參數(shù)資料
型號： KS8721SL TR
廠商： Micrel Inc
文件頁數(shù)： 28/33頁
文件大?。?/td> 0K
描述： IC TXRX PHY 10/100 3.3V 48SSOP
標準包裝： 1,000
類型： 收發(fā)器
驅(qū)動器/接收器數(shù)： 1/1
規(guī)程： IEEE 802
電源電壓： 2.375 V ~ 2.625 V
安裝類型： 表面貼裝
封裝/外殼： 48-BSSOP（0.295"，7.50mm 寬）
供應(yīng)商設(shè)備封裝： 48-SSOP
包裝： 帶卷 (TR)
配用： 576-1010-ND - BOARD EVAL EXPERIMENT KS8721SL
其它名稱： KS8721SLTR
KS8721BL/SL
Micrel
M9999-051704
4
May 2004
Table Of Contents
Pin Description ............................................................................................................................................................ 6
Strapping Option ......................................................................................................................................................... 9
Pin Configuration ...................................................................................................................................................... 10
Introduction
........................................................................................................................................................... 11
100BASE-TX Transmit ........................................................................................................................................ 11
100BASE-TX Receive ......................................................................................................................................... 11
PLL Clock Synthesizer ......................................................................................................................................... 11
Scrambler/De-scrambler (100BASE-TX only) ..................................................................................................... 11
10BASE-T Transmit ............................................................................................................................................. 11
10BASE-T Receive .............................................................................................................................................. 11
SQE and Jabber Function (10BASE-T only) ....................................................................................................... 11
Auto-Negotiation .................................................................................................................................................. 11
MII Management Interface ................................................................................................................................... 12
MII Data Interface ................................................................................................................................................ 12
Transmit Clock ............................................................................................................................................. 12
Receive Clock .............................................................................................................................................. 12
Transmit Enable ........................................................................................................................................... 12
Receive Data Valid ...................................................................................................................................... 12
Error Signals ................................................................................................................................................ 12
Carrier Sense ............................................................................................................................................... 12
Collision ........................................................................................................................................................ 13
RMII (Reduced MII) Data Interface ..................................................................................................................... 13
RMII Signal Definition .......................................................................................................................................... 13
Reference Clock .................................................................................................................................................. 13
Carrier Sense/Receive Data Valid ....................................................................................................................... 13
Receive Data ....................................................................................................................................................... 13
Transmit Enable ................................................................................................................................................... 13
Transmit Data ...................................................................................................................................................... 14
Collision Detection ............................................................................................................................................... 14
RX_ER
........................................................................................................................................................... 14
RMII AC Characteristics ...................................................................................................................................... 14
Unused RMII Pins ................................................................................................................................................ 14
Auto-Crossover (Auto-MDI/MDI-X) ...................................................................................................................... 15
Power Management ............................................................................................................................................. 16
100BT FX Mode .................................................................................................................................................. 16
Media Converter Operation ................................................................................................................................. 16
Circuit Design Reference for Power Supply ........................................................................................................ 17
Register Map
........................................................................................................................................................... 18
Register 0h: Basic Control .................................................................................................................................. 18
Register 1h: Basic Status ................................................................................................................................... 18
Register 2h: PHY Identifier 1 .............................................................................................................................. 19
Register 3h: PHY Identifier 2 .............................................................................................................................. 19
Register 4h: Auto-Negotiation Advertisement ..................................................................................................... 19
Register 5h: Auto-Negotiation Link Partner Ability .............................................................................................. 19
Register 6h: Auto-Negotiation Expansion ........................................................................................................... 20
Register 7h: Auto-Negotiation Next Page ........................................................................................................... 20
Register 8h: Link Partner Next Page Ability ........................................................................................................ 20
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