ASIX ELECTRONICS CORPORATION
43
AX88796 L 3-in-1 Local Bus Fast Ethernet Controller
5.2.3 MR2, MR3 -- Identification Registers (1 and 2) Bit Descriptions
FIELD
TYPE
2.15:0 (OUI[3:18])
R
Organizationally Unique Identifier.
The third through the twenty-fourth
bit of the OUI assigned to the PHY manufacturer by the IEEE are to be
placed in bits. 2.15:0 and 3.15:10. This value is programmable.
3.15:10 (OUI[19:24])
R
Organizationally Unique Identifier.
The remaining 6 bits of the OUI. The
value for bits 24:19 is programmable.
3.9:4 (MODEL[5:0])
R
Model Number.
6-bit model number of the device. The model number is
programmable.
3.3:0 (VERSION[3:0])
R
Revision Number.
The value of the present revision number. The version
number is programmable.
DESCRIPTION
5.2.4 MR4 – Autonegotiation Advertisement Registers Bit Descriptions
FIELD
TYPE
4.15 (NEXT_PAGE)
R/W
Next Page.
The next page function is activated by setting this bit to a 1. This
will allow the exchange of additional data. Data is carried by optional next
pages of information.
4.14 (ACK)
R/W
Acknowledge.
This bit is the acknowledge bit from the link code word.
4.13 (REM_FAULT)
R/W
Remote Fault.
When set to 1, the PHY indicates to the link partner a remote
fault condition.
4.12:10 (PAUSE)
R/W
Pause.
When set to a 1, it indicates that the PHY wishes to exchange flow
control information with its link partner.
4.9 (100BASET4)
R/W
100Base-T4.
This bit should always be set to 0.
4.8 (100BASET_FD)
R/W
100Base-TX Full Duplex.
If written to 1, autonegotiation will advertise
that the PHY is capable of 100Base-TX full-duplex operation.
4.7 (100BASETX)
R/W
100Base-TX.
If written to 1, autonegotiation will advertise that the PHY is
capable of 100Base-TX operation.
4.6 (10BASET_FD)
R/W
10Base-T Full Duplex.
If written to 1, autonegotiation will advertise that
the PHY is capable of 10Base-T full-duplex operation.
4.5 (10BASET)
R/W
10Base-T.
If written to 1, autonegotiation will advertise that the PHY is
capable of 10Base-T operation.
4.4:0 (SELECT)
R/W
Selector Field
. Reset with the value 00001 for IEEE 802.3.
DESCRIPTION
5.2.5 MR5 – Autonegotiation Link Partner Ability (Base Page) Register Bit
Descriptions
FIELD
TYPE
5.15
(LP_NEXT_PAGE)
partner wishes to engage in next page exchange.
5.14 (LP_ACK)
R
Link Partner Acknowledge.
When this bit is set to 1, it indicates that the
link partner has successfully received at least three consecutive and
consistent FLP bursts.
5.13
(LP_REM_FAULT)
a fault.
5.12:5
(LP_TECH_ABILITY)
link partner. These bits are similar to the bits defined for the MR4 register
(see Table 16).
5.4:0 (LP_SELECT)
R
Selector Field.
This field contains the type of message sent by the link
partner. For IEEE 802.3 compliant link partners, this field should read
00001.
DESCRIPTION
R
Link Partner Next Page.
When this bit is set to 1, it indicates that the link
R
Remote Fault.
When this bit is set to 1, it indicates that the link partner has
R
Technology Ability Field.
This field contains the technology ability of the