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esp-idf/docs/en/api-reference/system/inc/espefuse_summary_ESP32-H2.rst

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.. code-block:: none
idf.py efuse-summary
Executing action: efuse-summary
(...)
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 icache is disabled or enabled. = False R/W (0b0)
1: disabled. 0: enabled
POWERGLITCH_EN (BLOCK0) Represents whether power glitch function is enable = False R/W (0b0)
d. 1: enabled. 0: disabled
DIS_TWAI (BLOCK0) Represents whether TWAI function is disabled or en = False R/W (0b0)
abled. 1: disabled. 0: enabled
DIS_DIRECT_BOOT (BLOCK0) Represents whether direct boot mode is disabled or = False R/W (0b0)
enabled. 1: disabled. 0: enabled
UART_PRINT_CONTROL (BLOCK0) Set the default UARTboot message output mode = Enable R/W (0b00)
HYS_EN_PAD0 (BLOCK0) Set bits to enable hysteresis function of PAD0~5 = 0 R/W (0b000000)
HYS_EN_PAD1 (BLOCK0) Set bits to enable hysteresis function of PAD6~27 = 0 R/W (0b0000000000000000000000)
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 the programmed value. Otherwise; the
waiting 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. 1: forced. 0:not for
ced
FLASH_CAP (BLOCK1) = 0 R/W (0b000)
FLASH_TEMP (BLOCK1) = 0 R/W (0b00)
FLASH_VENDOR (BLOCK1) = 0 R/W (0b000)
Identity fuses:
WAFER_VERSION_MINOR (BLOCK1) = 0 R/W (0b000)
WAFER_VERSION_MAJOR (BLOCK1) = 0 R/W (0b00)
DISABLE_WAFER_VERSION_MAJOR (BLOCK1) Disables check of wafer version major = False R/W (0b0)
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
BLK_VERSION_MINOR (BLOCK2) BLK_VERSION_MINOR of BLOCK2 = 0 R/W (0b000)
BLK_VERSION_MAJOR (BLOCK2) BLK_VERSION_MAJOR of BLOCK2 = 0 R/W (0b00)
DISABLE_BLK_VERSION_MAJOR (BLOCK2) Disables check of blk version major = False R/W (0b0)
Jtag fuses:
JTAG_SEL_ENABLE (BLOCK0) Set this bit to enable selection between usb_to_jt = False R/W (0b0)
ag and pad_to_jtag through strapping gpio25 when b
oth EFUSE_DIS_PAD_JTAG and EFUSE_DIS_USB_JTAG are
equal to 0
SOFT_DIS_JTAG (BLOCK0) Represents whether JTAG is disabled in soft way. O = 0 R/W (0b000)
dd number: disabled. Even number: enabled
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
= 60:55:f9:f7:2c:a2:ff:fe (OK) R/W
MAC_EXT (BLOCK1) Stores the extended bits of MAC address = ff:fe (OK) R/W
CUSTOM_MAC (BLOCK3) Custom MAC
= 00:00:00:00:00:00:ff:fe (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: disable
ed. 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
ECDSA_FORCE_USE_HARDWARE_K (BLOCK0) Represents whether hardware random number k is for = False R/W (0b0)
ced used in ESDCA. 1: force used. 0: not force use
d
CRYPT_DPA_ENABLE (BLOCK0) Represents whether anti-dpa attack is enabled. 1:e = False R/W (0b0)
nabled. 0: disabled
SECURE_BOOT_EN (BLOCK0) Represents whether secure boot is enabled or disab = False R/W (0b0)
led. 1: enabled. 0: disabled
SECURE_BOOT_AGGRESSIVE_REVOKE (BLOCK0) Represents whether revoking aggressive secure boot = False R/W (0b0)
is enabled or disabled. 1: enabled. 0: disabled
DIS_DOWNLOAD_MODE (BLOCK0) Represents whether Download mode is disabled or en = False R/W (0b0)
abled. 1: disabled. 0: enabled
ENABLE_SECURITY_DOWNLOAD (BLOCK0) Represents whether security download is enabled or = False R/W (0b0)
disabled. 1: enabled. 0: disabled
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 disabled = False R/W (0b0)
or enabled when Secure Boot is enabled. 1: disable
ed. 0: enabled
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: enable
d
USB_EXCHG_PINS (BLOCK0) Represents whether the D+ and D- pins is exchanged = False R/W (0b0)
. 1: exchanged. 0: not exchanged
DIS_USB_SERIAL_JTAG_ROM_PRINT (BLOCK0) Set this bit to disable USB-Serial-JTAG print duri = False R/W (0b0)
ng rom boot
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: disabled. 0: ena
bled
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) Represents whether RTC watchdog timeout threshold = 0 R/W (0b00)
is selected at startup. 1: selected. 0: not select
ed
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