Abstract:
Provided is a power management device which includes a first regulator, a second regulator and a control register unit. The first regulator provides a first driving voltage to a first power domain of an application processor. The second regulator provides a second power domain of the application processor with a second driving voltage having a correlation with the first driving voltage. The control register unit controls, in response to a command from the application processor, a reference voltage generation circuit that provides a first reference voltage and a second reference voltage to the first regulator and the second regulator, respectively. The level of the first driving voltage is maintained in a first driving mode. The first driving voltage and the second driving voltage have a set voltage difference in a second driving mode.
Abstract:
An apparatus and a method of connecting a portable terminal to a network, by which a specific network can be connected to through selection of a user, are provided. The apparatus includes a display unit for informing of a state of non-connection to a specific network and for displaying a menu item for connecting to the specific network, and a controller for controlling the portable terminal so as to search for and to connect to the specific network through selection of the menu item for connecting to the specific network when the portable terminal is not connected to the specific network.