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esp-idf/docs/en/api-reference/system/inc/show-efuse-table_ESP32-S31.rst
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.. 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)