LM3S6950 Luminary Micro, Inc, LM3S6950 Datasheet - Page 425

• Manufacturer Part Number: LM3S6950
• Description: Lm3s6950 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

Reset
Type
Ethernet PHY Management Register 23 – LED Configuration (MR23)
Base 0x4004.8000
Address 0x17
Type R/W, reset 0x0010
July 25, 2008
Bit/Field
15:8
7:4
3:0
RO
15
0
Register 28: Ethernet PHY Management Register 23 – LED Configuration
(MR23), address 0x17
This register enables software to select the source that causes the LEDs to toggle.
RO
14
0
LED1[3:0]
LED0[3:0]
reserved
RO
13
0
Name
RO
12
0
reserved
RO
11
0
Type
R/W
R/W
RO
RO
10
0
Reset
0x0
RO
9
0
1
0
Preliminary
RO
8
0
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.
LED1 Source
The LED1 field selects the source that toggles the LED1 signal.
LED0 Source
The LED0 field selects the source that toggles the LED0 signal.
Value
0x0
0x1
0x2
0x3
0x4
0x5
0x6
0x7
0x8
Value
0x0
0x1
0x2
0x3
0x4
0x5
0x6
0x7
0x8
R/W
Description
Link OK
RX or TX Activity (Default LED1)
Reserved
Reserved
Reserved
100BASE-TX mode
10BASE-T mode
Full-Duplex
Link OK & Blink=RX or TX Activity
Description
Link OK (Default LED0)
RX or TX Activity
Reserved
Reserved
Reserved
100BASE-TX mode
10BASE-T mode
Full-Duplex
Link OK & Blink=RX or TX Activity
7
0
R/W
6
0
LED1[3:0]
R/W
5
0
R/W
4
1
LM3S6950 Microcontroller
R/W
3
0
R/W
2
0
LED0[3:0]
R/W
1
0
R/W
0
0
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