clone? Thanks!</P><P>&nbsp;</P><P>&nbsp;</P><P>Br, gachen</P></BODY></HTML> Sat, 24 Sep 2011 22:00:53 GMT gachen 2011-09-24T22:00:53Z preventing clone with mcf5441x https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/preventing-clone-with-mcf5441x/m-p/169626#M6165 <HTML><HEAD></HEAD><BODY><P>HI,</P><P>&nbsp;</P><P>&nbsp;&nbsp; I search the reference manual , but I can't find any thing like unique chip id.&nbsp; If there is no such unique id available in chip, how can we design a system that preventing clone? Thanks!</P><P>&nbsp;</P><P>&nbsp;</P><P>Br, gachen</P></BODY></HTML> Sat, 24 Sep 2011 22:00:53 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/preventing-clone-with-mcf5441x/m-p/169626#M6165 gachen 2011-09-24T22:00:53Z Re: preventing clone with mcf5441x https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/preventing-clone-with-mcf5441x/m-p/169627#M6166 <HTML><HEAD></HEAD><BODY><P>External chip with a serial number, like one of the Maxim/Dallas OneWire chips.</P><P>&nbsp;</P><P>Tom</P><P>&nbsp;</P></BODY></HTML> Mon, 26 Sep 2011 06:43:53 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/preventing-clone-with-mcf5441x/m-p/169627#M6166 TomE 2011-09-26T06:43:53Z Re: preventing clone with mcf5441x https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/preventing-clone-with-mcf5441x/m-p/169628#M6167 <HTML><HEAD></HEAD><BODY><P>I manage to get a SPI flash with factory OTP, which can be used as a unique id</P></BODY></HTML> Tue, 27 Mar 2012 13:18:18 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/preventing-clone-with-mcf5441x/m-p/169628#M6167 gachen 2012-03-27T13:18:18Z