Hi,

I'm working on a project where SPI at approx. 1.5 Mbit/s is needed to interface with some device.

Currently I use the SPI port of an AT89S8252; since I need a bit more horsepower I plan to move to a Dallas or similar chip (1 or 4 cycles/instruction). However these chips don't get an built-in SPI port.

I browsed several constructors websites & datasheets but didn't find a suitable part.

So my questions are :

- anyone knows a 8051 compatible fast core with SPI ?

- otherwise any idea of an external UART capable of SPI ?

Bitbanging a SPI is not a useful solution at this bitrate. Triscend E5 seems OK but not a drop-in replacement (may be considered if no other solution, though).


Thx,
romuald