Other Parts Discussed in Thread: TIDM-TM4C129XSDRAM
The TM4C129X comes with strong suggestions for using SDRAM with and LCD and the EPI.
What features are required for achieving speeds necessary to drive a 800x480 color LCD? This LCD controller uses one byte to define pixels. It will need bytes at a rate half the pixel clock. Suppose the pixel clock is 30MHz, the LCD controller reads bytes at 15MHz.
Access time does not seem to matter since the EPI only runs at 60MHz. The max access time at those speeds is 17ns; slower than most SDRAM specs I see.
16 bit data vs 8 bit data is obviously twice the speed, but the EPI bus only has 31 signals, so there seems to be limits on how many data and address lines you get.
I have been told "the buffer access is limited the SDRAM burst mode is needed to provide enough data quick enough". Does Tivaware automatically make use of SDRAM burst, or is special configuration necessary? The TIvaWare Users guide only discusses burst in relation to Host Bus 16 mode.
