Hey Carlos,
I had the same problem for 8 years with a Philips Controller. Intel is running and my Philips not.
So i searched for the problem and I inserted 5 NOPs at the start. at adress 0000.
Now the Controller works fine.
I think it is a fault on the Crystal for stable oscillation.
And the next expirience give me the result,
the core starts program execution and the I/O leaves the reset later.

But never I had found the problem on newer chips.(I think the chip is in my toolbox...)

Sascha