LCDC Controller with DDR

[kaipaulus]

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?

[apanecatl]

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

[kaipaulus]

Hi Pedro,

many thanks for the answer.