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參數資料
| 型號： | 80225 |
| 廠商： | LSI Corporation |
| 英文描述： | 10/100 MbpsTX/10BT Ethernet Physical Layer Device (PHY)(10/100 MbpsTX/10BT以太網物理層處理器) |
| 中文描述： | 10/100 MbpsTX/10BT以太網物理層器件（PHY）（10/100 MbpsTX/10BT以太網物理層處理器） |
| 文件頁數： | 1/69頁 |
| 文件大?。?/td> | 716K |
| 代理商： | 80225 |
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80225
4-1
MD400182/A
10/100 MbpsTX/10BT
Ethernet Physical Layer Device (PHY)
Features
I
Single Chip 100Base-TX /10Base-T
Physical Layer Solution
I
3.3V Version of SEEQ 80221
I
Dual Speed - 10/100 Mbps
I
Half And Full Duplex
I
MII Interface To Ethernet Controller
I
MI Interface For Configuration & Status
I
Optional Repeater Interface
I
AutoNegotiation: 10/100, Full/Half Duplex
I
Meets All Applicable IEEE 802.3 Standards
I
Advertisement Control Through Pins
I
On Chip Wave Shaping - No External Filters
Required
I
Adaptive Equalizer
I
Baseline Wander Correction
I
LED Outputs
- Link
- Activity
- Collision
- Full Duplex
- 10/100
I
Many User Features And Options
I
Few External Components
I
3.3V Supply with 5V Tolerant I/O
I
44 PLCC
99025
Description
The 80225 is a highly integrated analog interface IC for
twisted pair Ethernet applications. The 80225 can be
configured for either (100Base-TX) or 10 Mbps (10Base-
T) Ethernet operation.
The 80225 consist of 4B5B/Manchester encoder/decoder,
scrambler/descrambler, transmitter with wave shaping
and output driver, twisted pair receiver with on chip equal-
izer and baseline wander correction, clock and data recov-
ery, AutoNegotiation, controller interface (MII), and serial
port (MI).
The addition of internal output waveshaping circuitry and
on-chip filters eliminates the need for external filters nor-
mally required n 100Base-TX and 10Base-T applications.
The 80225 can automatically configure itself for 100 or 10
Mbps and Full or Half Duplex operation with the on-chip
AutoNegotiation algorithm.
The 80225 can access six 16-bit registers though the
Management Interface (MI) serial port. These registers
contain configuration inputs, status outputs, and device
capabilities.
The 80225 is ideal as a media interface for 100Base-TX/
10Base-T adapter cards, motherboards, repeaters, switch-
ing hubs, and external PHY's.
The 80225 operates from a single 3.3V supply. All inputs
and outputs are 5V tolerant and will directly interface to
other 5V devices.
Note: Check for latest Data Sheet revision
before starting any designs.
SEEQ Data Sheets are now on the Web, at
www.lsilogic.com.
This document is an LSI Logic document. Any
reference to SEEQ Technology should be
considered LSI Logic.
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