LM3S6110 Datasheet, PDF (470/610 Pages) Texas Instruments – Stellaris® LM3S6110 Microcontroller

Ethernet Controller
Register 16: Ethernet PHY Management Register 1 – Status (MR1), address
0x01
This register enables software to determine the capabilities of the PHY layer and perform its
initialization and operation appropriately.
Ethernet PHY Management Register 1 – Status (MR1)
Base 0x4004.8000
Address 0x01
Type RO, reset 0x7849
15
14
13
12
11
10
9
8
reserved 100X_F 100X_H 10T_F 10T_H
reserved
Type RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
1
1
1
1
0
0
0
7
6
5
4
3
2
1
0
MFPS ANEGC RFAULT ANEGA LINK
JAB
EXTD
RO
RO
RO
RC
RO
RO
RC
RO
0
1
0
0
1
0
0
1
Bit/Field
15
14
13
12
11
10:7
6
5
4
3
Name
reserved
100X_F
100X_H
10T_F
10T_H
reserved
MFPS
ANEGC
RFAULT
ANEGA
Type
RO
RO
RO
RO
RO
RO
RO
RO
RC
RO
Reset
0
1
1
1
1
0
1
0
0
1
Description
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
100BASE-TX Full-Duplex Mode
When set, this bit indicates that the Ethernet Controller is capable of
supporting 100BASE-TX Full-Duplex mode.
100BASE-TX Half-Duplex Mode
When set, this bit indicates that the Ethernet Controller is capable of
supporting 100BASE-TX Half-Duplex mode.
10BASE-T Full-Duplex Mode
When set, this bit indicates that the Ethernet Controller is capable of
10BASE-T Full-Duplex mode.
10BASE-T Half-Duplex Mode
When set, this bit indicates that the Ethernet Controller is capable of
supporting 10BASE-T Half-Duplex mode.
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
Management Frames with Preamble Suppressed
When set, this bit indicates that the Management Interface is capable
of receiving management frames with the preamble suppressed.
Auto-Negotiation Complete
When set, this bit indicates that the auto-negotiation process has been
completed and that the extended registers defined by the
auto-negotiation protocol are valid.
Remote Fault
When set, this bit indicates that a remote fault condition has been
detected. This bit remains set until it is read, even if the condition no
longer exists.
Auto-Negotiation
When set, this bit indicates that the Ethernet Controller has the ability
to perform auto-negotiation.
470
June 18, 2012
Texas Instruments-Production Data