User manual

Contents
Preface ............................................................................................................................... 7
1 Introduction ................................................................................................................ 9
1.1 Purpose of the Peripheral ....................................................................................... 9
1.2 Features ........................................................................................................... 9
1.3 Functional Block Diagram ..................................................................................... 10
1.4 Industry Standard(s) Compliance Statement ............................................................... 10
2 Peripheral Architecture .............................................................................................. 11
2.1 Clock Control .................................................................................................... 11
2.2 Signal Descriptions ............................................................................................. 12
2.3 Pin Multiplexing ................................................................................................. 12
2.4 Protocol Description ............................................................................................ 12
2.5 VLYNQ Functional Description ............................................................................... 13
2.6 Initialization ...................................................................................................... 16
2.7 Auto-Negotiation ................................................................................................ 16
2.8 Serial Interface Width Configuration ......................................................................... 16
2.9 Address Translation ............................................................................................ 17
2.10 Flow Control ..................................................................................................... 20
2.11 Reset Considerations .......................................................................................... 21
2.12 Interrupt Support ................................................................................................ 21
2.13 DMA Event Support ............................................................................................ 23
2.14 Power Management ............................................................................................ 24
2.15 Emulation Considerations ..................................................................................... 24
3 VLYNQ Port Registers ................................................................................................ 25
3.1 Revision Register (REVID) .................................................................................... 26
3.2 Control Register (CTRL) ....................................................................................... 27
3.3 Status Register (STAT) ........................................................................................ 29
3.4 Interrupt Priority Vector Status/Clear Register (INTPRI) .................................................. 31
3.5 Interrupt Status/Clear Register (INTSTATCLR) ............................................................ 31
3.6 Interrupt Pending/Set Register (INTPENDSET) ............................................................ 32
3.7 Interrupt Pointer Register (INTPTR) ......................................................................... 32
3.8 Transmit Address Map Register (XAM)...................................................................... 33
3.9 Receive Address Map Size 1 Register (RAMS1) .......................................................... 34
3.10 Receive Address Map Offset 1 Register (RAMO1) ........................................................ 34
3.11 Receive Address Map Size 2 Register (RAMS2) .......................................................... 35
3.12 Receive Address Map Offset 2 Register (RAMO2) ........................................................ 35
3.13 Receive Address Map Size 3 Register (RAMS3) .......................................................... 36
3.14 Receive Address Map Offset 3 Register (RAMO3) ........................................................ 36
3.15 Receive Address Map Size 4 Register (RAMS4) .......................................................... 37
3.16 Receive Address Map Offset 4 Register (RAMO4) ........................................................ 37
3.17 Chip Version Register (CHIPVER) ........................................................................... 38
3.18 Auto Negotiation Register (AUTNGO) ....................................................................... 38
4 Remote Configuration Registers ................................................................................. 39
Appendix A VLYNQ Protocol Specifications ........................................................................ 40
A.1 Special 8b/10b Code Groups ................................................................................. 40
SPRUE36A – September 2007 Table of Contents 3
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