LM3S6422 Luminary Micro, Inc, LM3S6422 Datasheet - Page 394
LM3S6422
Manufacturer Part Number
LM3S6422
Description
Lm3s6422 Arm Microcontroller
Manufacturer
Luminary Micro, Inc
Datasheet
1.LM3S6422.pdf
(473 pages)
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Reset
Type
Ethernet Controller
Ethernet PHY Management Register 19 – Transceiver Control (MR19)
Base 0x4004.8000
Address 0x13
Type R/W, reset 0x4000
394
Bit/Field
15:14
13:0
R/W
15
0
TXO[1:0]
R/W
Register 26: Ethernet PHY Management Register 19 – Transceiver Control
(MR19), address 0x13
This register enables software to set the gain of the transmit output to compensate for transformer
loss.
14
1
TXO[1:0]
reserved
RO
13
0
Name
RO
12
0
RO
11
0
Type
R/W
RO
RO
10
0
Reset
0x0
RO
9
0
1
Preliminary
RO
8
0
Description
Transmit Amplitude Selection
The TXO[1:0] field sets the transmit output amplitude to account for
transmit transformer insertion loss.
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.
Value
0x0
0x1
0x2
0x3
RO
Description
Gain set for 0.0dB of insertion loss
Gain set for 0.4dB of insertion loss
Gain set for 0.8dB of insertion loss
Gain set for 1.2dB of insertion loss
7
0
reserved
RO
6
0
RO
5
0
RO
4
0
RO
3
0
RO
2
0
July 25, 2008
RO
1
0
RO
0
0
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