Are there any guidelines or App Notes to run a T1022 cpu at 600 or 800MHz core clock?

[Larry5335]

Also power numbers for thermal dissipation.

[ufedor · Accepted solution]

There is no such application note.

The following requirement has to be fulfilled:

Frequency provided to the e5500 cluster after any dividers must always be greater than or equal to the platform frequency.

[scottwood]

Where did you get that requirement?  The documentation I have says that the e5500 cluster frequency must be "greater than half of the platform frequency".

[ufedor]

QorIQ T1042, T1022 Data Sheet, Rev. 2, Table 129. Processor, platform, and memory clocking specifications, Note 2.

[scottwood]

I was looking at the note above table 133 in section 4.1.5 of the same document.

[ufedor]

Response from the Applications Team:

"Note 2 in the Table 129 in section 4.1.2:

“...

Frequency provided to the e5500 cluster after any dividers must always be greater than or equal to the platform frequency.

...”

is correct.

Second note will be corrected in next release of document."