Power saving terminated bus
US5528168A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 29, 1995 |
| Grant date | Jun 18, 1996 |
| Priority date | — |
| Expiry date | Mar 29, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/029
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A bus termination method and apparatus, specifically, a terminator circuit, a driver/terminator circuit, and appropriate control logic. The terminator circuit and the driver/terminator circuit provide termination of an interface node to one of a first and a second voltage potential selected according to a previous logic value sampled on the input node at a time determined by a clock signal. The driver/terminator circuit also drives data values on the interface node. The terminator circuit and the driver/terminator circuit can be used in bus agents in a computer system. In one computer system configuration, a driving bus agent drives a signal line which is terminated by a predetermined terminating bus agent. Each bus agent compares its device identification to a bus master identification to determine whether to drive, terminate, or tristate the bus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.