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 AX88772L application note 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.

ASIX ELECTRONICS CORPORATION

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