AX88178
USB to 10/100/1000 Gigabit Ethernet/HomePNA Controller
MFB [1:0]: Maximum Frame Burst transfer on USB bus.
00: 2048 Bytes
01: 4096 Bytes
10: 8192 Bytes
11: 16384 Bytes (default). User should set to this value when Jumbo packet mode is enabled to gain better transfer
throughput on USB bus.
6.2.1.13 IPG/IPG1/IPG2 Control Register (11h, read only and 12h, write only)
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
AA [7:0]
BB [7:0]
CC [7:0]
AA [6:0] = IPG [6:0].
BB [6:0] = IPG1 [6:0].
CC [6:0] = IPG2 [6:0].
IPG [6:0]: Inter Packet Gap for back-to-back transfer on TX direction in MII mode (default = 15h).
IPG1 [6:0]: IPG part1 value (default = 0Ch).
IPG2 [6:0]: IPG part1 value + part2 value (default = 12h).
AA [7]: Reserved.
BB [7]: Reserved.
CC [7]: Reserved.
6.2.1.14 Node ID Register (13h, read only and 14h, write only)
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
AA [7:0]
BB [7:0]
CC [7:0]
DD [7:0]
EE [7:0]
FF [7:0]
AA [7:0] = NOID 0.
BB [7:0] = NOID 1.
CC [7:0] = NOID 2.
DD [7:0] = NOID 3.
EE [7:0] = NOID 4.
FF [7:0] = NOID 5.
{FF [7:0], EE [7:0], DD [7:0], CC [7:0], BB [7:0], AA [7:0]} = Ethernet MAC address [47:0] of the node.
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