US 2003/0145135 A1 · Microcomputer

Abstract

A microcomputer and method for same can contain a nonvolatile memory module and store information regarding various system models in the memory module to support the various system models by one keyboard BIOS. Functions preset in the microcomputer, which includes a keyboard controller are not removed even though system voltages are removed so the preset functions are maintained. Preferably, the microcomputer includes a nonvolatile memory module for storing desired, prestored information even when system voltages are removed, and a keyboard controller module for performing control operations of a keyboard with a keyboard basic input/output system (BIOS). The desired information can include function information set by a user, current status information, and design selection information for designing the keyboard BIOS appropriately to an applied system.

Claims24

Dependent claims

A portable computer, comprising:

a system including a CPU;
a microcomputer coupled to the system by a first interface, wherein the microcomputer comprises,
a nonvolatile memory module that stores prescribed information, and
a keyboard controller module that controls a keyboard using a keyboard basic input/output system (BIOS), wherein the keyboard controller is connected to the nonvolatile memory module by a second interface;
and
a third interface that connects the system to the nonvolatile memory module in the microcomputer.

3 more elements

Dependencies are inferred from the claim text.

Microcomputer

Life of this patent

Microcomputer

Life of this patent

Abstract

Claims24