Re: Question about sh-sci on SH7723

Nobuhiro Iwamatsu
2009-04-09T05:53:10Z

morimoto.kuninori@renesas.com wrote:
> Dear Iwamatsu
>
>>> I think that this is coding miss.
>>> If you check implemenation of other SH CPU's(e.g. SH7722),
>>> you can understand that other CPU checked RXD bit.
>> If this is a just "coding miss", I can understand !!
>> Thank you
>
> Oops.
> But Can we really read RXD status from IO port ?
> Because when we use SCIF/SCIFA,
> function modules is selected in PFC.
> it is not IO port.
>
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.

OK?

Best regards,
Nobuhiro