LM3S6911 Luminary Micro, Inc, LM3S6911 Datasheet - Page 402

• Manufacturer Part Number: LM3S6911
• Description: Lm3s6911 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

Reset
Type
Ethernet Controller
Ethernet PHY Management Register 0 – Control (MR0)
Base 0x4004.8000
Address 0x00
Type R/W, reset 0x3100
402
Bit/Field
RESET
15
14
13
12
11
10
R/W
9
8
15
0
LOOPBK
R/W
Register 16: Ethernet PHY Management Register 0 – Control (MR0), address
0x00
This register enables software to configure the operation of the PHY. The default settings of these
registers are designed to initialize the PHY to a normal operational mode without configuration.
14
0
SPEEDSL
SPEEDSL
ANEGEN
LOOPBK
R/W
DUPLEX
PWRDN
RANEG
13
RESET
1
Name
ISO
ANEGEN
R/W
12
1
PWRDN
R/W
11
0
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
ISO
10
0
RANEG
Reset
R/W
9
0
0
0
1
1
0
0
0
1
Preliminary
DUPLEX
R/W
8
1
Description
Reset Registers
When set, resets the registers to their default state and reinitializes
internal state machines. Once the reset operation has completed, this
bit is cleared by hardware.
Loopback Mode
When set, enables the Loopback mode of operation. The receive circuitry
is isolated from the physical medium and transmissions are sent back
through the receive circuitry instead of the medium.
Speed Select
Auto-Negotiation Enable
When set, enables the Auto-Negotiation process.
Power Down
When set, places the PHY into a low-power consuming state.
Isolate
When set, isolates transmit and receive data paths and ignores all
signaling on these buses.
Restart Auto-Negotiation
When set, restarts the Auto-Negotiation process. Once the restart has
initiated, this bit is cleared by hardware.
Set Duplex Mode
Value
Value
1
0
1
0
COLT
R/W
Description
Enables the 100 Mb/s mode of operation (100BASE-TX).
Enables the 10 Mb/s mode of operation (10BASE-T).
Description
Enables the Full-Duplex mode of operation. This bit can be
set by software in a manual configuration process or by the
Auto-Negotiation process.
Enables the Half-Duplex mode of operation.
7
0
R/W
6
0
R/W
5
0
R/W
4
0
reserved
R/W
3
0
R/W
2
0
July 26, 2008
R/W
1
0
R/W
0
0