Chip Identification Register

[greengene]

i'm looking at sim.ccm.cir and here's what i'm seeing:

on MCF5282, = 0x2001, which is part#=16 and rev#=1
on MCF5270, = 0x0B81, which is part#=46 and rev#=1

is that right?

just for grins, does anyone have the values for other parts?

[greengene]

duh, MCF5282 part# is 32 not 16. um, hex not octal.

[rnixon]

I haven't used these before, but have you verified its ok to use those registers from the Freescale manual? Sometimes they call them "factory registers" and the results are not always guaranteed.

[greengene]

larry referenced using them in a thread from 2008 so i think they are ok to use.

[lgitlitz]

This chip identification register is OK to use. It is listed in the Chip Configuration Module section of the Freescale reference manual. I would not use the last 5 bits of this register as it may change if Freescale does a new mask for the processor. Here are the values I use in a BDM device we created for production:
MCF5270 = 0xB80
MCF5234 = 0xB40
MCF5282 = 0x2000
MCF5272 = 0x301D
MCF5213 = 0x10C0
MCF52236 = 0x1280
MCF5474 = 0x0801301d
MCF5484 = 0x0800d01d