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88E1112 Datasheet
Integrated 10/100/1000
Gigabit Ethernet Transceiver
Doc. No. MV-S101384-00, Rev. B
January 27, 2005
No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose, without the express
written permission of Marvell. Marvell retains the right to make changes to this document at any time, without notice. Marvell makes no warranty of any kind, expressed or implied, with regard
to any information contained in this document, including, but not limited to, the implied warranties of merchantability or fitness for any particular purpose. Further, Marvell does not warrant the
accuracy or completeness of the information, text, graphics, or other items contained within this document.
Marvell products are not designed for use in life-support equipment or applications that would cause a life-threatening situation if any such products failed. Do not use Marvell products in these
types of equipment or applications.
Marvell assumes no responsibility, either for use of these products or for any infringements of patents and trademarks, or other rights of third parties resulting from its use. No license is granted
under any patents, patent rights, or trademarks of Marvell.
These products may include one or more optional functions. The user has the choice of implementing any particular optional function. Should the user choose to implement any of these optional
functions, it is possible that the use could be subject to third party intellectual property rights. Marvell recommends that the user investigate whether third party intellectual property rights are
relevant to the intended use of these products and obtain licenses as appropriate under relevant intellectual property rights.
With respect to the products described herein, the user or recipient, in the absence of appropriate U.S. government authorization, agrees:
1) Not to re-export or release any such information consisting of technology, software or source code controlled for national security reasons by the U.S. Export Control Regulations ("EAR"),
to a national of EAR Country Groups D:1 or E:2;
2) Not to export the direct product of such technology or such software, to EAR Country Groups D:1 or E:2, if such technology or software and direct products thereof are controlled for national
security reasons by the EAR; and,
3) In the case of technology controlled for national security reasons under the EAR where the direct product of the technology is a complete plant or component of a plant, not to export to EAR
Country Groups D:1 or E:2 the direct product of the plant or major component thereof, if such direct product is controlled for national security reasons by the EAR, or is subject to controls under
the U.S. Munitions List ("USML").
At all times hereunder, the recipient of any such information agrees that they shall be deemed to have manually signed this document in connection with their receipt of any such information.
Copyright © 2005. Marvell International Ltd. All rights reserved. Marvell, the Marvell logo, Moving Forward Faster, Alaska, Fastwriter, GalNet, Libertas, Link Street, NetGX, PHYAdvantage,
Prestera, Virtual Cable Tester, and Yukon are registered trademarks of Marvell. AnyVoltage, Discovery, DSP Switcher, Feroceon, GalTis, Horizon, RADLAN, Raising The Technology Bar, The
Technology Within, UniMAC, and VCT are trademarks of Marvell. All other trademarks are the property of their respective owners.
Doc. No. MV-S101384-00 Rev. B
CONFIDENTIAL
Copyright © 2005 Marvell
Page 2 Document Classification: Proprietary Information January 27, 2005, Advance
Document Status
Advance
Information
This document contains design specifications for initial product development. Specifications may change
without notice. Contact Marvell Field Application Engineers for more information.
Preliminary
Information
This document contains preliminary data, and a revision of this document will be published at a later date.
Specifications may change without notice. Contact Marvell Field Application Engineers for more information.
Final
Information
This document contains specifications on a product that is in final release. Specifications may change without
notice. Contact Marvell Field Application Engineers for more information.
Revision Code: Rev. B
Advance Technical Publication: 1.00
Integrated 10/100/1000 Gigabit Ethernet Transceiver
88E1112
Copyright © 2005 Marvell
CONFIDENTIAL
Doc. No. MV-S101384-00, Rev. B
January 27, 2005, Advance Document Classification: Proprietary Information Page 3
Features
• 10/100/1000BASE-T IEEE 802.3 compliant
• Supports Serial Gigabit Media Independent Interface
(SGMII)
• Integrated 1.25 GHz SERDES for 1000BASE-X fiber
applications
• Integrated 125 MHz SERDES for 100BASE-FX fiber
applications
• SGMII to SERDES mode supported
• SGMII to SGMII bridging supported
• Supports tri-speed GBIC/SFP applications
• Media Detection™ mode for copper and fiber support
• Integrated Virtual Cable Tester™ (VCT™) cable diag-
nostic feature
• 2-pair downshift feature
• Auto-MDI/MDIX feature when link partner Auto-Negoti-
ation enabled or disabled
• Advanced diagnostics: CRC error checker, packet
counter, pattern generator
• EEPROM support for PHY configuration
• Selectable MDC/MDIO interface or Two-Wire Serial
Interface
• Fully integrated digital adaptive equalizers, echo can-
cellers, and crosstalk cancellers
• Advanced digital baseline wander correction
• Automatic polarity correction
• IEEE 802.3u compliant Auto-Negotiation
• Requires only two supplies: 2.5V and 1.2V
• Very low power dissipation P
AVE
= 0.75W
• Manufactured in a 64-Pin QFN, 9X9 mm package
Overview
The Alaska 88E1112 Gigabit Ethernet Transceiver
is a physical layer device for Ethernet 1000BASE-T,
100BASE-TX, and 10BASE-T applications. It is
manufactured using standard digital CMOS process
and contains all the active circuitry required to
implement the physical layer functions to transmit
and receive data on standard CAT 5 unshielded
twisted pair.
The Alaska 88E1112 device supports the Serial
Gigabit Media Independent Interface (SGMII) for
direct connection to a MAC/Switch port. The
88E1112 device incorporates an additional 1.25
GHz SERDES (Serializer/Deserializer) which may
be connected directly to a fiber-optic transceiver for
1000BASE-X applications. The SERDES is switch-
able to support 125 MHz operation for 100BASE-
FX applications. Additionally, the 88E1112 device
may be used to implement 10/100/1000BASE-T
Gigabit Interface Converter (GBIC) or Small Form
Factor Pluggable (SFP) modules.
The 88E1112 device uses advanced mixed-signal
processing to perform equalization, echo and
crosstalk cancellation, data recovery, and error cor-
rection at a gigabit per second data rate. The
device achieves robust performance in noisy envi-
ronments with very low power dissipation.
88E1112
Integrated 10/100/1000 Gigabit Ethernet Transceiver
Doc. No. MV-S101384-00, Rev. B
CONFIDENTIAL
Copyright © 2005 Marvell
Page 4 Document Classification: Proprietary Information January 27, 2005, Advance
Alaska 88E1112 used in Copper Applications
Alaska 88E1112 used in Media Detect ™ Applications (SERDES)
Alaska 88E1112 used in Media Detect ™ Applications (SGMII)
Alaska 88E1112 used in 1000BASE-T GBIC/ SFP Applications
Alaska 88E1112 used in Traditional 100BASE-FX Applications
T
r
a
n
s
f
o
r
m
e
r
RJ45
Media Type:
- 1000BASE-T
- 100BASE-TX
- 10BASE-T
Alaska
TM
88E1112
MAC Interface
- SGMII
10/100/1000 Mbps
Ethernet MAC
Alaska
TM
88E1112
Fiber
Optics
10/100/1000 Mbps
Ethernet MAC
Media Types:
- 1000BASE-X
MAC Interface
- SGMII
M
A
G
RJ45
Media Type:
- 1000BASE-T
- 100BASE-TX
- 10BASE-T
OR
SERDES
Alaska
TM
88E1112
SFP
Interface
10/100/1000 Mbps
Ethernet MAC
SGMII
MAC Interface
- SGMII
M
A
G
RJ-45
Media Type:
- 1000BASE-T
- 100BASE-TX
- 10BASE-T
Media Type:
- 1000BASE-X
- 100BASE-FX
- 10/100/1000 BASE-T
T
r
a
n
s
f
o
r
m
e
r
RJ45
Alaska
TM
88E1112
SERDES
SERDES
1000 Mbps only
Ethernet MAC
GBIC/SFP Card
GBIC/SFP
Interface
SERDES
Switch Board
Media Type:
- 1000BASE-T
TBI
Optional
EEPROM
Alaska
TM
88E1112
100BASE-FX
Fiber
Transceiver
10/100/1000 Mbps
Ethernet MAC
MAC Interface
- 6 pin SGMII
- 4 pin SGMII
Media Type:
- 100BASE-FX
SGMII Clock
4
4
2
SGMII Data
4B/5B 125 MHz
100BASE-FX
Interface
Copyright © 2005 Marvell
CONFIDENTIAL
Doc. No. MV-S101384-00, Rev. B
January 27, 2005, Advance Document Classification: Proprietary Information Page 5
88E1112
Integrated 10/100/1000 Gigabit Ethernet Transceiver
Alaska 88E1112 used in 10/100/1000BASE-T tri-speed GBIC/SFP Applications
Alaska 88E1112 used in 100BASE-FX GBIC/SFP Applications
Alaska 88E1112 used in Media Converter Applications
Alaska 88E1112 used in 4-pin SGMII to 6-pin SGMII Conversions
T
r
a
n
s
f
o
r
m
e
r
RJ45
Alaska
TM
88E1112
SGMII
10/100/1000 Mbps
Ethernet MAC
GBIC/SFP Card
GBIC/SFP
Interface
SGMII
Switch Board
Media Type:
- 1000BASE-T
- 100BASE-TX
- 10BASE-T
Optional
EEPROM
88E1112
SGMII
Interface
MAC
GBIC/SFP Card
GBIC/SFP
Interface
SGMII
Switch Board
Media Type:
- 100BASE-FX
Optical
Components
T
r
a
n
s
f
o
r
m
e
r
RJ45
Media Type:
- 1000BASE-T
Alaska
TM
88E1112
SERDES
Fiber
Transceiver
Alaska
TM
88E1112
SFP
Interface
10/100/1000 Mbps
Ethernet MAC
MAC Interface
- 6 pin SGMII
- 4 pin SGMII
Media Type:
- 1000BASE-X
- 100BASE-FX
- 10/100/1000 BASE-T
SGMII Clock
4
4
2
SGMII Data
SGMII Data
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