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High-Power, Quad, Monolithic, PSE Controllers
for Power over Ethernet
______________________________________________________________________________________   41
Table 30. Miscellaneous Configurations 2
ADDRESS = 29h
SYMBOL
BIT
R/W
DESCRIPTION
7

Reserved
6

Reserved
5

Reserved
4

Reserved
Reserved
3

Reserved
LSC_EN
2

LSC_EN
1
R/W
IVEE[1]
IVEE
0
R/W
IVEE[0]
Table 31. Current-Limit Scaling Register
IVEE[1:0]
(ADDRESS = 29h)
CURRENT LIMIT
(%)
00
Default
01
-5
10
-10
11
-15
Table 29. High-Power Mode Register
ADDRESS = 24h
SYMBOL
BIT
R/W
DESCRIPTION
Reserved
7

Reserved
6
R/W
HP[2]
5
R/W
HP[1]
HP
4
R/W
HP[0]
3

Reserved
2

Reserved
1

Reserved
Reserved
0

Reserved
HP[2:0] programs the default power setting that is writ-
ten upon the discovery of a class 4, 5, or 6 PD. A reset
or power-up sets R24h = 00h.
The IVEE bits enable the current-limit scaling (Table
30). This feature is used to reduce the current limit for
systems running at higher voltage to maintain the
desired output power. Table 31 sets the current-limit
scaling register. A reset or power-up sets R29h = 00h.
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