I want get 1.8v-LVCMOS and 3.3v-LVCMOS at the same time .I wander if i give 1.8v to DVDD,then i give 1.8v and 3.3v to different VDD_Yx_Yy. Does this setting can realize?
or the DVDD MUST ≥ VDD_Yx_Yy?
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
I want get 1.8v-LVCMOS and 3.3v-LVCMOS at the same time .I wander if i give 1.8v to DVDD,then i give 1.8v and 3.3v to different VDD_Yx_Yy. Does this setting can realize?
or the DVDD MUST ≥ VDD_Yx_Yy?
"RESETN/PWR: In Pin mode this pin controls device core and I/O supply voltage
setting. 0 = 1.8 V, 1 = 2.5/3.3 V for the device core and I/O power
supply voltage. In pin mode, it is not possible to mix and match the
supplies. All supplies should either be 1.8 V or 2.5/3.3 V."
So do not use pin mode.
Use register bits SUPPLY_CHx to define power supply for output channels.