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9. MAC Addresses and eFuse
9. MAC Addresses and eFuse
The eFuse in ESP32-S2 has been burnt into 48-bit mac_address. The actual addresses the chip uses in station
and AP modes correspond to mac_address in the following way:
• Station mode: mac_address
• AP mode: mac_address + 1
There are seven blocks in eFuse for users to use. Each block is 256 bits in size and has independent write/read
disable controller. Six of them can be used to store encrypted key or user data, and one is only used to store user
data.
Espressif Systems
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ESP32-S2-WROVER User Manual V0.1
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