.. code-block:: none $ ./efuse_table_gen.py -t {IDF_TARGET_PATH_NAME} {IDF_TARGET_PATH_NAME}/esp_efuse_table.csv --info Max number of bits in BLK 256 Sorted efuse table: # field_name efuse_block bit_start bit_count 1 WR_DIS EFUSE_BLK0 0 32 2 WR_DIS.RD_DIS EFUSE_BLK0 0 1 3 WR_DIS.KM_RND_SWITCH_CYCLE EFUSE_BLK0 1 1 4 WR_DIS.KM_DISABLE_DEPLOY_MODE EFUSE_BLK0 1 1 5 WR_DIS.KM_DEPLOY_ONLY_ONCE EFUSE_BLK0 1 1 6 WR_DIS.FORCE_USE_KEY_MANAGER_KEY EFUSE_BLK0 1 1 7 WR_DIS.FORCE_DISABLE_SW_INIT_KEY EFUSE_BLK0 1 1 8 WR_DIS.KM_XTS_KEY_LENGTH_256 EFUSE_BLK0 1 1 9 WR_DIS.LOCK_KM_KEY EFUSE_BLK0 1 1 10 WR_DIS.DIS_USB_JTAG EFUSE_BLK0 2 1 11 WR_DIS.DIS_FORCE_DOWNLOAD EFUSE_BLK0 2 1 12 WR_DIS.SPI_DOWNLOAD_MSPI_DIS EFUSE_BLK0 2 1 13 WR_DIS.DIS_TWAI EFUSE_BLK0 2 1 14 WR_DIS.JTAG_SEL_ENABLE EFUSE_BLK0 2 1 15 WR_DIS.DIS_PAD_JTAG EFUSE_BLK0 2 1 16 WR_DIS.DIS_DOWNLOAD_MANUAL_ENCRYPT EFUSE_BLK0 2 1 17 WR_DIS.WDT_DELAY_SEL EFUSE_BLK0 2 1 18 WR_DIS.SECURE_BOOT_DISABLE_FAST_WAKE EFUSE_BLK0 2 1 19 WR_DIS.DIS_WDT EFUSE_BLK0 2 1 20 WR_DIS.DIS_SWD EFUSE_BLK0 2 1 21 WR_DIS.PMU_FLASH_POWER_SEL EFUSE_BLK0 2 1 22 WR_DIS.PMU_FLASH_POWER_SEL_EN EFUSE_BLK0 2 1 23 WR_DIS.POWER_GLITCH_EN EFUSE_BLK0 2 1 24 WR_DIS.PVT_0_GLITCH_EN EFUSE_BLK0 3 1 25 WR_DIS.PVT_0_GLITCH_MODE EFUSE_BLK0 3 1 26 WR_DIS.PVT_1_GLITCH_EN EFUSE_BLK0 3 1 27 WR_DIS.PVT_1_GLITCH_MODE EFUSE_BLK0 3 1 28 WR_DIS.SPI_BOOT_CRYPT_CNT EFUSE_BLK0 4 1 29 WR_DIS.SECURE_BOOT_KEY_REVOKE0 EFUSE_BLK0 5 1 30 WR_DIS.SECURE_BOOT_KEY_REVOKE1 EFUSE_BLK0 6 1 31 WR_DIS.SECURE_BOOT_KEY_REVOKE2 EFUSE_BLK0 7 1 32 WR_DIS.KEY_PURPOSE_0 EFUSE_BLK0 8 1 33 WR_DIS.KEY_PURPOSE_1 EFUSE_BLK0 9 1 34 WR_DIS.KEY_PURPOSE_2 EFUSE_BLK0 10 1 35 WR_DIS.KEY_PURPOSE_3 EFUSE_BLK0 11 1 36 WR_DIS.KEY_PURPOSE_4 EFUSE_BLK0 12 1 37 WR_DIS.DIS_SM_CRYPT EFUSE_BLK0 14 1 38 WR_DIS.ECC_FORCE_CONST_TIME EFUSE_BLK0 14 1 39 WR_DIS.ECDSA_DISABLE_SOFT_K EFUSE_BLK0 14 1 40 WR_DIS.SEC_DPA_LEVEL EFUSE_BLK0 14 1 41 WR_DIS.XTS_DPA_CLK_ENABLE EFUSE_BLK0 14 1 42 WR_DIS.XTS_DPA_PSEUDO_LEVEL EFUSE_BLK0 14 1 43 WR_DIS.RMA_NONCE_ENA EFUSE_BLK0 14 1 44 WR_DIS.RMA_CHIP_INFO_SOURCE EFUSE_BLK0 14 1 45 WR_DIS.RMA_DISABLE_FAST_VEF EFUSE_BLK0 14 1 46 WR_DIS.ENA_XTS_SHADOW EFUSE_BLK0 14 1 47 WR_DIS.ENA_SPI_BOOT_CRYPT_SCRAMBLER EFUSE_BLK0 14 1 48 WR_DIS.RE_ENABLE_JTAG_SOURCE EFUSE_BLK0 14 1 49 WR_DIS.SECURE_BOOT_EN EFUSE_BLK0 15 1 50 WR_DIS.SECURE_BOOT_AGGRESSIVE_REVOKE EFUSE_BLK0 16 1 51 WR_DIS.FLASH_TYPE EFUSE_BLK0 18 1 52 WR_DIS.DIS_USB_OTG_DOWNLOAD_MODE EFUSE_BLK0 18 1 53 WR_DIS.FLASH_TPUW EFUSE_BLK0 18 1 54 WR_DIS.DIS_DOWNLOAD_MODE EFUSE_BLK0 18 1 55 WR_DIS.DIS_DIRECT_BOOT EFUSE_BLK0 18 1 56 WR_DIS.DIS_USB_SERIAL_JTAG_ROM_PRINT EFUSE_BLK0 18 1 57 WR_DIS.DIS_USB_SERIAL_JTAG_DOWNLOAD_MODE EFUSE_BLK0 18 1 58 WR_DIS.ENABLE_SECURITY_DOWNLOAD EFUSE_BLK0 18 1 59 WR_DIS.UART_PRINT_CONTROL EFUSE_BLK0 18 1 60 WR_DIS.FORCE_SEND_RESUME EFUSE_BLK0 18 1 61 WR_DIS.SECURE_VERSION EFUSE_BLK0 18 1 62 WR_DIS.HUK_GEN_STATE EFUSE_BLK0 19 1 63 WR_DIS.BLK1 EFUSE_BLK0 20 1 64 WR_DIS.MAC EFUSE_BLK0 20 1 65 WR_DIS.MAC_EXT EFUSE_BLK0 20 1 66 WR_DIS.WAFER_VERSION_MINOR EFUSE_BLK0 20 1 67 WR_DIS.WAFER_VERSION_MAJOR EFUSE_BLK0 20 1 68 WR_DIS.DISABLE_WAFER_VERSION_MAJOR EFUSE_BLK0 20 1 69 WR_DIS.DISABLE_BLK_VERSION_MAJOR EFUSE_BLK0 20 1 70 WR_DIS.BLK_VERSION_MINOR EFUSE_BLK0 20 1 71 WR_DIS.BLK_VERSION_MAJOR EFUSE_BLK0 20 1 72 WR_DIS.PSRAM_CAP EFUSE_BLK0 20 1 73 WR_DIS.TEMP EFUSE_BLK0 20 1 74 WR_DIS.PSRAM_VENDOR EFUSE_BLK0 20 1 75 WR_DIS.PKG_VERSION EFUSE_BLK0 20 1 76 WR_DIS.SYS_DATA_PART1 EFUSE_BLK0 21 1 77 WR_DIS.OPTIONAL_UNIQUE_ID EFUSE_BLK0 21 1 78 WR_DIS.BLOCK_USR_DATA EFUSE_BLK0 22 1 79 WR_DIS.CUSTOM_MAC EFUSE_BLK0 22 1 80 WR_DIS.BLOCK_KEY0 EFUSE_BLK0 23 1 81 WR_DIS.BLOCK_KEY1 EFUSE_BLK0 24 1 82 WR_DIS.BLOCK_KEY2 EFUSE_BLK0 25 1 83 WR_DIS.BLOCK_KEY3 EFUSE_BLK0 26 1 84 WR_DIS.BLOCK_KEY4 EFUSE_BLK0 27 1 85 WR_DIS.BLOCK_SYS_DATA2 EFUSE_BLK0 28 1 86 WR_DIS.USB_DEVICE_EXCHG_PINS EFUSE_BLK0 28 1 87 WR_DIS.SOFT_DIS_JTAG EFUSE_BLK0 31 1 88 RD_DIS EFUSE_BLK0 32 7 89 RD_DIS.BLOCK_KEY0 EFUSE_BLK0 32 1 90 RD_DIS.BLOCK_KEY1 EFUSE_BLK0 33 1 91 RD_DIS.BLOCK_KEY2 EFUSE_BLK0 34 1 92 RD_DIS.BLOCK_KEY3 EFUSE_BLK0 35 1 93 RD_DIS.BLOCK_KEY4 EFUSE_BLK0 36 1 94 DIS_USB_JTAG EFUSE_BLK0 42 1 95 DIS_FORCE_DOWNLOAD EFUSE_BLK0 44 1 96 SPI_DOWNLOAD_MSPI_DIS EFUSE_BLK0 45 1 97 DIS_TWAI EFUSE_BLK0 46 1 98 JTAG_SEL_ENABLE EFUSE_BLK0 47 1 99 SOFT_DIS_JTAG EFUSE_BLK0 48 3 100 DIS_PAD_JTAG EFUSE_BLK0 51 1 101 DIS_DOWNLOAD_MANUAL_ENCRYPT EFUSE_BLK0 52 1 102 HUK_GEN_STATE EFUSE_BLK0 55 5 103 KM_RND_SWITCH_CYCLE EFUSE_BLK0 64 1 104 KM_DISABLE_DEPLOY_MODE EFUSE_BLK0 66 5 105 KM_DEPLOY_ONLY_ONCE EFUSE_BLK0 71 5 106 FORCE_USE_KEY_MANAGER_KEY EFUSE_BLK0 76 5 107 FORCE_DISABLE_SW_INIT_KEY EFUSE_BLK0 81 1 108 KM_XTS_KEY_LENGTH_256 EFUSE_BLK0 82 1 109 WDT_DELAY_SEL EFUSE_BLK0 83 1 110 DIS_SM_CRYPT EFUSE_BLK0 84 1 111 SPI_BOOT_CRYPT_CNT EFUSE_BLK0 85 3 112 SECURE_BOOT_KEY_REVOKE0 EFUSE_BLK0 88 1 113 SECURE_BOOT_KEY_REVOKE1 EFUSE_BLK0 89 1 114 SECURE_BOOT_KEY_REVOKE2 EFUSE_BLK0 90 1 115 KEY_PURPOSE_0 EFUSE_BLK0 96 5 116 KEY_PURPOSE_1 EFUSE_BLK0 101 5 117 KEY_PURPOSE_2 EFUSE_BLK0 106 5 118 KEY_PURPOSE_3 EFUSE_BLK0 111 5 119 KEY_PURPOSE_4 EFUSE_BLK0 116 5 120 ECC_FORCE_CONST_TIME EFUSE_BLK0 121 1 121 ECDSA_DISABLE_SOFT_K EFUSE_BLK0 122 1 122 SEC_DPA_LEVEL EFUSE_BLK0 123 2 123 XTS_DPA_CLK_ENABLE EFUSE_BLK0 125 1 124 XTS_DPA_PSEUDO_LEVEL EFUSE_BLK0 128 2 125 SECURE_BOOT_EN EFUSE_BLK0 130 1 126 SECURE_BOOT_AGGRESSIVE_REVOKE EFUSE_BLK0 131 1 127 FLASH_TYPE EFUSE_BLK0 133 1 128 DIS_USB_OTG_DOWNLOAD_MODE EFUSE_BLK0 137 1 129 FLASH_TPUW EFUSE_BLK0 140 4 130 DIS_DOWNLOAD_MODE EFUSE_BLK0 144 1 131 DIS_DIRECT_BOOT EFUSE_BLK0 145 1 132 DIS_USB_SERIAL_JTAG_ROM_PRINT EFUSE_BLK0 146 1 133 LOCK_KM_KEY EFUSE_BLK0 147 1 134 DIS_USB_SERIAL_JTAG_DOWNLOAD_MODE EFUSE_BLK0 148 1 135 ENABLE_SECURITY_DOWNLOAD EFUSE_BLK0 149 1 136 UART_PRINT_CONTROL EFUSE_BLK0 150 2 137 FORCE_SEND_RESUME EFUSE_BLK0 152 1 138 SECURE_VERSION EFUSE_BLK0 160 16 139 SECURE_BOOT_DISABLE_FAST_WAKE EFUSE_BLK0 176 1 140 HYS_EN_PAD EFUSE_BLK0 177 1 141 DCDC_VSET_EN EFUSE_BLK0 194 1 142 DIS_WDT EFUSE_BLK0 195 1 143 DIS_SWD EFUSE_BLK0 196 1 144 SECURE_BOOT_SHA384_EN EFUSE_BLK0 203 1 145 BOOTLOADER_ANTI_ROLLBACK_SECURE_VERSION EFUSE_BLK0 204 4 146 BOOTLOADER_ANTI_ROLLBACK_EN EFUSE_BLK0 208 1 147 BOOTLOADER_ANTI_ROLLBACK_UPDATE_IN_ROM EFUSE_BLK0 209 1 148 RECOVERY_BOOTLOADER_FLASH_SECTOR EFUSE_BLK0 210 12 149 RMA_ENA EFUSE_BLK0 222 2 150 RMA_SESSION_COUNTER EFUSE_BLK0 224 3 151 RMA_NONCE_ENA EFUSE_BLK0 227 2 152 RMA_CHIP_INFO_SOURCE EFUSE_BLK0 229 1 153 RMA_DISABLE_FAST_VEF EFUSE_BLK0 230 1 154 PVT_0_GLITCH_EN EFUSE_BLK0 231 1 155 PVT_0_GLITCH_MODE EFUSE_BLK0 232 2 156 PVT_1_GLITCH_EN EFUSE_BLK0 234 1 157 PVT_1_GLITCH_MODE EFUSE_BLK0 235 2 158 PMU_FLASH_POWER_SEL EFUSE_BLK0 237 1 159 PMU_FLASH_POWER_SEL_EN EFUSE_BLK0 238 1 160 POWER_GLITCH_EN EFUSE_BLK0 239 4 161 ENA_XTS_SHADOW EFUSE_BLK0 243 1 162 ENA_SPI_BOOT_CRYPT_SCRAMBLER EFUSE_BLK0 244 1 163 RE_ENABLE_JTAG_SOURCE EFUSE_BLK0 245 1 164 MAC EFUSE_BLK1 0 8 165 MAC EFUSE_BLK1 8 8 166 MAC EFUSE_BLK1 16 8 167 MAC EFUSE_BLK1 24 8 168 MAC EFUSE_BLK1 32 8 169 MAC EFUSE_BLK1 40 8 170 MAC_EXT EFUSE_BLK1 48 8 171 MAC_EXT EFUSE_BLK1 56 8 172 WAFER_VERSION_MINOR EFUSE_BLK1 114 4 173 WAFER_VERSION_MAJOR EFUSE_BLK1 118 2 174 DISABLE_WAFER_VERSION_MAJOR EFUSE_BLK1 120 1 175 DISABLE_BLK_VERSION_MAJOR EFUSE_BLK1 121 1 176 BLK_VERSION_MINOR EFUSE_BLK1 122 3 177 BLK_VERSION_MAJOR EFUSE_BLK1 125 2 178 PSRAM_CAP EFUSE_BLK1 127 3 179 TEMP EFUSE_BLK1 130 2 180 PSRAM_VENDOR EFUSE_BLK1 132 2 181 PKG_VERSION EFUSE_BLK1 134 2 182 OPTIONAL_UNIQUE_ID EFUSE_BLK2 0 128 183 USER_DATA EFUSE_BLK3 0 256 184 USER_DATA.MAC_CUSTOM EFUSE_BLK3 200 48 185 KEY0 EFUSE_BLK4 0 256 186 KEY1 EFUSE_BLK5 0 256 187 KEY2 EFUSE_BLK6 0 256 188 KEY3 EFUSE_BLK7 0 256 189 KEY4 EFUSE_BLK8 0 256 190 SYS_DATA_PART2 EFUSE_BLK9 0 32 191 USB_DEVICE_EXCHG_PINS EFUSE_BLK9 192 1 Used bits in efuse table: EFUSE_BLK0 [0 31] [0 1] [1 1] [1 1] ... [140 152] [160 177] [194 196] [203 245] EFUSE_BLK1 [0 63] [114 135] EFUSE_BLK2 [0 127] EFUSE_BLK3 [0 255] [200 247] EFUSE_BLK4 [0 255] EFUSE_BLK5 [0 255] EFUSE_BLK6 [0 255] EFUSE_BLK7 [0 255] EFUSE_BLK8 [0 255] EFUSE_BLK9 [0 31] [192 192] Note: Not printed ranges are free for using. (bits in EFUSE_BLK0 are reserved for Espressif)