Espressif ESP32 Technical Reference Manual page 283

10 Ethernet Media Access Controller (MAC)
31 30 29
0 0 0x00
ADDRESS_ENABLE5 When this bit is set, the address filter module uses the sixth MAC address for
perfect filtering. When this bit is reset, the address filter module ignores the address for filtering.
(R/W)
SOURCE_ADDRESS5 When this bit is set, the EMACADDR5[47:0] is used to compare with the SA
fields of the received frame. When this bit is reset, the EMACADDR5[47:0] is used to compare
with the DA fields of the received frame. (R/W)
MASK_BYTE_CONTROL5 These bits are mask control bits for comparison of each of the
EMACADDR5 bytes. When set high, the MAC does not compare the corresponding byte of
received DA or SA with the contents of EMACADDR5 registers. Each bit controls the masking of
the bytes as follows:
• Bit[29]: EMACADDR5 High [15:8].
• Bit[28]: EMACADDR5 High [7:0].
• Bit[27]: EMACADDR5 Low [31:24].
• Bit[24]: EMACADDR5 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_ADDRESS5_HI This field contains the upper 16 bits, Bits[47:32] of the sixth 6-byte MAC ad-
dress. (R/W)
31
EMACADDR5LOW_REG This field contains the lower 32 bits of the sixth 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 10.37. EMACADDR5HIGH_REG (0x1068)
24 23
0 0 0 0 0 0 0
Register 10.38. EMACADDR5LOW_REG (0x106C)
0x0FFFFFFFF
Submit Documentation Feedback
16 15
0 0x0FFFF
283
0
Reset
0
Reset
ESP32 TRM (Version 5.2)