Number of PLLs in Max 10 10M02 device

[Dennis_Nedry]

Hello, I am using the 10M02SCE144C8G device and I was surprised to find this compilation message when I added a second PLL to my project:

Error (176394): Can't fit 2 PLLs in the device -- only 1 PLLs are available
Info (176395): Location PLL_2 cannot be used due to package or device migration constraints

Referring to the Max 10 Device Overview:

https://www.intel.com/content/www/us/en/docs/programmable/683658/current/device-maximum-resources.html

The table shows that there are 2 PLLs available in this device.  Any idea why I am apparently only able to use 1 PLL in my project?

[sstrell]

How are you configuring and connecting the PLLs?  What other IP might you be using that may be making use of one of them?

[Dennis_Nedry]

I created a new test project containing only 2 PLLs (using ALTPLL) and 4 I/O pins connected:

I attached the test project.  It still gives the error.  In fact, when I created the test project, I noticed this information listed:

So I believe that the table I referenced earlier shows ALL 10M02 series devices, that there is at least one of them that has 2 PLLs but mine only has 1?  I think this kind of answered my own question.

For my actual project, it is OK; I only actually required 1 PLL, but I could have probably benefited by having a second one.  Is there a good reference online somewhere that lists this information device-specific?  Or is the Quartus software's new project wizard the best reference?

[FvM · Accepted solution]

Hi,
curiously MAX10 device overview seems not mention in any place that MAX10S devices (single supply) have only 1 PLL. Neither device handbook explicitely does, it refers to pinout files. Simple way to get the info, open Quartus device selection.

Regards
Frank