參數(shù)資料
型號： KSZ8051RNL
廠商： Micrel Inc
文件頁數(shù)： 24/59頁
文件大?。?/td> 0K
描述： TXRX PHY 10/T100 3.3V RMII 32QFN
特色產(chǎn)品： KSZ8051RNL Physical Layer Transceiver
標(biāo)準(zhǔn)包裝： 640
類型： PHY 收發(fā)器
驅(qū)動器/接收器數(shù)： 1/1
規(guī)程： RMII
電源電壓： 1.8V，2.5V，3.3V
安裝類型： 表面貼裝
封裝/外殼： 32-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 32-QFN 裸露焊盤（5x5）
包裝： 托盤
其它名稱： 576-3713
Micrel, Inc.
KSZ8051MNL/RNL
July 2010
30
M9999-070910-1.0
Crossover Cable
A crossover cable connects a MDI device to another MDI device, or a MDI-X device to another MDI-X device. The
following figure depicts a typical crossover cable connection between two switches or hubs (two MDI-X devices).
Figure 7. Typical Crossover Cable Connection
LinkMD
Cable Diagnostics
The LinkMD
function utilizes time domain reflectometry (TDR) to analyze the cabling plant for common cabling problems,
such as open circuits, short circuits and impedance mismatches.
LinkMD
works by sending a pulse of known amplitude and duration down the MDI or MDI-X pair, and then analyzing the
shape of the reflected signal to determine the type of fault. The time duration for the reflected signal to return provides the
approximate distance to the cabling fault. The LinkMD
function processes this TDR information and presents it as a
numerical value that can be translated to a cable distance.
LinkMD
is initiated by accessing register 1Dh, the LinkMD Control/Status Register, in conjunction with register 1Fh, the
PHY Control 2 Register. The latter register is used to disable auto MDI/MDI-X and to select either MDI or MDI-X as the
cable differential pair for testing.
NAND Tree Support
The KSZ8051MNL/RNL provides parametric NAND tree support for fault detection between chip I/Os and board. The
NAND tree is a chain of nested NAND gates in which each KSZ8051MNL/RNL digital I/O (NAND tree input) pin is an input
to one NAND gate along the chain. At the end of the chain, the CRS/CONFIG1 pin provides the output for the nested
NAND gates.
The NAND tree test process includes:
Enabling NAND tree mode
Pulling all NAND tree input pins high
Driving low each NAND tree input pin sequentially per the NAND tree pin order
Checking the NAND tree output to ensure there is a toggle high-to-low or low-to-high for each NAND tree input
driven low
The following tables list the NAND tree pin order.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
KSZ8051RNL AM 功能描述:以太網(wǎng) IC Single-Port 10/100BT PHY (Automotive) 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
KSZ8051RNL AM TR 功能描述:以太網(wǎng) IC Single-Port 10/100BT PHY (Automotive) 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
KSZ8051RNL TR 功能描述:以太網(wǎng) IC 3.3V, 10Base-T/100Base-TX Physical Layer Transceiver w/ RMII Support (32-QFN) 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
KSZ8051RNL-EVAL 功能描述:以太網(wǎng)開發(fā)工具 3.3V, 10Base-T/100Base-TX Physical Layer Transceiver w/ RMII Support (32-QFN) - Evaluation Board RoHS:否 制造商:Micrel 產(chǎn)品:Evaluation Boards 類型:Ethernet Transceivers 工具用于評估:KSZ8873RLL 接口類型:RMII 工作電源電壓:
KSZ8051RNLI 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:10Base-T/100Base-TX Physical Layer Transceiver
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