>I have to make/design a RS232 to the JTAG module on the C8051F040 �C
>interface. But I can't seem to find any documentation on how this is done.

Take a look here: http://www.actel.com/documents/97s05d15.pdf

Just from the pin descriptions, it sounds similar to  SPI. 

Hi

I have to make/design a RS232 to the JTAG module on the C8051F040 �C
interface. But I can't seem to find any documentation on how this is done.
Can anyone help me?

-- 

Hilsen / Best Regards

Mikkel Lund

www.control.auc.dk/~mmlu03