Kinetis MicrocontrollersのトピックRe: LCDC Controller with DDR

LCDC Controller with DDR

kaipaulus — Tue, 13 Nov 2012 13:02:46 GMT

I will to use the DMA to transfer data from DDR Controller directly to the LCDC Controller with the DMA engine. For the first calculation i need the Peak transfer rate for this transfer. In the user manual from K70 i find only the transfer rate for SRAM to Peripherial Device, not for Peripheral- to Peripheral-Device.

Is the DMA to be apple to solve this transfer? And what's about the max. Transfer Rate?

Re: LCDC Controller with DDR

apanecatl — Tue, 13 Nov 2012 16:34:11 GMT

Hi Kai, the DMA can perform the transfer from the DDR controller to the LCDC, it counts as a 32b internal bus to internal SRAM memory transfer so you can use the following transfer rate table:

66.7 MHz, 32b 66.7

83.3 MHz, 32b 83.3

100.0 MHz, 32b 100.0

133.3 MHz, 32b 133.3

150.0 MHz, 32b 150.0

Re: LCDC Controller with DDR

kaipaulus — Wed, 14 Nov 2012 06:40:41 GMT

Hi Pedro,

many thanks for the answer.