ColdFire/68K Microcontrollers and Processors中的主题 Re: MCF52235 Family https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF52235-Family/m-p/566299#M12914 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>Yes, you can disable the internal PHY and connect an external PHY. As the manual mentioned when using an external PHY, some pins that are multiplexed with the MII are no longer usable. datasheet shows the signals used for an external interface.</P></BODY></HTML> Thu, 14 Jul 2016 09:14:15 GMT miduo 2016-07-14T09:14:15Z MCF52235 Family https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF52235-Family/m-p/566298#M12913 <HTML><HEAD></HEAD><BODY><P>MCF52235 datasheet note 3 on page 21 stated that "The use of an external PHY limits ADC, interrupt, and QSPI functionality. It also disables the UART0/1 and timer pins." I plan to use the external PHY on my design, I would like to make sure those pins/bits within those limited functions which are NOT mapped to the Ethernet internal signals(FEC_*) still available as user's I/Os?</P><P>Thanks!</P><P>Michael</P></BODY></HTML> Tue, 12 Jul 2016 21:32:56 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF52235-Family/m-p/566298#M12913 michaelkwan 2016-07-12T21:32:56Z Re: MCF52235 Family https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF52235-Family/m-p/566299#M12914 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>Yes, you can disable the internal PHY and connect an external PHY. As the manual mentioned when using an external PHY, some pins that are multiplexed with the MII are no longer usable. datasheet shows the signals used for an external interface.</P></BODY></HTML> Thu, 14 Jul 2016 09:14:15 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MCF52235-Family/m-p/566299#M12914 miduo 2016-07-14T09:14:15Z