LXT9782BC データシートの表示（PDF） - Intel

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LXT9782BC

Fast Ethernet 10/100 Multi-Port Transceiver with Serial MII

Intel 

Fast Ethernet 10/100 Multi-Port Transceiver with Serial MII — LXT9762/9782

Contents.

1.0

Preliminary Pin Assignments and Signal Descriptions ...........................10

2.0

Functional Description...........................................................................................20

2.1 Introduction..........................................................................................................20

2.1.1 OSP™ Architecture ................................................................................20

2.1.2 Comprehensive Functionality .................................................................20

2.2 Interface Descriptions..........................................................................................21

2.2.1 10/100 Network Interface .......................................................................21

2.2.2 SMII Data Interface ................................................................................22

2.2.3 Configuration Management Interface .....................................................22

2.3 Operating Requirements .....................................................................................25

2.3.1 Power Requirements..............................................................................25

2.3.2 Clock Requirements ...............................................................................25

2.4 Initialization..........................................................................................................25

2.4.1 Hardware Configuration Settings ...........................................................26

2.4.2 Reset ......................................................................................................27

2.4.3 Power-Down Mode.................................................................................28

2.5 Link Establishment ..............................................................................................28

2.5.1 Auto-Negotiation.....................................................................................28

2.5.2 Parallel Detection ...................................................................................29

2.6 Serial MII Operation ............................................................................................29

2.6.1 Reference Clock.....................................................................................31

2.6.2 SYNC Pulse ...........................................................................................31

2.6.3 Transmit Data Stream ............................................................................31

2.6.4 Receive Data Stream .............................................................................32

2.6.5 Loopback................................................................................................33

2.6.6 Collision..................................................................................................33

2.7 100 Mbps Operation............................................................................................34

2.7.1 100BASE-X Network Operations ...........................................................34

2.7.2 .100BASE-X Protocol Sublayer Operations ...........................................35

2.8 10 Mbps Operation..............................................................................................39

2.8.1 10T Preamble Handling..........................................................................40

2.8.2 10T Dribble Bits......................................................................................40

2.8.3 10T Link Test..........................................................................................40

2.8.4 10T Jabber .............................................................................................40

2.9 Monitoring Operations .........................................................................................40

2.9.1 Serial LED Functions..............................................................................40

2.9.2 Per-Port LED Driver Functions ...............................................................42

2.9.3 Monitoring Auto-Negotiation...................................................................43

2.9.4 Using the Quick Status Register ............................................................44

2.10 Boundary Scan (JTAG1149.1) Functions............................................................44

2.10.1 Boundary Scan Interface........................................................................44

2.10.2 State Machine ........................................................................................45

2.10.3 Instruction Register ................................................................................45

2.10.4 Boundary Scan Register ........................................................................45

Datasheet

3

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