Datasheet
Table Of Contents
- 1.0 Introduction
- 2.0 Pin Description and Configuration
- 3.0 Functional Description
- 3.1 10BASE-T/100BASE-TX Transceiver
- 3.2 RMII Interface
- 3.3 Back-to-Back Mode – 100 Mbps Copper Repeater
- 3.4 MII Management (MIIM) Interface
- 3.5 Interrupt (INTRP)
- 3.6 HP Auto MDI/MDI-X
- 3.7 Loopback Mode
- 3.8 LinkMD® Cable Diagnostic
- 3.9 NAND Tree Support
- 3.10 Power Management
- 3.11 Reference Circuit for Power and Ground Connections
- 3.12 Typical Current/Power Consumption
- 4.0 Register Descriptions
- 5.0 Operational Characteristics
- 6.0 Electrical Characteristics
- 7.0 Timing Diagrams
- 8.0 Reset Circuit
- 9.0 Reference Circuits — LED Strap-In Pins
- 10.0 Reference Clock - Connection and Selection
- 11.0 Magnetic - Connection and Selection
- 12.0 Package Outline
2016 Microchip Technology Inc. DS00002199A-page 3
KSZ8081RNA/RND
Table of Contents
1.0 Introduction ..................................................................................................................................................................................... 4
2.0 Pin Description and Configuration .................................................................................................................................................. 5
3.0 Functional Description .................................................................................................................................................................. 10
4.0 Register Descriptions .................................................................................................................................................................... 26
5.0 Operational Characteristics ........................................................................................................................................................... 35
6.0 Electrical Characteristics ............................................................................................................................................................... 36
7.0 Timing Diagrams............................................................................................................................................................................ 38
8.0 Reset Circuit .................................................................................................................................................................................. 42
9.0 Reference Circuits - LED Strap-In Pins ......................................................................................................................................... 43
10.0 Reference Clock - Connection and Selection .............................................................................................................................. 44
11.0 Magnetic - Connection and Selection .......................................................................................................................................... 45
12.0 Package Outlines......................................................................................................................................................................... 47
Appendix A: Data Sheet Revision History ........................................................................................................................................... 48
The Microchip Web Site ...................................................................................................................................................................... 49
Customer Change Notification Service ............................................................................................................................................... 49
Customer Support ............................................................................................................................................................................... 49
Product Identification System ............................................................................................................................................................. 50