From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Mon, 09 Sep 2002 20:00:33 -0400 From: Dan Brennan Subject: Re: 8260 MCC Interrupt priority To: "Ing.Gianfranco Morandi" Cc: LinuxPPC Message-id: <3D7D3621.5C62AC56@optonline.net> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii References: <020c01c25820$89c23880$0700a8c0@pc005> Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: 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/