Display resolution in itself is not a problem for i.MX28 / 23. LCDIF Horizontal and Vertical Valid Data
Count Register (HW_LCDIF_TRANSFER_COUNT) contains 16 bit fields for vertical and horizontal
counters. So, 1024 x 128 may be supported.
Another point what is display interface ? This should be analyzed first.
The i.MX28 manual says about display resolutions up to 800 x 480.
This restriction mainly concerns performance issue : the i.MX28 is able to drive LCD panel up
to 800x480 resolution at 60Hz.
Since both pixel pipeline and LCDIF do not impose any hard maximum limit to
800x480, in theory higher resolution LCD panel is allowed.
However, we do not recommend driving any panel with higher resolution than
800x480 due to limited internal bus bandwidth. It is possible to run at a higher
resolution at lower frame rate (800x600 @ 48Hz is the same number of pixels/sec
as 800x480 @ 60Hz).
This is correct for DOTCLK mode. As for System mode, internal bus bandwidth is
not the problem.
Have a great day,
Yuri
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