LXT980/980A Dual-Speed, 5-Port Fast Ethernet Repeater
4
Datasheet
3.1.5
3.1.6
3.1.7
3.1.8
Typical Application Circuitry................................................................................52
Test Specifications
..................................................................................................59
Register Definitions
................................................................................................79
5.1
Counter Registers...............................................................................................79
5.1.1
Port Counter Registers...........................................................................79
5.1.2
RMON Counter Registers ......................................................................81
5.2
Ethernet Address Registers................................................................................82
5.2.1
Port Address Tracking Registers............................................................82
5.2.2
Search Address Registers .....................................................................83
5.3
Control and Status Registers..............................................................................83
5.3.1
Port Link Control Register......................................................................83
5.3.2
General Port Control Registers..............................................................84
5.3.3
Port Learn and Speed Control Registers ...............................................85
5.3.4
Port Status Registers .............................................................................85
5.3.5
Interrupt Status/Mask Registers.............................................................86
5.3.6
MII Status Register.................................................................................87
5.4
Configuration Registers.......................................................................................88
5.4.1
Repeater Configuration Register............................................................89
5.5
Auto-Negotiation Registers.................................................................................92
Mechanical Specifications
...................................................................................95
The RBIAS Pin.......................................................................................50
The Twisted-Pair Interface.....................................................................50
The Fiber Interface.................................................................................50
Magnetics Information............................................................................51
3.2
4.0
5.0
6.0