88e3015 Marvell Semiconductor, Inc., 88e3015 Datasheet - Page 85

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

Table 56:
Copyright © 2006 Marvell
October 26, 2006, Advance
B i ts
15
14
13
12:8
7
6
5
4:0
F i e l d
Restart Calibra-
tion
Calibration
Complete
Reserved
PMOS Value
Reserved
LATCH
PMOS/NMOS
Select
NMOS value
Register 30_10
MAC Interface Output Impedance Calibration Override
M o d e
R/W,
SC
RO
R/W
R/W
RW
R/W,
SC
R/W
R/W
Document Classification: Proprietary Information
H W
R s t
0x0
0x0
0x0
See
Descr
0x0
0x0
0x0
See
Descr
CONFIDENTIAL
S W
R s t
Retain
Retain
Retain
Retain
Retain
Retain
Retain
Retain
D e s c r i p t io n
Calibration will start once bit 15 is set to 1.
0 = Normal
1 = Restart
Calibration is done once bit 14 becomes 1.
0 = Not done
1 = Done
0
00000 = all fingers off
11111 = all fingers on
The automatic calibrated values are stored here after
calibration completes.
Once LATCH is set to 1 the new calibration value is writ-
ten into the I/O pad. The automatic calibrated value is
lost.
0
1 = Latch in new value. This bit self clears.
(Used for manual settings)
0 = NMOS value written when LATCH is set to 1.
1 = PMOS value written when LATCH is set to 1.
00000 = All fingers off
11111 = All fingers on
The automatic calibrated values are stored here after
calibration completes.
Once LATCH is set to 1 the new calibration value is writ-
ten into the I/O pad. The automatic calibrated value is
lost.
Doc. No. MV-S103657-00, Rev. C
Page 85