.. code-block:: none $ ./efuse_table_gen.py {IDF_TARGET_PATH_NAME}/esp_efuse_table.csv --info Verifying efuse table... 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.DIS_ICACHE EFUSE_BLK0 2 1 4 WR_DIS.DIS_USB_JTAG EFUSE_BLK0 2 1 5 WR_DIS.DIS_FORCE_DOWNLOAD EFUSE_BLK0 2 1 6 WR_DIS.DIS_TWAI EFUSE_BLK0 2 1 7 WR_DIS.JTAG_SEL_ENABLE EFUSE_BLK0 2 1 8 WR_DIS.DIS_PAD_JTAG EFUSE_BLK0 2 1 9 WR_DIS.DIS_DOWNLOAD_MANUAL_ENCRYPT EFUSE_BLK0 2 1 10 WR_DIS.WDT_DELAY_SEL EFUSE_BLK0 3 1 11 WR_DIS.SPI_BOOT_CRYPT_CNT EFUSE_BLK0 4 1 12 WR_DIS.SECURE_BOOT_KEY_REVOKE0 EFUSE_BLK0 5 1 13 WR_DIS.SECURE_BOOT_KEY_REVOKE1 EFUSE_BLK0 6 1 14 WR_DIS.SECURE_BOOT_KEY_REVOKE2 EFUSE_BLK0 7 1 15 WR_DIS.KEY_PURPOSE_0 EFUSE_BLK0 8 1 16 WR_DIS.KEY_PURPOSE_1 EFUSE_BLK0 9 1 17 WR_DIS.KEY_PURPOSE_2 EFUSE_BLK0 10 1 18 WR_DIS.KEY_PURPOSE_3 EFUSE_BLK0 11 1 19 WR_DIS.KEY_PURPOSE_4 EFUSE_BLK0 12 1 20 WR_DIS.KEY_PURPOSE_5 EFUSE_BLK0 13 1 21 WR_DIS.SEC_DPA_LEVEL EFUSE_BLK0 14 1 22 WR_DIS.SECURE_BOOT_EN EFUSE_BLK0 15 1 23 WR_DIS.SECURE_BOOT_AGGRESSIVE_REVOKE EFUSE_BLK0 16 1 24 WR_DIS.SPI_DOWNLOAD_MSPI_DIS EFUSE_BLK0 17 1 25 WR_DIS.FLASH_TPUW EFUSE_BLK0 18 1 26 WR_DIS.DIS_DOWNLOAD_MODE EFUSE_BLK0 18 1 27 WR_DIS.DIS_DIRECT_BOOT EFUSE_BLK0 18 1 28 WR_DIS.DIS_USB_SERIAL_JTAG_ROM_PRINT EFUSE_BLK0 18 1 29 WR_DIS.DIS_USB_SERIAL_JTAG_DOWNLOAD_MODE EFUSE_BLK0 18 1 30 WR_DIS.ENABLE_SECURITY_DOWNLOAD EFUSE_BLK0 18 1 31 WR_DIS.UART_PRINT_CONTROL EFUSE_BLK0 18 1 32 WR_DIS.FORCE_SEND_RESUME EFUSE_BLK0 18 1 33 WR_DIS.SECURE_VERSION EFUSE_BLK0 18 1 34 WR_DIS.SECURE_BOOT_DISABLE_FAST_WAKE EFUSE_BLK0 19 1 35 WR_DIS.BLK1 EFUSE_BLK0 20 1 36 WR_DIS.MAC EFUSE_BLK0 20 1 37 WR_DIS.MAC_EXT EFUSE_BLK0 20 1 38 WR_DIS.SYS_DATA_PART1 EFUSE_BLK0 21 1 39 WR_DIS.BLOCK_SYS_DATA1 EFUSE_BLK0 21 1 40 WR_DIS.BLOCK_USR_DATA EFUSE_BLK0 22 1 41 WR_DIS.CUSTOM_MAC EFUSE_BLK0 22 1 42 WR_DIS.BLOCK_KEY0 EFUSE_BLK0 23 1 43 WR_DIS.BLOCK_KEY1 EFUSE_BLK0 24 1 44 WR_DIS.BLOCK_KEY2 EFUSE_BLK0 25 1 45 WR_DIS.BLOCK_KEY3 EFUSE_BLK0 26 1 46 WR_DIS.BLOCK_KEY4 EFUSE_BLK0 27 1 47 WR_DIS.BLOCK_KEY5 EFUSE_BLK0 28 1 48 WR_DIS.BLOCK_SYS_DATA2 EFUSE_BLK0 29 1 49 WR_DIS.USB_EXCHG_PINS EFUSE_BLK0 30 1 50 WR_DIS.VDD_SPI_AS_GPIO EFUSE_BLK0 30 1 51 WR_DIS.SOFT_DIS_JTAG EFUSE_BLK0 31 1 52 RD_DIS EFUSE_BLK0 32 7 53 RD_DIS.BLOCK_KEY0 EFUSE_BLK0 32 1 54 RD_DIS.BLOCK_KEY1 EFUSE_BLK0 33 1 55 RD_DIS.BLOCK_KEY2 EFUSE_BLK0 34 1 56 RD_DIS.BLOCK_KEY3 EFUSE_BLK0 35 1 57 RD_DIS.BLOCK_KEY4 EFUSE_BLK0 36 1 58 RD_DIS.BLOCK_KEY5 EFUSE_BLK0 37 1 59 RD_DIS.BLOCK_SYS_DATA2 EFUSE_BLK0 38 1 60 DIS_ICACHE EFUSE_BLK0 40 1 61 DIS_USB_JTAG EFUSE_BLK0 41 1 62 DIS_FORCE_DOWNLOAD EFUSE_BLK0 44 1 63 SPI_DOWNLOAD_MSPI_DIS EFUSE_BLK0 45 1 64 DIS_TWAI EFUSE_BLK0 46 1 65 JTAG_SEL_ENABLE EFUSE_BLK0 47 1 66 SOFT_DIS_JTAG EFUSE_BLK0 48 3 67 DIS_PAD_JTAG EFUSE_BLK0 51 1 68 DIS_DOWNLOAD_MANUAL_ENCRYPT EFUSE_BLK0 52 1 69 USB_EXCHG_PINS EFUSE_BLK0 57 1 70 VDD_SPI_AS_GPIO EFUSE_BLK0 58 1 71 KM_DISABLE_DEPLOY_MODE EFUSE_BLK0 64 4 72 KM_RND_SWITCH_CYCLE EFUSE_BLK0 68 2 73 KM_DEPLOY_ONLY_ONCE EFUSE_BLK0 70 4 74 FORCE_USE_KEY_MANAGER_KEY EFUSE_BLK0 74 4 75 FORCE_DISABLE_SW_INIT_KEY EFUSE_BLK0 78 1 76 WDT_DELAY_SEL EFUSE_BLK0 80 2 77 SPI_BOOT_CRYPT_CNT EFUSE_BLK0 82 3 78 SECURE_BOOT_KEY_REVOKE0 EFUSE_BLK0 85 1 79 SECURE_BOOT_KEY_REVOKE1 EFUSE_BLK0 86 1 80 SECURE_BOOT_KEY_REVOKE2 EFUSE_BLK0 87 1 81 KEY_PURPOSE_0 EFUSE_BLK0 88 4 82 KEY_PURPOSE_1 EFUSE_BLK0 92 4 83 KEY_PURPOSE_2 EFUSE_BLK0 96 4 84 KEY_PURPOSE_3 EFUSE_BLK0 100 4 85 KEY_PURPOSE_4 EFUSE_BLK0 104 4 86 KEY_PURPOSE_5 EFUSE_BLK0 108 4 87 SEC_DPA_LEVEL EFUSE_BLK0 112 2 88 SECURE_BOOT_EN EFUSE_BLK0 116 1 89 SECURE_BOOT_AGGRESSIVE_REVOKE EFUSE_BLK0 117 1 90 KM_XTS_KEY_LENGTH_256 EFUSE_BLK0 123 1 91 FLASH_TPUW EFUSE_BLK0 124 4 92 DIS_DOWNLOAD_MODE EFUSE_BLK0 128 1 93 DIS_DIRECT_BOOT EFUSE_BLK0 129 1 94 DIS_USB_SERIAL_JTAG_ROM_PRINT EFUSE_BLK0 130 1 95 LOCK_KM_KEY EFUSE_BLK0 131 1 96 DIS_USB_SERIAL_JTAG_DOWNLOAD_MODE EFUSE_BLK0 132 1 97 ENABLE_SECURITY_DOWNLOAD EFUSE_BLK0 133 1 98 UART_PRINT_CONTROL EFUSE_BLK0 134 2 99 FORCE_SEND_RESUME EFUSE_BLK0 136 1 100 SECURE_VERSION EFUSE_BLK0 137 16 101 SECURE_BOOT_DISABLE_FAST_WAKE EFUSE_BLK0 153 1 102 HYS_EN_PAD EFUSE_BLK0 154 1 103 XTS_DPA_PSEUDO_LEVEL EFUSE_BLK0 155 2 104 XTS_DPA_CLK_ENABLE EFUSE_BLK0 157 1 105 HUK_GEN_STATE EFUSE_BLK0 160 9 106 XTAL_48M_SEL EFUSE_BLK0 169 3 107 XTAL_48M_SEL_MODE EFUSE_BLK0 172 1 108 ECDSA_DISABLE_P192 EFUSE_BLK0 173 1 109 ECC_FORCE_CONST_TIME EFUSE_BLK0 174 1 110 MAC EFUSE_BLK1 0 8 111 MAC EFUSE_BLK1 8 8 112 MAC EFUSE_BLK1 16 8 113 MAC EFUSE_BLK1 24 8 114 MAC EFUSE_BLK1 32 8 115 MAC EFUSE_BLK1 40 8 116 MAC_EXT EFUSE_BLK1 48 16 117 SYS_DATA_PART2 EFUSE_BLK10 0 256 118 BLOCK_SYS_DATA1 EFUSE_BLK2 0 256 119 USER_DATA EFUSE_BLK3 0 256 120 USER_DATA.MAC_CUSTOM EFUSE_BLK3 200 48 121 KEY0 EFUSE_BLK4 0 256 122 KEY1 EFUSE_BLK5 0 256 123 KEY2 EFUSE_BLK6 0 256 124 KEY3 EFUSE_BLK7 0 256 125 KEY4 EFUSE_BLK8 0 256 126 KEY5 EFUSE_BLK9 0 256 Used bits in efuse table: EFUSE_BLK0 [0 31] [0 0] [2 2] ... [40 41] [44 52] [57 58] [64 78] [80 113] [116 117] [123 157] [160 174] EFUSE_BLK1 [0 63] EFUSE_BLK10 [0 255] EFUSE_BLK2 [0 255] 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 [0 255] Note: Not printed ranges are free for using. (bits in EFUSE_BLK0 are reserved for Espressif)