How to pull out AGND | Cypress Semiconductor
How to pull out AGND
I need to make AGND available from outside a cy8c2714 (DIP-8 version) so I went ahead an placed a RefMUX, selected AGND as "Reference Select", routed the analoge column bus to port p0 with the output amplifier turned on.
Pin drive mode is "High Z Analog" and globals are set according to the attached image.
I was expecting Vdd/2 = ~2.5V on p0 but instead I see 5V - what am I doing wrong?