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Micrel KSZ8873FLL, Руководство пользователя

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Micrel KSZ8873FLL Скачать руководство пользователя страница 7

KSZ8873MLL/FLL/RLL Evaluation Board User’s Guide 

 

Micrel, Inc. 

 

January 11, 2011 

Confidential 

 

Rev. 1.1 

7/10

 

 

 
The following table shows the recommended settings for the evaluation board reserved jumpers. 

 

Table 2: Reserved Jumpers 

JUMPER 

Description 

Recommended Setting 

JP79 

MDC_PHY,MDIO_PHY 

Open 

JP27 

P3 MII configuration 
(For test only) 

Open 

JP30 

3.3V Biased of transformer 
Center (For test only) 

Open 

JP11 

Power for Fiber Module. 
(Port 2) 
 

KSZ8873MLL/RLL: Open For 
KSZ8873FLL: 
Close pin 1-2 for 3.3V Fiber 
Module. 
Close pin 3-2 for 5.0V Fiber 
Module. 

JP10 

Power for Fiber Module. 
(Port 1) 
 

KSZ8873MLL/RLL: Open For 
KSZ8873FLL: 
Close pin 1-2 for 3.3V Fiber 
Module. 
Close pin 3-2 for 5.0V Fiber 
Module. 

JP28 

REFCLKO3 enable. 
 

KSZ8873MLL/FLL: Open 
KSZ8873RLL:  
Close pin 1-2: Enable REFCLKO 
Close pin 2-3: Disable REFCLKO 

 
 
 

4.2  I2C Master (EEPROM) Mode 

 

The  evaluation  board  has  an  EEPROM  to  allow  the  user  to  explore  more  extensive 
capabilities  of  the  KSZ8873MLL/FLL/RLL.  The  user  can  conveniently  program  the 
EEPROM  on  board  using  the  USB  port  from  any  computer  with  a  WIN  2000/XP 
environment  and  the  Micrel  provided  software.    This  makes  it  easy  for  the  user  to 
evaluate features like “broadcast storm protection” and “rate control”.  

To  prepare  the  KSZ8873MLL/FLL/RLL  evaluation  board  for  EEPROM  configuration 
follow these steps:  

1.  Install the Micrel Switch Configuration Software to your computer. 
2.  Set JP3, JP9, JP21, JP25, JP34 and JP35 as specified in Table 3 for EEPROM mode 

             configuration.  Make sure that the EEPROM is installed on the board.  

3.

 

Connect the computer’s USB port to the KSZ8873MLL/FLL/RLL board with a 
USB port cable. 

4.  There are two way to power up the evaluation board: 

a). Connect the 5 VDC power supply to the KSZ8873MLL/FLL/RLL when JP400   
pin1-2 is closed. 

        

b). 5 VDC power source from the USB port when JP400 pin 2-3 is closed. 

Содержание KSZ8873FLL

Страница 1: ... by Micrel for its use Micrel reserves the right to change circuitry and specifications at any time without notification to the customer Micrel Products are not designed or authorized for use as components in life support appliances devices or systems where malfunction of a product can reasonably be expected to result in personal injury Life support devices or systems are devices or systems that a...

Страница 2: ...73MLL FLL RLL Evaluation Board User s Guide Micrel Inc January 11 2011 Confidential Rev 1 1 2 10 Revision History Revision Date Summary of Changes 1 0 06 30 09 Initial Release 1 1 01 11 11 Update description ...

Страница 3: ...3 SPI Slave Mode 8 4 4 10 100 Ethernet PHY Ports KSZ8873MLL RLL 9 4 5 100FX Fiber Port KSZ8873FLL 9 4 6 LED Indicators 9 4 7 MII Port Configuration KSZ8873MLL FLL 9 4 8 RMII Port Configuration KSZ8873RLL 10 5 0 Reference Documents 10 List of Tables Table 1 Feature Setting Jumpers 6 Table 2 Reserved Jumpers 7 Table 3 EEPROM Mode Settings 8 Table 4 SPI Slave Mode Settings 8 Table 5 LED Modes 9 Table...

Страница 4: ...on Magnetics KSZ8873MLL RLL Auto MDI MDI X on the PHY port 1 PHY Mode and 1 MAC Mode MII Connectors for the Switch RMII MII Interface 2 100Base FX fiber interface KSZ8873FLL 1 USB port to emulate an MIIM EEPROM SPI Interface On board EEPROM 2 LEDs per port to Indicate the Status and Activity of the RJ45 port 1 power jack for 5VDC Universal Power Supply 3 0 Evaluation Kit Contents The KSZ8873MLL FL...

Страница 5: ...om any 110 Volt AC wall or bench socket Before to start to use the evaluation board make sure the power connectors JP403 JP404 JP405 and JP31 are connected and close pin 1 2 of J14 4 1 Strap In Mode Strap in configuration mode is the quickest and easiest way to get started In this mode the KSZ8873MLL FLL RLL acts as a standalone 3 port switch Simply set the board s configuration jumpers to the des...

Страница 6: ...F feature of FX Pins 5 6 closed Force port 1 TX mode For KSZ8873MLL RLL close 5 6 since this device doesn t support FX mode For KSZ8873FLL open JP77 JP2 PWRDN Normal Operation KSZ8873MLL FLL RLL Chip Power Down JP101 P1FFC Pull Down Disable Pull Up default Enable JP102 P1DPX Pull Down Half Duplex Pull Up default Full Duplex JP103 P1SPD Pull Down 10BT Pull Up default 100BT JP104 P1ANEN Pull Down Di...

Страница 7: ...aster EEPROM Mode The evaluation board has an EEPROM to allow the user to explore more extensive capabilities of the KSZ8873MLL FLL RLL The user can conveniently program the EEPROM on board using the USB port from any computer with a WIN 2000 XP environment and the Micrel provided software This makes it easy for the user to evaluate features like broadcast storm protection and rate control To prep...

Страница 8: ...accessing all of the KSZ8873MLL FLL RLL features and registers The user can easily access the SPI interface using a computer connected to the evaluation board s USB port interface Micrel provides a Windows 2000 XP based program for the user to evaluate the KSZ8873MLL FLL RLL s full feature set In addition to all the registers available via EEPROM programming a host CPU connected to the KSZ8873MLL ...

Страница 9: ...ver and fiber cable The fiber signal threshold can be set by register 192 bit 6 Port1 and bit 7 Port2 If the bits are 1 the threshold will be set to 2 0V Otherwise it is 1 25V The resister R76 also need to be adjusted if the FXSD signal value from the fiber module doesn t meet the fiber signal threshold spec 4 6 LED Indicators There is one column of LED indicator for one column for port 2 The LED ...

Страница 10: ...873RLL or by the link partner When pin 1 2 of JP28 is closed the reference clock will be output from REFCLKO on KSZ8873RLL Register 198 bit 3 is used to select internal or external reference clock for the KSZ8873RLL RMII interface If pin 2 3 of JP28 is closed the REFCLKO disable Table 7 RMII Clock Setting 5 0 Reference Documents KSZ8873MLL FLL RLL Datasheet Rev 1 1 Contact Micrel for latest Datash...

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