[vdr] Re: Shutdown after recording

[Lauri Tischler <lauri.tischler@efore.fi>]

Sergei Haller wrote:
> On Wed, 25 Sep 2002, Lauri Tischler (LT) wrote:
> 
> LT> http://www.maxim-ic.com/quick_view2.cfm/qv_pk/2757
> LT> on that page there is a link to full pdf
> 
> there are approx. 10 links to some sheets. which one?
> 
> LT>  > LT> contains info that 'current time has matched alarm time'.
> LT>  >
> LT>  > most  probably, this bit is only set to 1 _while_ the current time
> LT>  > matches alarm  time,  so  the bios of the motherboard only has to
> LT>  > look at this bit and  if it is 1, calls the power-up routines. That
> LT>  > is, this bit is useless during the general vdr-use.
> LT>
> LT> No, the spec says 'has matched', when current time reaches alarm time
> LT> AF bit is set.  Reading register C then clears it.
> 
> well, BIOS has to read that bit to be able to wake up the system.

BIOS reads nothing, when power is off, the BIOS is dead.
This is totally independent from BIOS, BIOS is
only used to enable/disable things in setup, like Wake-up etc..

In the beginning the system is dead, only the clockchip works...
Then the Current Time reaches Alarm Time and PWR pin of clockchip
says 'let there be light and there was light'
  - at the sametime AF-bit is set.
Read the spec :)