SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
Step | Register/ Bit Field / Programming Model | Value |
---|---|---|
Enable ZQ callibration for CS0. | EMIF_SDRAM_OUTPUT_IMPEDANCE_CALIBRATION_CONFIG[30] ZQ_CS0EN | 0x1 |
Define the interval (number of refresh periods) between ZQCS commands. | EMIF_SDRAM_OUTPUT_IMPEDANCE_CALIBRATION_CONFIG[15:0] ZQ_REFINTERVAL | 0x- |
Define the number of ZQCS intervals that build the ZQCL duration. | EMIF_SDRAM_OUTPUT_IMPEDANCE_CALIBRATION_CONFIG[17:16] ZQ_ZQCL_MULT | 0x- |
Enable the issuing of ZQ-Long Command on Self-Refresh, Active Power-Down, and Precharge Power-Down exit. | EMIF_SDRAM_OUTPUT_IMPEDANCE_CALIBRATION_CONFIG[28] ZQ_SFEXITEN | 0x1 |