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FSBL DDR4 timings

userid0

Hi,

I am currently trying to prepare a custom PMU firmware and FSBL. What would be extremely helpful are the DDR4 memory timings.

Is there a way to obtain these?

-- Alex

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    I noticed that the Micron part # MT53B512M32D2NP-062 is listed as a 1600 (800MHz clk) part, yet the settings in the BSP are for 1066 (533 MHz).  I want to know if the setting can be changed to 1600 for better performance and if the board layout can handle it. If so, then what are the settings for the other timing parameters for the memory controller.  Micron will not release the datasheet for the part w/o an NDA at this time so it's not easy find starting points.     

    Have you guys tested the part at the higher speed ?  I realize it draws more power, produces more heat, and the timings are tighter and it may not work at that speed for any of those reasons.   But, in some applications it woudl be nice to have the memory operate at higher speeds if it works.  So if you tested it and it worked, could you give the other timing parameters for the 1600 speed setting.

    Thanks

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  • 0

    I noticed that the Micron part # MT53B512M32D2NP-062 is listed as a 1600 (800MHz clk) part, yet the settings in the BSP are for 1066 (533 MHz).  I want to know if the setting can be changed to 1600 for better performance and if the board layout can handle it. If so, then what are the settings for the other timing parameters for the memory controller.  Micron will not release the datasheet for the part w/o an NDA at this time so it's not easy find starting points.     

    Have you guys tested the part at the higher speed ?  I realize it draws more power, produces more heat, and the timings are tighter and it may not work at that speed for any of those reasons.   But, in some applications it woudl be nice to have the memory operate at higher speeds if it works.  So if you tested it and it worked, could you give the other timing parameters for the 1600 speed setting.

    Thanks

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