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88E1040S

产品描述Alaska㈢ Quad Gigabit Ethernet Transceivers
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88E1040S概述

Alaska㈢ Quad Gigabit Ethernet Transceivers

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Transceiver
Solutions
Alaska
®
Quad
Gigabit Ethernet Transceivers
88E1040/S, 88E1041/S, 88E1042H
PRODUCT OVERVIEW
The Marvell
¨
Alaska
¨
family of Gigabit Ethernet (GbE) over copper transceivers are the industryÕs lowest power,
smallest form factor, highest performance, and highest port density solutions in volume production. Targeted
at high-density GbE switches, the Alaska Quad transceivers are single-chip devices containing four independent
GbE PHYs on a single monolithic IC. Each transceiver performs all of the physical layer functions for 100BASE-TX
and 1000BASE-T full or half duplex Ethernet on category 5 (CAT 5) twisted pair cable, and 10BASE-T full or half
duplex Ethernet on CAT 3, 4 and 5 cable. The Alaska Quad devices (88E1040S, 88E1041S and 88E1042H) offer
additional support of 1000BASE-X through an integrated 1.25 GHz Serializer/Deserializer (SERDES).
Waveshape
Filter
10/100/1000
Transmit PCS
Trellis
Decoder
Decision
Feedback
Equalizer
Fiber Channel
Transmit
P0_TX_EN
P0_TX_ER
P0_TXD[7:0]
P0_GTX_CLK
P0_TX_CLK
P0_S_IN+/-
P0_S_CLK+/-
P0_S_OUT+/-
P0_RX_DV
P0_RX_ER
P0_RXD[7:0]
P0_RX_CLK
P0_CRS
P0_COL
XTAL1
XTAL2
RESET#
125CLK
D/A
P0-MDI[3:0]+/-
Echo
Canceller
Timing
Control
Near End
Crosstalk
Canceller
Feed
Forward
Equalizer
(parts with ÒSÓ or
ÒHÓ option only)
Active Hybrid
Gain Control
Baseline
10BASE-T
Receiver
P0_MDC
P0_MDIO
P0_INT#
P0_RSET
P0_HSDAC+/-
P0_TSTPT
A/D
DPLL
Registers
Auto-Negotiation
Skew
Control
10/100/1000
Receive PCS
JTAG
TRST#
TCK
TDI
TMS
TDO
Management
Interface
Bias/Test
LED/
Configuration
P0_LED_LINK10
P0_LED_LINK100
P0_LED_LINK1000
P0_LED_DUPLEX
P0_LED_RX
P0_LED_TX
GCONFIG[0]
Clock/Reset
Fig 1. Alaska Quad GbE Transceiver Block Diagram
FEATURES
¥
Highly integrated 4-port device
¥
Ultra low power, just exceeding 1W/port
¥
10/100/1000BASE-T IEEE 802.3 compliant
¥
Supports GMII/RGMII/TBI/RTBI interfaces
¥
Virtual Cable Tester
TM
feature
¥
Integrated 1.25 GHz SERDES (881040S, 88E1041S, 88E1042H)
¥
Media Detect feature automatically detects and configures to either
copper or fiber media
¥
Automatic support for 2-pair CAT 5 cable (100 Mbps)
¥
Power management modes
¥
Four RGMII timing modes
¥
User configurable independent Media Access Controller (MAC)
interface select
BENEFITS
¥
Enables highly integrated Gigabit switches
¥
Enables higher integration and reduced cost
¥
Compatibility with existing installed base of compliant devices
¥
Reduces cost and simplifies PCB layout
¥
Remote cable diagnostics for fault detection
¥
Supports 1000BASE-X fiber applications
¥
Complete media flexibility
¥
¥
¥
¥
Operates over installed 2-pair cable
Reduced system power
Eliminate the need for on-board delay lines
Allows interface flexibility

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