[Arm-netbook] HDMI High-Frequency Layout: Recommendations

[Luke Kenneth Casson Leighton]

On Tue, Aug 22, 2017 at 4:30 PM, Richard Wilbur
<richard.wilbur at gmail.com> wrote:

> Layer 3 always has ground separation from layer 1 in the intervening ground plane on layer 2 and likewise from layer 6 by layers 4 and 5.  So I'm not worried about those signals.

 ok great.

> Regarding the SATA power:  Is it an important part of providing a SATA interface?  If so, I would suggest not limiting our options on this card.  My understanding is that SATA is significantly more efficient for harddisk data interface than USB.

 SATA was on a very preliminary version of EOMA68.  it was cut a long time ago.

> Regarding SD0:  To what interface does it belong?  What is the maximum data rate on this line?

 MicroSD card reading (and other SD/MMC / SDIO compatible interfaces).
i *think* it's a max datarate of 50mhz....

l.