Alif Semiconductor /AE512F80F5582LS_CM55_HP_View /SDMMC /SDMMC_PRESET_DS_R

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Interpret as SDMMC_PRESET_DS_R

15 1211 87 43 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0FREQ_SEL_VAL0 (Val_0x0)CLK_GEN_SEL_VAL 0 (Val_0x0)DRV_SEL_VAL

DRV_SEL_VAL=Val_0x0, CLK_GEN_SEL_VAL=Val_0x0

Description

Register with Preset Value for Default Speed

Fields

FREQ_SEL_VAL

SD_CLK Frequency Select Value. 10-bit preset value to be set in the SDMMC_CLK_CTRL_R[FREQ_SEL] bit field described by a Host System.

CLK_GEN_SEL_VAL

Clock Generator Select Value. This bit is effective when the Host Controller supports programmable clock generator.

0 (Val_0x0): Host Controller Ver2.0 compatible clock generator

1 (Val_0x1): Programmable clock generator

DRV_SEL_VAL

Driver Strength Select Value. These bits indicate the Driver strength value supported by 1.8 V signaling bus speed modes. This field is meaningless for the Default speed mode as it uses 3.3 V signaling.

0 (Val_0x0): Driver Type B is selected

1 (Val_0x1): Driver Type A is selected

2 (Val_0x2): Driver Type C is selected

3 (Val_0x3): Driver Type D is selected

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