How to determine which architecture?

I have a Satellite STB which I can ssh into and it is running some flavour of Linux.

How can I establish its architecture and find out if it capable of running FreeBSD?
My STB reports
system type:  BCM7325B0 STB platform
cpu model:     Brcm4380 V4.12 FPU v0.0

To me it looks like a no no as far as trying to run FreeBSD on this device...