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| 型號(hào)： | 1893YI-10 |
| 廠(chǎng)商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類(lèi)： | 網(wǎng)絡(luò)接口 |
| 英文描述： | DATACOM, INTERFACE CIRCUIT, PQFP64 |
| 封裝： | 10 X 10 MM, TQFP-64 |
| 文件頁(yè)數(shù)： | 70/152頁(yè) |
| 文件大?。?/td> | 943K |
| 代理商： | 1893YI-10 |
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ICS1893 Rev C 6/6/00
June, 2000
24
Chapter 5
Operating Modes Overview
ICS1893 Data Sheet - Release
Copyright 2000, Integrated Circuit Systems, Inc.
All rights reserved.
5.5
100Base-TX Operations
The ICS1893 100Base-TX mode provides 100Base-TX physical layer (PHY) services as defined in the
ISO/IEC 8802-3 standard. In the 100Base-TX mode, the ICS1893 is a 100M translator between a
MAC/repeater and the physical transmission medium. As such, the ICS1893 has two interfaces, both of
which are fully configurable: one to the MAC/repeater and one to the Link Segment. In 100Base-TX mode,
the ICS1893 provides the following functions:
Data conversion from both parallel-to-serial and serial-to-parallel formats
Data encoding/decoding (4B/5B, NRZ/NRZI, and MLT-3)
Data scrambling/descrambling
Data transmission/reception over a twisted-pair medium
To accurately transmit and receive data, the ICS1893 employs DSP-based wave shaping, adaptive
equalization, and baseline wander correction. In addition, in 100Base-TX mode, the ICS1893 provides a
variety of control and status means to assist with Link Segment management. For more information on
100Base-TX, see Section 7.4, “Functional Block: 100Base-TX TP-PMD Operations”.
5.6
10Base-T Operations
The ICS1893 10Base-T mode provides 10Base-T physical layer (PHY) services as defined in the ISO/IEC
8802-3 standard. In the 10Base-T mode, the ICS1893 is a 10M translator between a MAC/repeater and the
physical transmission medium. As such, the ICS1893 has two interfaces, both of which are fully
configurable: one to the MAC/repeater and one to the Link Segment. In 10Base-T mode, the ICS1893
provides the following functions:
Data conversion from both parallel-to-serial and serial-to-parallel formats
Manchester data encoding/decoding
Data transmission/reception over a twisted-pair medium
In addition, in 10Base-T mode, the ICS1893 provides a variety of control and status means to assist with
Link Segment management. For more information on 10Base-T, see Section 7.5, “Functional Block:
10Base-T Operations”.
5.7
Half-Duplex and Full-Duplex Operations
The ICS1893 supports half-duplex and full-duplex operations for both 10Base-T and 100Base-TX
applications. Full-duplex operation allows simultaneous transmission and reception of data, which
effectively doubles the Link Segment throughput to either 20 Mbps (for 10Base-T operations) or 200 Mbps
(for 100Base-TX operations).
As per the ISO/IEC standard, full-duplex operations differ slightly from half-duplex operations. These
differences are necessary, as during full-duplex operations a PHY actively uses both its transmit and
receive data paths simultaneously.
In 10Base-T full-duplex operations, the ICS1893 disables its loopback function (that is, it does not
automatically loop back data from its transmitter to its receiver) and disables its SQE Test function.
In both 10Base-T and 100Base-TX full-duplex operations, the ICS1893 asserts its CRS signal only in
response to receive activity while its COL signal always remains inactive.
For more information on half-duplex and full-duplex operations, see the following sections:
Section 8.2, “Register 0: Control Register”
Section 8.2.8, “Duplex Mode (bit 0.8)”
Section 8.3, “Register 1: Status Register”
Section 8.6, “Register 4: Auto-Negotiation Register”
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| 1894-40KLF | DATACOM, INTERFACE CIRCUIT, QCC40 |
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| 1893YI-10LF | 功能描述:以太網(wǎng) IC 3.3V 10/100 BASE TX INTEGRATED PHYCEIVER RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray |
| 1893YI-10LFT | 功能描述:以太網(wǎng) IC 3.3V 10/100 BASE TX INTEGRATED PHYCEIVER RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray |
| 1894 | 功能描述:支架與墊片 HEX .187X.625 ALUM RoHS:否 制造商:Schurter 類(lèi)型:Transipillar Spacers 長(zhǎng)度:16 m 螺紋大小:M4 外徑:10 mm 材料:Nylon with Steel 電鍍:Zinc |
| 1894# | 制造商:Fluke Electronics 功能描述:BNC (F)/BANANA PLUG 制造商:Pomona Electronics 功能描述: |
| 1894 | 制造商:Pomona Electronics 功能描述:ADAPTER BNC FEMALE-BANANA PLUG 制造商:Pomona Electronics 功能描述:ADAPTER, BNC FEMALE-BANANA PLUG |
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