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KS8721BL/SL Demo Board User Guide Rev. 1.0 

Introduction  

 

The KS8721BL/SL evaluation board is a single port 10/100 Base Transceiver with MII 

interface. 
The default settings of this demo board are documented in this manual, please see 

“jumper setting section” of this manual.  
This board is not intended for reference design nor manufacturing.  Please contact Micrel 

FAE for consultation of layout and other design issues.  

 

Features  

 

 

Micrel KS8721BL/SL Single 3.3V supply 10/100BaseTX/FX Physical Layer 

Transceiver 

 

RJ45 jacks for Ethernet LAN port  

 

1 MII (media independent Interface) connector for I/F with MAC controller 

 

4 LEDs to indicate the status and activities   

 

Micrel MIC5216-3.3BM5 or MIC5207-3.3BM5 Regulator to step down to 3.3V  

 

Jumpers for various configurations 

 

Kit Contents  

The KS8721BL/SL Evaluation kit includes the following: 

 

KS8721BL/SL Evaluation Board  

 

KS8721BL/SL Board User Guide 

 

Reference Documents  

 

KS8721BL/SL Data Sheet    (contact Micrel/Kendin for latest datasheet)           

KS8721BL/SL Schematics   

KS8721BL/SL Schematics in OrCAD format  
KS8721BL/SL Gerber file  

MIC5216-3.3BM5 or MIC5207-3.3BM5 Datasheet   
(The latest datasheet from 

www.micrel.com

)  

AN117 Application Note – Drop-in Replacement with KS8721B/BT 

 
 
 
 
 
 
 

Micrel Confidential Information @2003

   

 

 

Page 3

 

Содержание KS8721BL/SL

Страница 1: ...he 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 pe...

Страница 2: ...ures 3 Kit Contents 3 Reference Documents 3 Hardware Description 4 LED indicators 4 Jumper setting 4 40 Pin MII Ports 5 Bill of Material 6 Appendix 7 Revision History Revision Date Change User Guide 0...

Страница 3: ...net LAN port 1 MII media independent Interface connector for I F with MAC controller 4 LEDs to indicate the status and activities Micrel MIC5216 3 3BM5 or MIC5207 3 3BM5 Regulator to step down to 3 3V...

Страница 4: ...llowing settings during power up or RESET stage J3 J4 J5 J6 and J10 setup the PHY address at power up the default is 00001 when J3 to J6 and J10 are open J7 SHORT Enable PCS Loop back default is OPEN...

Страница 5: ...n 3 MDC 23 Common 4 RxD 3 24 Common 5 RxD 2 25 Common 6 RxD 1 26 Common 7 RxD 0 27 Common 8 Rx_DV 28 Common 9 Rx_Clk 29 Common 10 Rx_Er 30 Common 11 Tx_Er 31 Common 12 Tx_Clk 32 Common 13 Tx_En 33 Com...

Страница 6: ...Cap 22PF 2 C11 C12 Dig Key or equiv Cap 1000Pf 2KV 1 C20 Dig Key or equiv Cap 0 01UF 1 C24 Dig Key or equiv Diode 1N4148 1 D1 Dig Key or equiv FBEAD 2 FB1 FB2 Steward HI1206N101R 00 HEADER 1x1 1 TP1 D...

Страница 7: ...uiv Resistor 1K 3 R21 R22 R23 Dig Key or equiv Resistor 220 4 R27 R28 R29 R31 Dig Key or equiv Resistor 4 7K 7 R40 R41 R42 R43 R44 R47 R50 Dig Key or equiv Transformer 1 T1 Pulse H1102 Appendix KS8721...

Страница 8: ...LEASE July 08 03 Micrel Ethernet KS8721BL SL Demo Board Schematics Sept 23 03 Change the part number to KS8721BL SL 1 1 1849 Fortune Dr San Jose CA 95131 http www micrel com Change description on MIC5...

Страница 9: ...C VCC R7 49 9 1 C6 100uf C13 0 1uf C8 0 1uf C14 0 1uf J13 JUMPER R2 100K R21 1K U2 KS8721 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40...

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