System having a first device and second device in which the main power management module is configured to selectively supply a power and clock signal to change the power state of each device independently of the other device
US8448001B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2010 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Aug 7, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system includes a first device, a second device, and a main power management module. The first device is configured to communicate with a system bus. The second device is configured to communicate with the system bus. The second device includes a device power management module configured to manage power states of the second device. The main power management module is configured to manage power consumption of the second device independently of the first device by selectively supplying power and clock signals to the second device based on the power states of the second device. The main power management module and the device power management module each comprise a power handshake interface. The main power management module communicates with the device power management module via a power management bus using the power handshake interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.