Espressif ESP32 Technical Reference Manual page 301

11 I2C Controller (I2C)
Name
I2C_COMD12_REG
I2C_COMD13_REG
I2C_COMD14_REG
I2C_COMD15_REG
Espressif Systems
Description
I2C command register 12
I2C command register 13
I2C command register 14
I2C command register 15
301
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I2C0 I2C1
0x3FF53088 0x3FF67088 R/W
0x3FF5308C 0x3FF6708C R/W
0x3FF53090 0x3FF67090 R/W
0x3FF53094 0x3FF67094 R/W
ESP32 TRM (Version 5.2)
Acc