- 您現在的位置：買賣IC網 > PDF目錄376727 > DJLXT972MPEA4 (Intel Corp.) Single-Port 10/100 Mbps PHY Transceiver PDF資料下載
參數資料
| 型號： | DJLXT972MPEA4 |
| 廠商： | Intel Corp. |
| 英文描述： | Single-Port 10/100 Mbps PHY Transceiver |
| 中文描述： | 單端口10/100 Mbps的物理層收發器 |
| 文件頁數： | 24/92頁 |
| 文件大小： | 666K |
| 代理商： | DJLXT972MPEA4 |
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頁當前第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
Intel
LXT972M Single-Port 10/100 Mbps PHY Transceiver
24
Datasheet
Document Number: 302875-005
Revision Date: 27-Oct-2005
5.2.1.1
Twisted-Pair Interface
The LXT972M Transceiver supports either 100BASE-TX or 10BASE-T connections over 100
Ω,
Category
5,
Unshielded Twisted Pair (UTP) cable. When operating at 100 Mbps, the LXT972M
Transceiver continuously transmits and receives MLT3 symbols. When not transmitting data, the
LXT972M Transceiver generates “IDLE” symbols.
During 10 Mbps operation, Manchester-encoded data is exchanged. When no data is being
exchanged, the line is left in an idle state. Link pulses are transmitted periodically to keep the link
up.
Only a transformer, RJ-45 connector, load resistor, and bypass capacitors are required to complete
this interface. On the transmit side, the LXT972M Transceiver has an active internal termination
and does not require external termination resistors. Intel's patented waveshaping technology shapes
the outgoing signal to help reduce the need for external EMI filters. Four slew rate settings allow
the designer to match the output waveform to the magnetic characteristics. On the receive side, the
internal impedance is high enough that it has no practical effect on the external termination circuit.
(For the slew rate settings, see
Table 56, “Transmit Control Register - Address 30, Hex 1E” on
page 89
.)
Note:
On the LXT972M Transceiver, MDIX crossover (MDIX) is supported by board design.
5.2.1.2
Remote Fault Detection and Reporting
The LXT972M Transceiver supports the remote fault detection and reporting mechanisms.
“Remote Fault” refers to a MAC-to-MAC communication function that is transparent to PHY layer
devices. It is used only during auto-negotiation, and is applicable only to twisted-pair links.
Remote Fault Detection.
Register bit 4.13 in the Auto-Negotiation Advertisement Register is
reserved for Remote Fault indications. It is typically used when re-starting the auto-negotiation
sequence to indicate to the link partner that the link is down because the advertising device
detected a local fault.
When the LXT972M Transceiver receives a Remote Fault indication from its partner during auto-
negotiation, the following occurs:
Register bit 5.13 in the Link Partner Base Page Ability Register is set.
Remote Fault Register bit 1.4 in the MII Status Register is set to pass this information to the
local controller.
相關PDF資料 |
PDF描述 |
|---|---|
| DJLXT972MQAA4 | Single-Port 10/100 Mbps PHY Transceiver |
| DJLXT972MQCA4 | Single-Port 10/100 Mbps PHY Transceiver |
| DJLXT972MQEA4 | Single-Port 10/100 Mbps PHY Transceiver |
| DJLXT972MTAA4 | Single-Port 10/100 Mbps PHY Transceiver |
| DJLXT972MTCA4 | Single-Port 10/100 Mbps PHY Transceiver |
相關代理商/技術參數 |
參數描述 |
|---|---|
| DJLXT972MQAA4 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Single-Port 10/100 Mbps PHY Transceiver |
| DJLXT972MQCA4 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Single-Port 10/100 Mbps PHY Transceiver |
| DJLXT972MQEA4 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Single-Port 10/100 Mbps PHY Transceiver |
| DJLXT972MTAA4 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Single-Port 10/100 Mbps PHY Transceiver |
| DJLXT972MTCA4 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Single-Port 10/100 Mbps PHY Transceiver |
發布緊急采購，3分鐘左右您將得到回復。