After a little research, i finally arrive to the conclusion is hard to
implement my model using RCM4XXX cores. I need , as i mentioned, 5
ports. Then main problem i find is cannot build a unique hardware to
support severals cores of the 4000 series.

I post in the files section a detail of serial ports available in that
series.As you will in all the cores one of the needed serial ports are
used by a auxiliary device. I understand that design, have a lot of
sense, and i understand that requirements are not some you can find
frequently. :)

But the true is the hardware my application need for manage cores of
3000 series is simplest than the needed to the same application using
cores 4000.

Then, i can think in that hardware if see the REAL advantages in using
core 4000. Can anyone please anyone using a 4000 processor comment
wich advantages see over using a 3000 processor?

My app just talk to 5 device trough serial port, one is a pc (can
switch to ethernet also) and 4 serial specific using specific protocol
for each of them, all with costates.So my app talk to port 1, while
waiting the response talk to port 2, etc.

A main loop reports to the PC with shared variables, for that reason i
use costate (that works well in my application, no complains).
Implementing a real tasker need to implement several semaphores and
need a lot of debug time to get it confident.

Well, sorry for the long post and thanks in advance for your responses.

Donald.

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