SPRUJ79 November 2024 F29H850TU , F29H859TU-Q1
If the system PLL is programmed to provide a SYSCLK frequency > 100MHz, then configure the EMIF1CLKDIV field in the PERSYSCLKDIVSEL register to make EM1CLK = SYSCLK/2 (default configuration). Before doing this, the SDRAM must be placed in self-refresh mode by setting the SR bit in the SDRAM configuration register. Once the EM1CLK frequency has been configured, remove the SDRAM from self-refresh by clearing the SR bit in SDRAM_CR.
Field | Value | Purpose |
---|---|---|
SR | 1 then 0 | To place the EMIF into the self-refresh state |