[Arm-netbook] Re easy pc-tv out

[lkcl luke]

On Fri, Mar 23, 2012 at 9:27 PM, hugo meneses <hugalactico at hotmail.com> wrote:
> Hi
>
> what i means " conect to standar tvs" is use composite video, 1 cable for
> video and 2 for audio, that is because only LCD and plasma tvs have hdmi/vga
> and these are not the most popular in the developing countries

 mrhhmmm... ah well.  hm.

 ok - does an extra $1.50 or so make any difference to the price, as
compared to future upgradeability?

 the reason i ask is: EOMA-68 has 24-pin RGB/TTL.  it does *not* have
"analog tv", "composite video" or whatever.

 however, on the A10 EOMA-68 CPU card, we have an expansion header.
the plan is to put the TV-out signals on it.  datasheet "basics":

   Multi-standard support for NTSC-M, NTSCJAPAN,PAL (B, D, G, H, I, M,
N,Combination N)@27M clock
   Support 480P, 576P at 54M clock
   Support 720P,1080i at 74.25M clock
   Support 1080P at 148.5M clock
   Video input data port supports: CCIR-656 4:2:2 8-bit parallel input format
   Video output data port supports: 4 X12-bit DAC data output,
Composite(CVBS) and Component S-video(Y/C)
   or Component YUV or RGB
   Analog signal output copyright protection
   Programmable 4 X DAC data path
   Plug status auto detecting

so it's 4 wires.

anyway, the point is: you have a choice.

* EITHER you can have a $1.50 IC converting 24-pin RGB-TTL to
Composite Video (on the I/O Board) and the users will be able to
replace the A10 EOMA-68 CPU card easily in the future with something
faster or cheaper (or perhaps both).

* OR you can have a "factory-installed" version of the A10 EOMA-68 CPU
card which can NEVER be easily unplugged (by average users).

you have to choose one :)

l.