AX88178
USB to 10/100/1000 Gigabit Ethernet/HomePNA Controller
6.2.1.15 Multicast Filter Array (15h, read only and 16h, write only)
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
MA 0 [7:0]
MA 1 [7:0]
MA 2 [7:0]
MA 3 [7:0]
MA 4 [7:0]
MA 5 [7:0]
MA 6 [7:0]
MA 7 [7:0]
{MA7 [7:0], MA6 [7:0], MA5 [7:0], MA4 [7:0], MA3 [7:0], MA2 [7:0], MA1 [7:0], MA0 [7:0]} = the multicast
address bit map for multicast frame filtering block. See Figure 3: Multicast Filter Example, for example.
DA
81 81 81 81 81 81
CRC32
{crc31, 30, 29, 28, 27, 26}
Address[5:0] = 1Ah
MAR[63:0] =
400_0000h
Figure 3: Multicast Filter Example
6.2.1.16 Test Register (17h, write only)
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
MM [7:6]
LDRND
LDRND: Load Random number into MAC’s exponential back-off timer. User writes a “1” to enable the ASIC to load
a small random number into MAC’s back-off timer to shorten the back-off duration in each retry after
collision. This register is used for test purpose. Default value = 0.
MM [7:6]: Reserved.
6.2.1.17 Ethernet / HomePNA Phy Address Register (19h, read only)
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
SecPhyType [2:0]
PriPhyType [2:0]
SecPhyID [4:0]
PriPhyID [4:0]
SecPhyType, SecPhyID: The Secondary PHY address loaded from serial EEPROM’s offset address 11h.
PriPhyType, PriPhyID: The Primarily PHY address loaded from serial EEPROM’s offset address 11h.
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