[Arm-netbook] AMD APU's in EOMA and ARM SOC's with PCIe

lkcl luke luke.leighton at gmail.com
Sun Jan 22 18:53:10 GMT 2012


On Sun, Jan 22, 2012 at 6:43 PM, Dominique Dumont <domi.dumont at free.fr> wrote:
> Le Sunday 22 January 2012 19:06:15, lkcl luke a écrit :
>>  SPI is 5 pins, that's manageable.  HD audio is 9??? ok, 8 if you
>> exclude the GND.  that's... a hell of a lot to dedicate to something
>> as "stoopid" as audio.
>
> Can't the audio be interlaced in the HDMI output ?
>
> If HDMI audio is not possible, how about a spdif output instead of all the
> analog lines ? (and you wouldn't have to worry about audible noise on the
> analog audio output)

 on the front edge (user-facing), i'd say yes.

 you have to think: is it just going to get routed through the device
and out the other side, in which case you've just wasted N lines, or
is it going to some built-in speakers, in which case you _still_ don't
want to put it on the connector because a simple USB audio driver IC
or even an STM32F with a Class D (PWM) amplifier on the back would do
the same job.

 l.
> All the best
>
> Dominique
> --
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>
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