Graphics accelerator chip for my LCD displays

Rayman

I was just looking at the Microchip (sorry) webinar on LCD interfacing:
http://techtrain.microchip.com/webseminars/documents/GrLCD_p2_102507.pdf
They·said the the regular PIC chips aren't powerful enough to drive an RGB LCD (like the 3.5" and 4.3" ones I sell)...

So, they bring up this graphics accelerator chip:· SSD1906
I found it for sale for $13 here:
http://www.microchipdirect.com/ProductSearch.aspx?Keywords=IC00376

I might have to check these out sometime because that would allow 16-bit color graphics
and free up Propeller cogs and memory...

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Post Edited (Rayman) : 7/15/2010 6:19:25 PM GMT

AntoineDoinel

Very interesting find, even the price is good considering that it has 256KB embedded memory.

The datasheets mention "8-bit processor support with glue logic" in the datasheet, but I don't understand exactly what they mean with "glue".
Mode "Generic #2" will use A0 for byte selection, still is not clear to me if D8..D15 can be left unconnected.

I'm also wondering if it could be used for VGA generation (limited to whole pixel per clock output modes going to resistor DACs), by deriving hsync and vsync from LLINE and LFRAME, or generating them in sync with propeller.

Do you think it could be feasible?

Rayman

It seems plausible that it could generate VGA, but you'd think it'd be on the web somewhere if somebody did do that.· Maybe we should do a web search...

I'm pretty sure it can do an 8-bit interface, but I haven't even read the datasheet...

I'm just contemplating it right now...· But, I am liking the idea more and more...


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My Prop Apps:· http://www.rayslogic.com/propeller/Programming/Programming.htm

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Ale

It cannot do 8 bit without "help" either a latch or two because it can only use a 16 bit interface.

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