Building the Power-Efficient PC: A Developer's Guide to ACPI Power Management
This book provides developers and integrators with practical knowledge and design techniques for building PCs that address the increasing demand for energy conservation.
TABLE OF CONTENTS Building the Power-Efficient PC: A Developer's Guide to ACPI Power Management
T-W
- Telephony Application Program Interface (TAPI)
- TAPI is a set ofMicrosoft Windows-based calls that applications use to control modems and telephones.
- Thermal Policy
- Thermal policy is the set of rules that an ACPI operating system uses to keep the system within acceptable thermal limits. Based on input from thermal sensors, the thermal policy determines the appropriate course of action (active, passive, or critical cooling).
- Thermal States
- Thermal states represent different operating environment temperatures within thermal zones of a system. A system can have one or more thermal zones; each thermal zone is the volume of space around a particular temperature-sensing device. The transitions from one thermal state to another are marked by trip points, which are implemented to generate an SCI when the temperature in a thermal zone moves above or below the trip point temperature.
- Throttling
- Throttling is a technology for reducing processor power consumption by periodically suppressing the processor clock input to the CPU core, thus reducing the effective processor frequency.
- Trickle Power (or Trickle Current)
- Trickle power refers to a low power current that is available to devices, such as modems and network interface cards, enabling them to wake the system when an external event occurs.
- Ultra Direct Memory Access (UDMA)
- UDMA is a protocol for the interface between a hard drive and a computer. Also known as ATA-4, UDMA improves upon the ATAPI/EIDE standard by doubling data transfer rates to 33MB/sec.
- Universal Serial Bus (USB)
- USB is an external bus standard that supports data transfer...
Copyright Intel Corporation 2001 under license agreement with Books24x7
