LU3X31T-T64 Datasheet, PDF (25/44 Pages) Agere Systems – LU3X31T-T64 Single-Port 3 10/100 Ethernet Transceiver TX

Preliminary Data Sheet
July 2000
LU3X31T-T64 Single-Port 3 V
10/100 Ethernet Transceiver TX
MII Registers (continued)
Table 15. PHY Identifier (Register 2h)
Bit(s)
15:0
Name
PHY-ID[31:16]
Description
IEEE address.
R/W Default
RO
0043h
Table 16. PHY Identifier (Register 3h)
Bit(s)
15:10
9:4
3:0
Name
PHY-ID[15:10]
PHY-ID[9:4]
PHY-ID[3:0]
Description
IEEE address.
Model No.
Rev. No.
R/W Default
RO 011101b
RO 000001b
RO
0001b
Table 17. Autonegotiation Advertisement (Register 4h)
Bit(s)
Name
Description
R/W
15
Next Page
1Capable of next-page function.
RO
0Not capable of next-page function.
This bit defaults to 0, indicating that
LU3X31T-T64 is not next-page capable.
14
Reserved
Reserved.
RO
13
Remote Fault
1Remote fault has been detected.
R/W
0No remote fault has been detected.
This bit is written by serial management
interface for the purpose of communicat-
ing the remote fault condition to the auto-
negotiation link partner.
12:10
IEEE Reserved
These 3 bits default to 0.
RO
9
Technology Ability Field for This bit defaults to 0, indicating that the
RO
100Base-T4
LU3X31T-T64 does not support
100Base-T4.
8:5
Technology Ability Field This 4-bit field contains the advertised
R/W
ability of this PHY. At powerup or reset,
the logic level of 100FDEN, 100HDEN,
10FDEN, and 10HDEN pins are latched
into bits 8 through 5, respectively.
4:0
Selector Field
These 5 bits are hardwired to 00001h,
RO
indicating that the LU3X31T-T64 supports
IEEE 802.3 CSMA/CD.
Default
0h
0h
0h
0h
0h
Pin
01h
Table 18. Autonegotiation Link Partner Ability (Register 5h)
Bit(s)
15
14
13
12:5
4:0
Name
Next Page
Acknowledge
Remote Fault
Technology Ability Field
Selector Field
Description
R/W
1Capable of next-page function.
RO
0Not capable of next-page function.
1Link partner acknowledges reception RO
of the ability data word.
0Not acknowledged.
1Remote fault has been detected.
RO
0No remote fault has been detected.
Supported technologies.
RO
Encoding definitions.
RO
Default
0h
0h
0h
0h
0h
Lucent Technologies Inc.
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