- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377598 > L64381 (LSI Corporation) 4-Port Ethernet Controller(四端口以太網(wǎng)控制器) PDF資料下載
參數(shù)資料
| 型號： | L64381 |
| 廠商： | LSI Corporation |
| 英文描述： | 4-Port Ethernet Controller(四端口以太網(wǎng)控制器) |
| 中文描述： | 4端口以太網(wǎng)控制器（四端口以太網(wǎng)控制器） |
| 文件頁數(shù)： | 45/109頁 |
| 文件大?。?/td> | 815K |
| 代理商： | L64381 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁當前第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁
Bus Interface Signals
3-5
PREEP[3:0]
Positive Preemphasis
The ports transmit positive preemphasis on these out-
puts. These outputs are used in twisted-pair mode only
and control the positive preemphasis output. The
purpose of PREEP is to increase the amplitude of the
higher frequencies in the output signal. Data
preemphasis guarantees that twisted-pair mode can drive
signals properly at 10 Mbit/s on cable up to 100 meters
long. These signals are resistively combined: DATAP with
PREEP and DATAN with PREEN. The technique of
resistively combining the signals is known as digital
preemphasis.
Output
TP/AUI[3:0]
Twisted-Pair/AUI Select
These signals determine whether the specific port [3:0] is
in AUI mode or in twisted-pair mode. A LOW on one of
these signals indicates that the corresponding port is in
AUI mode; a HIGH indicates that the corresponding port
is in twisted-pair mode. The following table lists the
principal differences between these two modes.
Input
3.2
Bus Interface
Signals
This section describes the signals that comprise the L64381’s Bus
Interface.
ABORT_IN
Abort In
The system uses the ABORT_IN signal to indicate that
the L64381 should ignore the current bus transfer and
restore the internal FIFO pointers to their value before the
current bus transfer began. In effect, it is as if the current
bus transfer did not happen. Assertion of ABORT_IN
does not cause any action on the network side.
Input
Feature
Twisted
Pair
AUI
SQE Test (heartbeat)
Link Pulse Detection
Link Pulse Polarity Detection and
Correction
Link Integrity Pulses Generated
Collision Pair Pins (COLLIP, COLLIN)
are Used
Cause of Transmit Carrier Loopback
Error
No
Yes
Yes
Yes
No
No
Yes
No
No
Yes
Link Fail
No Carrier
Loopback
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L64388 | A General-Purpose,High-Performance Remote Access Communications Processor(通用的、高性能、遠程訪問通信處理器) |
| L64704 | Satellite Decoder Which Contains A BPSK/QPSK Demodulator And A Concatenated FEC Decoder(衛(wèi)星信號譯碼器（包含BPSK/QPSK 解調(diào)器和FEC解碼器）) |
| L64724 | Satellite Receiver(衛(wèi)星信號接收器（包含BPSK/QPSK 解調(diào)器和FEC解碼器）) |
| L64734 | Tuner and Satellite Receiver Chipset |
| L64767 | SMATV（Satellite Master Antenna Television） QAM Encoder(衛(wèi)星主天線電視正交振幅調(diào)制編碼器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L64388 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:L64388 Remote Access Processor (RAP) Chip data sheet/5/98 |
| L64388VG | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Communications Controller |
| L-643ED | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2.37 x 4.88 x 8.6mm TOMBSTONE TYPE LED LAMP |
| L643F | 制造商:CRYDOM 制造商全稱:Crydom Inc., 功能描述:Power Modules |
| L-643GD | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2.37 x 4.88 x 8.6mm TOMBSTONE TYPE LED LAMP |
發(fā)布緊急采購，3分鐘左右您將得到回復。