Cirrus Logic CS8952 - Manual (Page 2)

CS8952
CrystalLAN™ 100BASE-X and 10BASE-T Transceiver 2
DS206F1
TABLE OF CONTENTS
1. SPECIFICATIONS AND CHARACTERISTICS......................................................... 3
2. INTRODUCTION ..................................................................................................... 18
2.1 High Performance Analog ............................................................................. 18
2.2 Low Power Consumption .............................................................................. 18
2.3 Application Flexibility..................................................................................... 18
2.4 Typical Connection Diagram ......................................................................... 18
3. FUNCTIONAL DESCRIPTION ................................................................................ 18
3.1 Major Operating Modes................................................................................. 20
3.1.1 100BASE-X MII Application (TX and FX) ........................................... 20
Symbol Encoding and Decoding ........................................................... 20
100 Mb/s Loopback ............................................................................... 22
3.1.2 100BASE-X Repeater Application ...................................................... 22
3.1.3 10BASE-T MII Application .................................................................. 23
Full and Half Duplex operation .............................................................. 23
Collision Detection ................................................................................ 23
Jabber ................................................................................................... 23
Link Pulses ............................................................................................ 23
Receiver Squelch .................................................................................. 23
10BASE-T Loopback ............................................................................. 23
Carrier Detection ................................................................................... 24
3.1.4 10BASE-T Serial Application .............................................................. 24
3.2 Auto-Negotiation ........................................................................................... 24
3.3 Reset Operation ............................................................................................ 25
3.4 LED Indicators............................................................................................... 25
4. MEDIA INDEPENDENT INTERFACE (MII) ............................................................. 25
4.1 MII Frame Structure ...................................................................................... 26
4.2 MII Receive Data........................................................................................... 26
4.3 MII Transmit Data.......................................................................................... 27
4.4 MII Management Interface ............................................................................ 27
4.5 MII Management Frame Structure ................................................................ 28
5. CONFIGURATION .................................................................................................. 29
5.1 Configuration At Power-up/Reset Time......................................................... 29
5.2 Configuration Via Control Pins ...................................................................... 29
5.3 Configuration via the MII ............................................................................... 29
6. CS8952 REGISTERS .............................................................................................. 30
7. DESIGN CONSIDERATIONS .................................................................................. 62
7.1 Twisted Pair Interface ................................................................................... 62
7.2 100BASE-FX Interface.................................................................................. 62
7.3 Internal Voltage Reference ........................................................................... 63
7.4 Clocking Schemes ........................................................................................ 63
7.5 Recommended Magnetics ............................................................................ 64
7.6 Power Supply and Decoupling ...................................................................... 64
7.7 General Layout Recommendations............................................................... 65
8. PIN DESCRIPTIONS ............................................................................................... 67
9. PACKAGE DIMENSIONS. ...................................................................................... 79
10. ORDERING INFORMATION ................................................................................. 80
11. ENVIRONMENTAL, MANUFACTURING, & HANDLING INFORMATION ........... 80
12. REVISION HISTORY ............................................................................................ 81