https://community.nxp.com/t5/i-MX-Processors/i-MX-8M-Mini-configure-DLL-off-mode-using-LPDDR4-memory/m-p/1275517#M173921 <P>i.MX8MMini supports the DLL-off mode for DDR4/DDR3 memories, not for LPDDR4. The <BR />DLL-off mode can be enabled by setting the bit 15 of the DDR controller's Master <BR />Register 0. For details, refer to the Section 9.2.3.1.2 of i.MX8MMini RM.</P> <P>Best Regards,<BR />Artur</P> Wed, 12 May 2021 09:34:13 GMT art 2021-05-12T09:34:13Z https://community.nxp.com/t5/i-MX-Processors/i-MX-8M-Mini-configure-DLL-off-mode-using-LPDDR4-memory/m-p/1271193#M173512 <P>Hi, we are implementing low power mode on our custom iMX8 Mini based hardware and I cannot find any application note about LPDDR4 DLL-off mode configuration to reduce memory clock as low as possible, e.g 125MHz. We did that successfully for iMX7 based hardware with DDR3 memory following reference manual but cannot find any details for iMX8.</P> Mon, 03 May 2021 08:26:57 GMT https://community.nxp.com/t5/i-MX-Processors/i-MX-8M-Mini-configure-DLL-off-mode-using-LPDDR4-memory/m-p/1271193#M173512 ladislav_piroha 2021-05-03T08:26:57Z https://community.nxp.com/t5/i-MX-Processors/i-MX-8M-Mini-configure-DLL-off-mode-using-LPDDR4-memory/m-p/1275517#M173921 <P>i.MX8MMini supports the DLL-off mode for DDR4/DDR3 memories, not for LPDDR4. The <BR />DLL-off mode can be enabled by setting the bit 15 of the DDR controller's Master <BR />Register 0. For details, refer to the Section 9.2.3.1.2 of i.MX8MMini RM.</P> <P>Best Regards,<BR />Artur</P> Wed, 12 May 2021 09:34:13 GMT https://community.nxp.com/t5/i-MX-Processors/i-MX-8M-Mini-configure-DLL-off-mode-using-LPDDR4-memory/m-p/1275517#M173921 art 2021-05-12T09:34:13Z