LM3S6611 Datasheet, PDF (546/647 Pages) List of Unclassifed Manufacturers – Microcontroller

Ethernet Controller
Register 24: Ethernet PHY Management Register 18 – Diagnostic (MR18),
address 0x12
This register enables software to diagnose the results of the previous auto-negotiation.
Ethernet PHY Management Register 18 – Diagnostic (MR18)
Base 0x4004.8000
Address 0x12
Type RO, reset 0x0000
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
reserved
ANEGF DPLX RATE RXSD RX_LOCK
reserved
Type RO
RO
RO
RC
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit/Field
15:13
12
11
10
9
8
7:0
Name
reserved
ANEGF
DPLX
RATE
RXSD
RX_LOCK
reserved
Type
RO
RC
RO
RO
RO
RO
RO
Reset
0x0
0
0
0
0
0
0x00
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.
Auto-Negotiation Failure
When set, this bit indicates that no common technology was found during
auto-negotiation and auto-negotiation has failed. This bit remains set
until read.
Duplex Mode
When set, this bit indicates that Full-Duplex was the highest common
denominator found during the auto-negotiation process. Otherwise,
Half-Duplex was the highest common denominator found.
Rate
When set, this bit indicates that 100BASE-TX was the highest common
denominator found during the auto-negotiation process. Otherwise,
10BASE-T was the highest common denominator found.
Receive Detection
When set, this bit indicates that receive signal detection has occurred
(in 100BASE-TX mode) or that Manchester-encoded data has been
detected (in 10BASE-T mode).
Receive PLL Lock
When set, this bit indicates that the Receive PLL has locked onto the
receive signal for the selected speed of operation (10BASE-T or
100BASE-TX).
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.
546
July 16, 2014
Texas Instruments-Production Data