topic MCF5223x PWOR function ? in ColdFire/68K Microcontrollers and Processors https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5223x-PWOR-function/m-p/156700#M4632 <HTML><HEAD></HEAD><BODY><P>The PWOR bits set pins to "wired-OR".</P><P>There is no further explanation in the RM.</P><P>&nbsp;</P><P>Does anyone know what it does ?</P><P>Does it disable the low side driver transistor of the pin ?</P></BODY></HTML> Thu, 26 Feb 2009 21:28:17 GMT MrBean 2009-02-26T21:28:17Z MCF5223x PWOR function ? https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5223x-PWOR-function/m-p/156700#M4632 <HTML><HEAD></HEAD><BODY><P>The PWOR bits set pins to "wired-OR".</P><P>There is no further explanation in the RM.</P><P>&nbsp;</P><P>Does anyone know what it does ?</P><P>Does it disable the low side driver transistor of the pin ?</P></BODY></HTML> Thu, 26 Feb 2009 21:28:17 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5223x-PWOR-function/m-p/156700#M4632 MrBean 2009-02-26T21:28:17Z Re: MCF5223x PWOR function ? https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5223x-PWOR-function/m-p/156701#M4633 <HTML><HEAD></HEAD><BODY><P>Hi Mr Bean</P><P>&nbsp;</P><P>I haven't used this function but I believe it is effectively setting open drain output so that several outputs can be connected together. Using a pull-up, any output driving '0' 'wins'.</P><P>&nbsp;</P><P>Wired-OR is a little confusing because sometimes it is also called Wire-AND. See the following: <A href="http://zone.ni.com/devzone/cda/tut/p/id/3544" rel="nofollow" target="_blank">Wired-OR</A></P><P>&nbsp;</P><P>Regards</P><P>&nbsp;</P><P>Mark</P><P>&nbsp;</P><P><A href="http://www.uTasker.com" rel="nofollow" target="_blank">www.uTasker.com</A></P></BODY></HTML> Fri, 27 Feb 2009 06:42:45 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5223x-PWOR-function/m-p/156701#M4633 mjbcswitzerland 2009-02-27T06:42:45Z Re: MCF5223x PWOR function ? https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5223x-PWOR-function/m-p/156702#M4634 <HTML><HEAD></HEAD><BODY>Yes, I think it is what is normally called open-drain output. I haven't tried it though.</BODY></HTML> Fri, 27 Feb 2009 21:02:34 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF5223x-PWOR-function/m-p/156702#M4634 admin 2009-02-27T21:02:34Z