Marvell 88E3015 Manual page 70

88E3015/88E3018
Integrated 10/100 Fast Ethernet Transceiver
Table 42: PHY Specific Control Register
Register 16
B i ts F i el d
15 Reserved
14 EDet
13 DisNLP Check
12 Reg8NxtPg
11 DisNLPGen
10 Reserved
9 DisScrambler
8 DisFEFI
Doc. No. MV-S103657-00, Rev. D
Page 70
M o d e H W S W
R s t R s t
R/W 0x0 Retain
R/W 0x0 Retain
R/W 0x0 0x0
R/W 0x0 0x0
R/W 0x0 0x0
R/W 0x0 0x0
R/W 0x0 Retain
R/W 0x1 Retain
Document Classification: Proprietary Information
D e s c r i p t io n
Energy Detect
0 = Disable
1 = Enable with sense and pulse
Enable with sense only is not supported
Disable Normal Linkpulse Check
Linkpulse check and generation disable have no effect,
if Auto-Negotiation is enabled locally.
0 = Enable linkpulse check
1 = Disable linkpulse check
Enable the Link Partner Next Page register to store Next
Page.
If set to store next page in the Link Partner Next Page
register (register 8), then 802.3u is violated to emulate
802.3ab.
0 = Store next page in the Link Partner Ability Register
(Base Page) register (register 5).
1 = Store next page in the Link Partner Next Page regis-
ter.
Disable Linkpulse Generation.
Linkpulse check and generation disable have no effect,
when Auto-Negotiation is enabled locally.
0 = Enable linkpulse generation
1 = Disable linkpulse generation
Set to 0
Disable Scrambler
If either 100BASE-FX or 10BASE-T forced mode is
selected, then the scrambler is disabled at hardware
reset. However, when 100BASE-TX is selected, this reg-
ister bit equals 0.
0 = Enable scrambler
1 = Disable scrambler
Disable FEFI
FEFI is automatically disabled regardless of the state of
this bit if copper mode is selected.
0 = Enable FEFI
1 = Disable FEFI
Copyright © 2008 Marvell
January 4, 2008, Advance