ColdFire/68K Microcontrollers and ProcessorsのトピックMKV56F512 https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MKV56F512/m-p/870721#M13669 <HTML><HEAD></HEAD><BODY><P>Q1: Can the VDDA be powered before VDD?</P><P>Q2: Can the VREFH voltage be powered before VDD and VDDA?</P><P></P><P>thanks</P></BODY></HTML> Tue, 29 Jan 2019 15:03:36 GMT jian3_wang 2019-01-29T15:03:36Z MKV56F512 https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MKV56F512/m-p/870721#M13669 <HTML><HEAD></HEAD><BODY><P>Q1: Can the VDDA be powered before VDD?</P><P>Q2: Can the VREFH voltage be powered before VDD and VDDA?</P><P></P><P>thanks</P></BODY></HTML> Tue, 29 Jan 2019 15:03:36 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MKV56F512/m-p/870721#M13669 jian3_wang 2019-01-29T15:03:36Z Re: MKV56F512 https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MKV56F512/m-p/870722#M13670 <HTML><HEAD></HEAD><BODY><P>MKV56F512 is a Kinetis part. This forum is for Coldfire parts. You should MOVE the question to that Forum (there's an option for this if you're the Author of a post, but the addition of my post might interfere with that).</P><P></P><P>The Reference Manual says "V REFH must never exceed V DDA".</P><P></P><P>You should also read "40.7.1.1 Analog supply pins". It is quite clear on the matter.</P><P></P><P>Tom</P></BODY></HTML> Wed, 30 Jan 2019 04:56:21 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MKV56F512/m-p/870722#M13670 TomE 2019-01-30T04:56:21Z Re: MKV56F512 https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MKV56F512/m-p/870723#M13671 <HTML><HEAD></HEAD><BODY><P>Thanks for your information.</P></BODY></HTML> Wed, 30 Jan 2019 07:29:14 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/MKV56F512/m-p/870723#M13671 jian3_wang 2019-01-30T07:29:14Z