What is the actual max display resolution for AM335x?

Yaniv Tal

The datasheet at http://www.ti.com/lit/ds/sprs717a/sprs717a.pdf states that the LCD Controller's max resolution is WXGA (1366x768) but the LCD Controller wiki here http://processors.wiki.ti.com/index.php/AM335x_LCD_Controller_Driver%27s_Guide says

LCD controller(LCDC) on AM335x is an updated version of LCDC that is found on OMAP-L138 SoC. It has following updates in comparison with OMAP-L138

Interrupt configuration and status registers are different.
Increased resolution of 2048*2048.
24 bits per pixel active TFT raster configuration.

Which of these is correct? What is the limiting factor? If indeed the LCD Controller can display 2048*2048 which is the same as that of the SGX530, that would be a huge difference!

Thanks,

Yaniv

over 13 years ago

0 PaulM over 13 years ago

TI__Mastermind 28055 points

Yaniv

Both are correct.

The LCDC module can support resolutions up to 2048x2048 with 24bpp. But at 60fps this would require ~755MB/s memory bandwidth and a pixel clock of around 327Mhz.

However, the AM335x family has currently been designed/spec’d to drive panels up to 1366x768@60fps, 24bpp.

Paul

0 Huang Luna over 13 years ago in reply to PaulM

Prodigy 155 points

Hi Paul,

Dose AM335x family has plan to modify the driver to support 1080p or max?

thank you.

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What is the actual max display resolution for AM335x?