8260 MCC Interrupt priority

[Dan Brennan]

Which silicon version are you using, e.g., B.3? Read the errata for the
part. Activity on FCC1 can wreak havoc on a very busy MCC.

"Ing.Gianfranco Morandi" wrote:
>
> Hi to everybody,
>
> I'm currently working on a custom board derived from EST8260. We are trying
> to implement a device driver of MCC to control the interface with a
> synchrounous PCM.
> I have noted that when there is an interrupt on SCC1 (or FCCx) the latency
> time of MCC interrupt increase. Now I'm really concerned about the
> possibility to loose some frame due to an heavy use of such interfaces.
>
> Do anybody knows if there is the possibility to avoid such behaviour (maybe
> allowing an interrupt casting with the MCC ISR)?
>
> Many thanks
>
> Gianfranco Morandi
>

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/