AX88772 datasheet(31/43 Pages) ASIX

31 / 43 page

ASIX ELECTRONICS CORPORATION

AX88772

USB to 10/100 Fast Ethernet/HomePNA Controller

7.1.3

PHY Identifier Register 1

Address 02h

Bit

Bit Name

Default

Description

15:0 OUI_MSB

003B hex, RO / PS

OUI most significant bits:

Bits 3 to 18 of the OUI are mapped to bits 15 to 0 of this register

respectively. The most significant two bits of the OUI are ignored.

7.1.4

PHY Identifier Register 2

Address 03h

Bit

Bit Name

Default

Description

15:10 OUI_LSB

00_0110, RO / PS

OUI least significant bits:

Bits 19 to 24 of the OUI are mapped to bits 15 to 10 of this register

respectively.

9:4

VNDR_MDL

00_0001, RO / PS

Vendor model number.

3:0

MDL_REV

0001, RO / PS

Model revision number.

7.1.5

Auto Negotiation Advertisement Register (ANAR)

Address 04h

Bit

Bit Name

Default

Description

0, RO / PS

Next page indication:

0 = No next page available

The PHY does not support the next page function.

ACK

0, RO

Acknowledgement:

1 = Link partner ability data reception acknowledged

0 = Not acknowledged

0, RW

Remote fault:

1 = Fault condition detected and advertised

0 = No fault detected

12:11 Reserved

X, RW

Reserved:

Write as 0, read as “don’t care”.

Pause

0, RW

Pause:

1 = Pause operation enabled for full-duplex links

0 = Pause operation not enabled

0, RO/PS

100BASE-T4 support:

0 = 100BASE-T4 not supported

TX_FD

1, RW

100BASE-TX full-duplex support:

1 = 100BASE-TX full-duplex supported by this device

0 = 100BASE-TX full-duplex not supported by this device

TX_HD

1, RW

100BASE-TX half-duplex support:

1 = 100BASE-TX half-duplex supported by this device

0 = 100BASE-TX half-duplex not supported by this device

10_FD

1, RW

10BASE-T full-duplex support:

1 = 10BASE-T full-duplex supported by this PHY

0 = 10BASE-T full-duplex not supported by this PHY

10_HD

1, RW

10BASE-T half-duplex support:

1 = 10BASE-T half-duplex supported by this PHY

0 = 10BASE-T half-duplex not supported by this PHY

4:0

Selector

0_0001, RW

Protocol selection bits:

These bits contain the binary encoded protocol selector supported

by this PHY. [0 0001] indicates that this PHY supports IEEE

802.3u CSMA/CD.

AX88772 Datasheet(PDF) 31 Page - ASIX Electronics Corporation

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