Method and system in a data processing system for interfacing an

Details Method and system in a data processing system for interfacing an Method and system in a data processing system for interfacing an

1995-10-05

1998-11-03

Harvey, Jack B.

39575005, 395828, 395829, 395834, G06F 132

Patent

active

058322809

ABSTRACT:
In a data processing system having an operating system and a power management controller coupled to one or more power-managed devices, each of the power-managed devices is assigned a device identifier. An architected power-managed device select register and an architected power mode select register are provided within the data processing system. To modify a power mode of a power-managed device, the operating system writes a selected one of the device identifiers to the architected power-managed device select register for selecting an identified one of the power-managed devices. Thereafter, the operating system writes a power mode identifier to the architect power mode select register for selecting one of a plurality of power modes within the selected power-managed device. The device identifier and the power mode identifier are translated into control signals for the power management controller within the data processing system. Such control signals are then transmitted to the power management controller and the identified power-managed device is operated in the selected power mode, wherein the operating system controls the power modes of power-managed devices without programming a particular implementation of power management control in the operating system.

REFERENCES:
patent: 5014193 (1991-05-01), Garner et al.
patent: 5167024 (1992-11-01), Smith et al.
patent: 5175853 (1992-12-01), Kardach et al.
patent: 5276888 (1994-01-01), Kardach et al.
patent: 5301276 (1994-04-01), Kimura
patent: 5317693 (1994-05-01), Cuenod et al.
patent: 5379431 (1995-01-01), Lemon et al.
patent: 5493684 (1996-02-01), Gephardt et al.
patent: 5560022 (1996-09-01), Dunstan et al.

Affiliated with

Also associated with

Rating

Method and system in a data processing system for interfacing an does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and system in a data processing system for interfacing an, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system in a data processing system for interfacing an will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-702010