next-generation (now) MPU discussion / Backup battery on PMU only

joerg at joerg at
Thu Apr 24 13:22:34 CEST 2008

Am Do  24. April 2008 schrieb Andy Green:
> Somebody in the thread at some point said:
>    I don't think we
> need this since we only want RTC to stay up and the RTC can be in PMU.
> If it is true we need to keep RTC in PCF50633 and keep the battery on
> there only.

RTC on MPU is much better, for you might want realtime events/tasks to 
triggered/done by MPU. It's an annoyance to have the RTC in PMU just because 
there happen to be a RTC there and incidentally also a backup battery. WHAT 
FOR do we need a RTC on PMU?? It would be even less weird to use the one of 
6400 and stay close to IndustryStandardArchitecture(ISA=PC=IBM)...

More on this later maybe...


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