88e3015 Marvell Semiconductor, Inc., 88e3015 Datasheet - Page 83

• Manufacturer Part Number: 88e3015
• Description: Integrated 10/100 Fast Ethernet Transceiver
• Manufacturer: Marvell Semiconductor, Inc.

Table 53:
Copyright © 2006 Marvell
October 26, 2006, Advance
B i ts
15:12
11:10
9:5
4
3
2
1
0
F i e l d
Reserved
MAC Interface
Mode
Reserved
EnLineLpbk
SoftwareMedia
Select
TDRWaitTime
EnRXCLK
SelClsA
Register 28
PHY Specific Control Register II
M o d e
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Document Classification: Proprietary Information
H W
R s t
0x0
See
Desc.
0x00
0x0
See
Desc.
0x0
0x1
0x0
CONFIDENTIAL
S W
R s t
Retain
Update
Update
Retain
Update
Retain
Update
Update
D e s c r i p t io n
Must be 0000
During Hardware Reset register 28.11:10 defaults as fol-
lows
MODE[2:0] 28.11:10
000
001
010
011
100
110
111
00 = RGMII where receive clock transition when
01 = RGMII where receive clock transition when
10 = Non-Source Synchronous MII
11 = Source Synchronous MII
Set to 00000
0 = Disable Line Loopback
1 = Enable Line Loopback
During Hardware Reset register 28.3 defaults as follows
MODE[2:0] 28.3
000
001
010
011
100
110
111
0 = Select Copper Media
1 = Select Fiber Media
0 = Wait time is 1.5s before TDR test is started
1 = Wait time is 25 ms before TDR test is started
0 = Disable MAC interface clock (RXCLK) in sleep mode
1 = Enable MAC interface clock (RXCLK) in sleep mode
0 = Select Class B driver (typically used in CAT 5 appli-
1 = Select Class A driver - available for 100BASE-TX
cations)
mode only (typically used in Backplane or direct
connect applications, but may be used with CAT 5
applications)
data transitions
data stable
01
1
10
11
0
0
00
01
00
10
0
0
1
1
Doc. No. MV-S103657-00, Rev. C
Page 83