Forum Discussion
AGofs
Occasional Contributor
Occasional ContributorCycloneV :MSEL(4:0) and VCCPGM voltage
Good morning , I'm working with CycloneV GX at AS (x1 and x4) Standard configuration. I've read at CycloneV Handbook ,that MSEL(4:0) pins shall be connected to VCCPGM or GND directly. The Voltage ...
JonWay_altera
Frequent Contributor
Frequent ContributorHi @AGofs
If you refer to https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/dp/cyclone-v/pcg-01014.pdf
It states that: Connect these pins to either a 1.8V, 2.5V, 3.0V, or 3.3V power supply
Thus, it is ok for VCCPGM to connect to 2.5V.
HBhat2
Contributor
ContributorHi @JwChin ,
The above document mentions the possible values for VCCPGM, but it does not talk about in conjunction with ASx1, ASx4 configuration mode.
https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/cyclone-v/cv_5v2.pdf, page 244, Table 7-2: says that either 3.3V or 3.0V must be connected if Cyclone V platform supports ASx1, ASx4 mode of configuration.
This table in the handbook is the real cause for the confusion.
With Regards,
HPB
