Espressif ESP32 Technical Reference Manual page 284

10 Ethernet Media Access Controller (MAC)
31 30 29
0 0 0x00
ADDRESS_ENABLE6 When this bit is set, the address filter module uses the seventh MAC address
for perfect filtering. When this bit is reset, the address filter module ignores the address for
filtering. (R/W)
SOURCE_ADDRESS6 When this bit is set, the EMACADDR6[47:0] is used to compare with the SA
fields of the received frame. When this bit is reset, the EMACADDR6[47:0] is used to compare
with the DA fields of the received frame. (R/W)
MASK_BYTE_CONTROL6 These bits are mask control bits for comparison of each of the
EMACADDR6 bytes. When set high, the MAC does not compare the corresponding byte of
received DA or SA with the contents of EMACADDR6 registers. Each bit controls the masking of
the bytes as follows:
• Bit[29]: EMACADDR6 High [15:8].
• Bit[28]: EMACADDR6 High [7:0].
• Bit[27]: EMACADDR6 Low [31:24].
• Bit[24]: EMACADDR6 Low [7:0].
You can filter a group of addresses (known as group address filtering) by masking one or more
bytes of the address. (R/W)
MAC_ADDRESS6_HI This field contains the upper 16 bits, Bits[47:32] of the seventh 6-byte MAC
address. (R/W)
31
EMACADDR6LOW_REG This field contains the lower 32 bits of the seventh 6-byte MAC address.
The content of this field is undefined, so the register needs to be configured after the initialization
process. (R/W)
Espressif Systems
Register 10.39. EMACADDR6HIGH_REG (0x1070)
24 23
0 0 0 0 0 0 0
Register 10.40. EMACADDR6LOW_REG (0x1074)
0x0FFFFFFFF
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16 15
0 0x0FFFF
284
0
Reset
0
Reset
ESP32 TRM (Version 5.2)