Am 15.06.2014 um 15:05 schrieb Dorian Meid <[email protected]>
> I want to use a LCD panel with a 8080-compatible 16-bit interface. The A20 
> datasheet claimes that the SoC has a 8080 interface and also there are 
> registers for configuring the LCD port in an 8080 mode.
> In fact the register at 0x060 bit 31:29 give three 16-bit modes. 16bit mode1, 
> 16bit mode2 and 16bit mode3. Does anybody know what the differences between 
> these modes is?
> And more important: the pin descriptions for the LCD port (I want to use LCD0 
> on port D) are only documented for the standard TTL and LVDS interfaces.
> The 8080 interface uses in 16bit mode only 16 bidirectional data lines and 
> additionally a few control lines. The control lines are:
> - Data/Command select: to distinguish whether the written byte is display 
> data or to control the display controller itself
> - Write: to indicate that a byte should be sent to the display controller
> - Read: to indicate that a byte should be read from the display controller
> - Chip select: like an enable so you could drive more than one display one 
> one controller
> - Reset: for resetting the display controller
> 
> I could handle the chip select and reset data myself, but I need to know 
> where Data/Command, the write and the read pins are located. Unfortunately 
> this information is not given in the datasheet of the A20 or A10.
> Does anybody have that information or did successfully use a 8080 display or 
> know where I can get that information for the A20?
> 
> Thank you



No answer so far. Is there really nobody who has any information about this?


Dorian Meid



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