LXT975B datasheet(5/74 Pages) INTEL

5 / 74 page

Datasheet

Fast Ethernet 10/100 Quad Transceivers — LXT974/LXT975

Figures

LXT974/975 Block Diagram .................................................................................. 9

LXT974 Pin Assignments ................................................................................... 10

LXT975 Pin Assignments ................................................................................... 12

LXT974 Switch Application ................................................................................. 19

LXT975 Switch Application ................................................................................. 20

MII Data Interface ...............................................................................................22

Loopback Paths .................................................................................................. 24

Management Interface - Read Frame Structure ................................................. 25

Management Interface - Write Frame Structure ................................................. 25

MDIO Interrupt Signaling .................................................................................... 25

Hardware Interface Mode Selection ................................................................... 28

LXT974/975 Auto-Negotiation Operation ........................................................... 30

100BASE-TX Data Flow ..................................................................................... 31

100BASE-TX Frame Structure ........................................................................... 31

LXT974/975 Protocol Sublayers ......................................................................... 33

100BASE-TX Reception with No Errors ............................................................. 34

100BASE-TX Reception with Invalid Symbol ..................................................... 34

100BASE-TX Transmission with No Errors ........................................................ 34

100BASE-TX Transmission with Collision .......................................................... 34

Typical LXT974 Twisted-Pair Single RJ-45 Modular Application ....................... 44

Typical LXT975 Twisted-Pair Stacked RJ-45 Modular Application .................... 45

LXT974/975 Power and Ground Connections .................................................... 46

Typical Twisted-Pair Interface and Supply Filtering ........................................... 47

Typical Fiber Interface ........................................................................................ 48

Typical MII Interface ........................................................................................... 49

MII - 100BASE-TX Receive Timing .................................................................... 53

MII - 100BASE-TX Transmit Timing ................................................................... 54

MII - 100BASE-FX Receive Timing .................................................................... 55

MII - 100BASE-FX Transmit Timing ................................................................... 56

MII - 10BASE-T Receive Timing ........................................................................ 57

MII - 10BASE-T Transmit Timing ....................................................................... 58

10BASE-T SQE (Heartbeat) Timing ................................................................... 58

10BASE-T Jab and Unjab Timing ...................................................................... 59

Auto Negotiation and Fast Link Pulse Timing .................................................... 60

Fast Link Pulse Timing ....................................................................................... 60

MDIO Timing when Sourced by STA ................................................................. 61

MDIO Timing When Sourced by PHY ................................................................ 61

Power Down Timing ........................................................................................... 62

Serial LED Timing .............................................................................................. 62

PHY Identifier Bit Mapping ..................................................................................66

LXT974/975 Package Specification ................................................................... 73

LXT975B Datasheet(PDF) 5 Page - Intel Corporation

LXT975B Datasheet(HTML) 5 Page - Intel Corporation

Html Pages

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 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74

Datasheet Download

Link URL