Re: Question about sh-sci on SH7723

morimoto.kuninori
2009-04-09T07:42:06Z

Dear Iwamatsu

> We set function to use in PFC and it is from IO-port
> and controls them.
>
> For example, we want to get RXD of SCIF0, setup PSELC and PTCR,
> and get value from PTDR.

Hmm....
Now I tried to watch PxDR behavior by JTAG.
Then, I can read data from PxDR if PxCR is "I/O".
But, I can not read data when PxCR is "Function".
It is always 0x00.
I think at least clock bit will change.

Do you know why ?