Espressif ESP32 Technical Reference Manual page 539

20 eFuse Controller
31
0 0 0 0 0 0 0
EFUSE_SDIO_FORCE This field programs the value of SDIO_TIEH. (R/W)
EFUSE_SDIO_TIEH This field programs the value of SDIO_TIEH. (R/W)
EFUSE_XPD_SDIO This field programs the value of XPD_SDIO_REG. (R/W)
ESFUSE_CK8M_FREQ This field programs the frequency of RC_FAST_CLK. (R/W)
31 28 27
0 0 0 0 0 0 0
EFUSE_FLASH_CRYPT_CONFIG This field programs the value of flash_crypt_config. (R/W)
EFUSE_DIG_VOL_L6 This field stores the difference between the digital regulator voltage at level 6
and 1.2 V. (R/W)
EFUSE_VOL_LEVEL_HP_INV These bits store the voltage level for CPU to run at 240 MHz, or for
flash/PSRAM to run at 80 MHz. 0x0: level 7; 0x1: level 6; 0x2: level 5; 0x3: level 4. (R/W)
EFUSE_SPI_PAD_CONFIG_CS0 This field programs the value of SPI_pad_config_cs0. (R/W)
EFUSE_SPI_PAD_CONFIG_D This field programs the value of SPI_pad_config_d. (R/W)
EFUSE_SPI_PAD_CONFIG_Q This field programs the value of SPI_pad_config_q. (R/W)
EFUSE_SPI_PAD_CONFIG_CLK This field programs the value of SPI_pad_config_clk. (R/W)
Espressif Systems
Register 20.12. EFUSE_BLK0_WDATA4_REG (0x02c)
17
0 0 0 0 0 0 0 0
Register 20.13. EFUSE_BLK0_WDATA5_REG (0x030)
24 23 22 21 20 19
0 0 0 0 0 0 0 0
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16 15 14 13
0 0 0 0 0 0 0 0
15 14 10 9
0 0 0 0 0 0 0 0
539
8 7
0 0 0 0 0 0 0 0
5 4
0 0 0 0 0 0 0 0
ESP32 TRM (Version 5.2)
0
0
Reset
0
0 Reset