초록 ▼

Dedicated registers are arranged in a status LCD control gate array connected to a system bus, and the dedicated registers or register group and a keyboard controller are connected through a keyboard interface bus. The keyboard controller has two ports for communicating with a CPU. The keyboard cont

Dedicated registers are arranged in a status LCD control gate array connected to a system bus, and the dedicated registers or register group and a keyboard controller are connected through a keyboard interface bus. The keyboard controller has two ports for communicating with a CPU. The keyboard controller transfers existing commands released to an application program or the like and transmits normal key data through the system bus. The keyboard controller transmits hot key data and transfers a command for realizing any other special function through the keyboard interface bus and the dedicated registers.

대표청구항 ▼

[ What is claimed is:] [1.] A portable computer, comprising:a CPU;a system bus coupled to the CPU for transferring normal data between the CPU and a keyboard controller;a keyboard including hot keys designating function relating to setting and change of a system environment and normal keys for input

[ What is claimed is:] [1.] A portable computer, comprising:a CPU;a system bus coupled to the CPU for transferring normal data between the CPU and a keyboard controller;a keyboard including hot keys designating function relating to setting and change of a system environment and normal keys for inputting normal data;a keyboard controller, coupled to the system bus, a function expansion bus and the keyboard, for transferring the normal data to the CPU through the system bus and data indicating the hot key to a gate array circuit through a function expansion bus;a function expansion bus, coupled to the keyboard controller and a gate array circuit, for transferring the data indicating the hot key from the keyboard controller to a gate array circuit; anda gate array circuit, coupled to the function expansion bus and the system bus and provided with a register file, for receiving the data indicating the hot key from the keyboard controller for performing a process corresponding to the received hot key data; andwherein the keyboard controller transmits hot key data to the gate array circuit through the function expansion bus if the data to be transmitted is the data indicating the hot key, thereby the gate array circuit stores the hot key data in the register file.