LM3S6G11 Datasheet, PDF (694/827 Pages) Texas Instruments – Stellaris® LM3S6G11 Microcontroller

Ethernet Controller
OBSOLETE: TI has discontinued production of this device.
Register 15: Ethernet MAC LED Encoding (MACLED), offset 0x040
This register enables software to select the source that causes the LED1 and LED0 signal to toggle.
Ethernet MAC LED Encoding (MACLED)
Base 0x4004.8000
Offset 0x040
Type R/W, reset 0x0000.0100
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
reserved
Type RO
RO
RO
RO
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
15
Type RO
Reset
0
14
13
reserved
RO
RO
0
0
12
11
10
9
8
7
LED1
RO
R/W
R/W
R/W
R/W
RO
0
0
0
0
1
0
6
5
reserved
RO
RO
0
0
4
3
2
1
0
LED0
RO
R/W
R/W
R/W
R/W
0
0
0
0
0
Bit/Field
31:12
11:8
Name
reserved
LED1
Type
RO
R/W
Reset
0
0x1
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.
Value Description
0x0 Link OK
0x1 RX or TX Activity (Default LED1)
Note that when RX or TX activity stops, the LED output is
extended by 128 ms.
0x2-0x4 Reserved
0x5 100BASE-TX mode
0x6 10BASE-T mode
0x7 Full-Duplex
0x8 Link OK & Blink=RX or TX Activity
0x9-0xF Reserved
7:4
reserved
RO
0x0
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.
694
July 24, 2012
Texas Instruments-Production Data