Specifications

ASIX ELECTRONICS CORPORATION
14
AX88772
USB to 10/100 Fast Ethernet/HomePNA Controller
4.1 Detailed Description
The following sections provide detailed description for some of the field in serial EEPROM memory map, for other fields
not covered here, please refer to AX88772 EEPROM user guide for more details.
4.1.1 Word Count for Preload (00h)
The number of words to be preloaded by the EEPROM loader = 15h.
4.1.2 Flag (01h)
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8
Reserved TDPE CEM
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
TACE RDCE SCPR DCK 1 RWU Reserved SP
SP: Self-Power (for USB GetStatus)
1: Self power.
0: Bus power.
RWU: Remote Wakeup support.
1: Indicate that this device supports Remote Wakeup.
0: Not support.
DCK: Disable Chirp K.
1: Disabled.
0: Enable.
SCPR: Software Control PHY Reset.
1: The PRL and PRTE bits of Software Reset Register control the PHYRST_N output level.
0: The USB reset on USB bus and PRTE bit of Software Reset Register control the PHYRST_N output level.
RDCE: RX Drop CRC Enable.
1: CRC byte is dropped on received MAC frame forwarding to host.
0: CRC byte is not dropped.
TACE: TX Append CRC Enable.
1: CRC byte is generated and appended by the ASIC for every transmitted MAC frame.
0: CRC byte is not appended.
CEM: Capture Effective Mode.
1: Capture effective mode enable.
0: Disabled.
TDPE: Test Debug Port Enable.
1: Enable test debug port for chip debug purpose.
0: Disable test debug port and the chip operate in normal function mode
Bit 1, 10~15: Reserved.
4.1.3 Node ID (04~06h)
The Node ID 0 to 5 bytes represent the MAC address of the device, for example, if MAC address = 01-23-45-67-89-ABh,
then Node ID 0 = 01, Node ID 1 = 23, Node ID 2 = 45, Node ID 3 = 67, Node ID 4 = 89, and Node ID 5 = AB.