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some television sets are tuned to the magnetic field of the earth
so a set from europe will behave a bit odd in australia - apart from the difference in standards
same thing happens if you just put the thing upside down.
i'm afraid not
if dividing only the NRD line by 2, waveforms are totally messed up and nothing will work. Dividing all of the bus lines by two would require for instance two actions for each operation... if it ever works at all
i'm running a 66MHz (15ns period) bus which needs to interface to some devices. Some have rather slow requirements regarding adress setup and NRD/NWR to NCS setup times.
So: the falling edge of the NRD and NWR should be delayed for about one clock cycle, but the rising edge should stay right...
dpeending on ripple size a passive filter may be enough
on one design i had to implement a separate power supply with a lineair regulator to supply the video DAC
Re: TMDS signal SI ??
imho: not possible
switching should be done after a receiver and then transmit it back to TMDS-line again
if you do think of trying it, at least put all the traces through the same switch so your channels are still in sync. Impedance matching is highly critical indeed, of...
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