Hi
Customer want to configure 4x fresh frequency of LPDDR4, how to configure this through Jacinto7_DDRSS_RegConfigTool-AE-B50036-M?
Regards
Zekun
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Hi,
The refresh rate is controlled through the tREFI parameters (DRAM Timing section of the tool).
As an example, see the table below:
Refresh Rate | tREFIab |
1x | 3900 ns |
2x | 1950 ns |
4x | 975 ns |
Please note that tRASmax is dependent on the refresh rate, so it should be updated when modifying tREFI.
Regards,
Kevin