AX88179
USB 3.0 to 10/100/1000M Gigabit Ethernet Controller
4 Serial EEPROM/eFuse Memory Map
EEPROM
OFFSET
00h
HIGH BYTE
LOW BYTE
Node ID 1
Node ID 3
Node ID 0 (Note_1)
Node ID 2
01h
02h
Node ID 5
Node ID 4
03h
PID_HB
PID_LB
04h
VID_HB
VID_LB
05h
Flag
EEPROM Checksum (Note_2)
Reserved
06h
Reserved
07h
Max. Power for Self Power
EndPoint1 for SS/HS
Language ID High Byte
Length of Product String (bytes)
Length of Manufacturer String (bytes)
Length of Serial Number String (bytes)
Length of BOS-type Descriptor (bytes)
Max. Power for Bus Power
EndPoint1 for FS
08h
09h
Language ID Low Byte
Offset of Product String (0Eh)
Offset of Manufacturer String (1Ah)
Offset of Serial Number String (26h)
Offset of BOS-type Descriptor (2Dh)
0Ah
0Bh
0Ch
0Dh
19~0Eh
25~1Ah
2C~26h
3B~2Dh
3Ch
Product String: (Max.) 24 bytes
Manufacturer String: (Max.) 24 bytes
Serial Number String: (Max.) 14 bytes
BOS-type Descriptor: (Max.) 30 bytes
Reserved
Max. Burst: [7:4] for EP3, [3:0] for EP2
41~3Dh
42h
Fixed_pattern (10 bytes)
LED_Mode_HB
Table 4
LED_Mode_LB
: Serial EEPROM Memory Map
Note_1: The Node ID 0 value cannot be set to 0xFF and 1st bit of Node ID 0 can not be set to “1” (i.e. cannot be set to
multicast MAC address).
Note_2: The value of EEPROM Checksum field located at EEPROM offset 05h (low byte). The correct value must be equal
to (0xFF - SUM [EEPROM offset 03h ~ 04h]). If SUM [EEPROM offset 03h ~ 04h] has carry, please add ‘1’ to its
result.
Note_3: Total usage is about 134 bytes.
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ASIX [ ASIX ELECTRONICS CORPORATION ]
