| 摘要 |
A power manager (PMGR) within a portable laptop computer provides power (via 26) and clocking control (via 27) to various units within the computer in order to conserve battery power. Transistor switches controlled by the power manager control the distribution of power and clock signals to the various units within the computer. The power manager includes a software routine for continually monitoring various units and when certain units are either not needed and/or not currently in use, power and/or clock signals are removed from a given unit, and the computer can be switched between three modes viz. normal, slow and sleep. <IMAGE> |
