RE: AW: 52235/52230 problem

John do you have an updated roadmap for the coldfire family? How soon
should we expect a V4 core with a display driver onboard? 

-----Original Message-----
From: [email protected] [mailto:[email protected]]
On Behalf Of John Bodnar
Sent: Friday, January 25, 2008 10:26 AM
To: Brian McCombs
Subject: Re: AW: [ColdFire] 52235/52230 problem


Hi folks,

Mark Butcher wrote:
> I have used 2 layers with NE64 (almost identical footprint and LAN 
> interface) so I expect that it is possible also with the M52230. 4 
> layers will of course be better but I wouldn't expect extreme changes.

Mark makes an important point here. We intentionally matched the 
MCF5223x pin out to that of the 9S12NE64 as closely as possible. The 
VDDs and VSSs are in the same place, as are EXTAL and XTAL, RST_IN, the 
Ethernet PHY, and basic I/O functionality like the UARTs, QSPI, and 
timers. The 5223x and the NE64 have completely different BDM interfaces,

so those could not be matched exactly, but, otherwise, the plan was to 
allow as much re-use of existing NE64 PCB designs as possible.

You'll see on forthcoming ColdFire designs that we're trying to make our

pin outs more conducive to simpler board designs. I can't promise any 
major breakthroughs but hopefully enough care and forethought to make 
everyone's life a little easier.

Best regards,

John Bodnar
Systems Engineer
Microcontroller Solutions Group
Freescale Semiconductor, Inc.

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