Maxim/Dallas DS80C400 or Freescale MC9S12NE64

[Sylvain Munaut]

Hi,

Any one has experience with any of theses ?
[Maxim/Dallas DS80C400] or [Freescale MC9S12NE64]


They are both small uC with integrated ethernet.


The pro/con I see:

[Maxim/Dallas DS80C400]
Pros:
- Powerfull ROM embedded that has full TCP/IP stack
- Can TFTP boot from network (so No need of programmation tool)

Cons:
- Need external ethernet PHY
- Need external SRAM (to download program)
- (so take up more space ...)
- Runs at 75Mhz max but has 4clock/machine cycles.

[Freescale MC9S12NE64]
Pros:
- Runs at 25Mhz but 1clock/machine cycles (not sure but it seems)
- Has integrated ethernet PHY
- No need of SRAM if the application don't require it ...

Cons:
- Flash based with no firmware, so need special programmation tools
- The TCP/IP stack seems weird.



The application is a small smart card terminal with really low ethernet traffic and
pretty simple behavior.


Sylvain