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esp-idf/docs/en/api-reference/system/inc/espefuse_summary_ESP32-C61.rst
Konstantin Kondrashov d834e4333a feat(docs): Update ESP32-C61 efuse documentation
2025-08-14 11:52:03 +03:00

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.. code-block:: none
idf.py -p /dev/ttyUSB0 efuse-summary
espefuse.py v4.10.dev2
Connecting....
=== Run "summary" command ===
EFUSE_NAME (Block) Description = [Meaningful Value] [Readable/Writeable] (Hex Value)
----------------------------------------------------------------------------------------
Config fuses:
WR_DIS (BLOCK0) Disable programming of individual eFuses = 0 R/W (0x00000000)
RD_DIS (BLOCK0) Disable reading from BlOCK4-10 = 0 R/W (0b0000000)
DIS_ICACHE (BLOCK0) Represents whether cache is disabled. 1: Disabled = False R/W (0b0)
0: Enabled.
DIS_DIRECT_BOOT (BLOCK0) Represents whether direct boot mode is disabled or = False R/W (0b0)
enabled. 1. Disable 0: Enable
UART_PRINT_CONTROL (BLOCK0) Represents the types of UART printing = 0 R/W (0b00)
HYS_EN_PAD (BLOCK0) Set bits to enable hysteresis function of PAD0~27 = False R/W (0b0)
DIS_WIFI6 (BLOCK0) Represents whether the WIFI6 feature is enable or = False R/W (0b0)
disabled. 1: WIFI6 is disable; 0: WIFI6 is enabled
ECC_FORCE_CONST_TIME (BLOCK0) Represents whether to force ecc to use const-time = False R/W (0b0)
calculation mode. 1: Enable. 0: Disable
BOOTLOADER_ANTI_ROLLBACK_EN (BLOCK0) Represents whether the ani-rollback check for the = False R/W (0b0)
2nd stage bootloader is enabled.1: Enabled0: Disab
led
BOOTLOADER_ANTI_ROLLBACK_UPDATE_IN_ROM (BLOCK0) Represents whether the ani-rollback SECURE_VERSION = False R/W (0b0)
will be updated from the ROM bootloader.1: Enable
0: Disable
REPEAT_DATA4 (BLOCK0) Reserved = 0 R/W (0x000000)
PSRAM_CAP (BLOCK1) PSRAM capacity = 0 R/W (0b000)
PSRAM_VENDOR (BLOCK1) PSRAM vendor = 0 R/W (0b00)
TEMP (BLOCK1) Temperature = 0 R/W (0b00)
BLOCK_USR_DATA (BLOCK3) User data
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
BLOCK_SYS_DATA2 (BLOCK10) System data part 2 (reserved)
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
Flash fuses:
FLASH_TPUW (BLOCK0) Represents the flash waiting time after power-up; = 0 R/W (0x0)
in unit of ms. When the value less than 15; the wa
iting time is programmed value. Otherwise; the wai
ting time is 2 times the programmed value
FORCE_SEND_RESUME (BLOCK0) Represents whether ROM code is forced to send a re = False R/W (0b0)
sume command during SPI boot
RECOVERY_BOOTLOADER_FLASH_SECTOR (BLOCK0) Represents the starting flash sector (flash sector = 1008 R/W (0x3f0)
size is 0x1000) of the recovery bootloader used b
y the ROM bootloader If the primary bootloader fai
ls. 0 and 0xFFF - this feature is disabled
FLASH_CAP (BLOCK1) Flash capacity = 0 R/W (0b000)
FLASH_VENDOR (BLOCK1) Flash vendor = 0 R/W (0b000)
Identity fuses:
WAFER_VERSION_MINOR (BLOCK1) Minor chip version = 0 R/W (0x0)
WAFER_VERSION_MAJOR (BLOCK1) Major chip version = 1 R/W (0b01)
DISABLE_WAFER_VERSION_MAJOR (BLOCK1) Disables check of wafer version major = False R/W (0b0)
DISABLE_BLK_VERSION_MAJOR (BLOCK1) Disables check of blk version major = False R/W (0b0)
BLK_VERSION_MINOR (BLOCK1) BLK_VERSION_MINOR of BLOCK2 = 0 R/W (0b000)
BLK_VERSION_MAJOR (BLOCK1) BLK_VERSION_MAJOR of BLOCK2 = 0 R/W (0b00)
PKG_VERSION (BLOCK1) Package version = 0 R/W (0b000)
OPTIONAL_UNIQUE_ID (BLOCK2) Optional unique 128-bit ID
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
Jtag fuses:
JTAG_SEL_ENABLE (BLOCK0) Represents whether the selection between usb_to_jt = False R/W (0b0)
ag and pad_to_jtag through strapping gpio15 when b
oth EFUSE_DIS_PAD_JTAG and EFUSE_DIS_USB_JTAG are
equal to 0 is enabled or disabled. 1: enabled 0: d
isabled
DIS_PAD_JTAG (BLOCK0) Represents whether JTAG is disabled in the hard wa = False R/W (0b0)
y(permanently). 1: disabled 0: enabled
Mac fuses:
MAC (BLOCK1) MAC address
= 30:ed:a0:e5:25:20 (OK) R/W
CUSTOM_MAC (BLOCK3) Custom MAC
= 00:00:00:00:00:00 (OK) R/W
Security fuses:
DIS_FORCE_DOWNLOAD (BLOCK0) Represents whether the function that forces chip i = False R/W (0b0)
nto download mode is disabled or enabled. 1: disab
led 0: enabled
SPI_DOWNLOAD_MSPI_DIS (BLOCK0) Represents whether SPI0 controller during boot_mod = False R/W (0b0)
e_download is disabled or enabled. 1: disabled 0:
enabled
DIS_DOWNLOAD_MANUAL_ENCRYPT (BLOCK0) Represents whether flash encrypt function is disab = False R/W (0b0)
led or enabled(except in SPI boot mode). 1: disabled
0: enabled
SPI_BOOT_CRYPT_CNT (BLOCK0) Enables flash encryption when 1 or 3 bits are set = Disable R/W (0b000)
and disables otherwise
SECURE_BOOT_KEY_REVOKE0 (BLOCK0) Revoke 1st secure boot key = False R/W (0b0)
SECURE_BOOT_KEY_REVOKE1 (BLOCK0) Revoke 2nd secure boot key = False R/W (0b0)
SECURE_BOOT_KEY_REVOKE2 (BLOCK0) Revoke 3rd secure boot key = False R/W (0b0)
KEY_PURPOSE_0 (BLOCK0) Represents the purpose of Key0 = USER R/W (0x0)
KEY_PURPOSE_1 (BLOCK0) Represents the purpose of Key1 = USER R/W (0x0)
KEY_PURPOSE_2 (BLOCK0) Represents the purpose of Key2 = USER R/W (0x0)
KEY_PURPOSE_3 (BLOCK0) Represents the purpose of Key3 = USER R/W (0x0)
KEY_PURPOSE_4 (BLOCK0) Represents the purpose of Key4 = USER R/W (0x0)
KEY_PURPOSE_5 (BLOCK0) Represents the purpose of Key5 = USER R/W (0x0)
SEC_DPA_LEVEL (BLOCK0) Represents the spa secure level by configuring the = 0 R/W (0b00)
clock random divide mode
SECURE_BOOT_EN (BLOCK0) Represents whether secure boot is enabled or disab = False R/W (0b0)
led. 1. Enable 0: Disable
SECURE_BOOT_AGGRESSIVE_REVOKE (BLOCK0) Represents whether revoking aggressive secure boot = False R/W (0b0)
is enabled or disabled. 1. Enable 0: Disable
DIS_DOWNLOAD_MODE (BLOCK0) Represents whether Download mode is disable or ena = False R/W (0b0)
ble. 1. Disable 0: Enable
ENABLE_SECURITY_DOWNLOAD (BLOCK0) Represents whether security download is enabled or = False R/W (0b0)
disabled. 1: Enable 0: Disable
SECURE_VERSION (BLOCK0) Represents the version used by ESP-IDF anti-rollba = 0 R/W (0x0000)
ck feature
SECURE_BOOT_DISABLE_FAST_WAKE (BLOCK0) Represents whether FAST_VERIFY_ON_WAKE is disable = False R/W (0b0)
or enable when Secure Boot is enable
XTS_DPA_CLK_ENABLE (BLOCK0) Represents whether xts-aes anti-dpa attack clock i = False R/W (0b0)
s enabled. 1. Enable. 0: Disable.
XTS_DPA_PSEUDO_LEVEL (BLOCK0) Represents the pseudo round level of xts-aes anti- = 0 R/W (0b00)
dpa attack. 3: High. 2: Moderate 1. Low 0: Disabled
ECDSA_DISABLE_P192 (BLOCK0) Represents whether to disable P192 curve in ECDSA. = False R/W (0b0)
1: Disabled. 0: Not disabled
BOOTLOADER_ANTI_ROLLBACK_SECURE_VERSION (BLOCK0) Represents the anti-rollback secure version of the = 0 R/W (0x0)
2nd stage bootloader used by the ROM bootloader
BLOCK_KEY0 (BLOCK4)
Purpose: USER
Key0 or user data
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
BLOCK_KEY1 (BLOCK5)
Purpose: USER
Key1 or user data
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
BLOCK_KEY2 (BLOCK6)
Purpose: USER
Key2 or user data
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
BLOCK_KEY3 (BLOCK7)
Purpose: USER
Key3 or user data
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
BLOCK_KEY4 (BLOCK8)
Purpose: USER
Key4 or user data
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
BLOCK_KEY5 (BLOCK9)
Purpose: USER
Key5 or user data
= 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
Usb fuses:
DIS_USB_JTAG (BLOCK0) Represents whether the function of usb switch to j = False R/W (0b0)
tag is disabled or enabled. 1: disabled 0: enabled
USB_EXCHG_PINS (BLOCK0) Represents whether the D+ and D- pins of USB_SERIA = False R/W (0b0)
L_JTAG PHY is exchanged. 1: exchanged 0: not excha
nged
DIS_USB_SERIAL_JTAG_ROM_PRINT (BLOCK0) Represents whether print from USB-Serial-JTAG is d = False R/W (0b0)
isabled or enabled. 1. Disable 0: Enable
DIS_USB_SERIAL_JTAG_DOWNLOAD_MODE (BLOCK0) Represents whether the USB-Serial-JTAG download fu = False R/W (0b0)
nction is disabled or enabled. 1: Disable 0: Enable
Vdd fuses:
VDD_SPI_AS_GPIO (BLOCK0) Represents whether vdd spi pin is functioned as gp = False R/W (0b0)
io. 1: functioned 0: not functioned
Wdt fuses:
WDT_DELAY_SEL (BLOCK0) lp wdt timeout threshold at startup = initial time = 0 R/W (0b00)
out value * (2 ^ (EFUSE_WDT_DELAY_SEL + 1))
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