Patent ID: 6993597

Claim:
A mobile communication terminal comprising: a microprocessor having registers and an internal memory; an external memory coupled with the microprocessor; an antenna receiving a reception data from outside of the mobile communication terminal and transmitting data to outside of the mobile communication terminal; and an RF circuit converting a frequency of the reception data and the transmission data, wherein the microprocessor performs a CPU function and a DSP function, wherein the microprocessor transfers a data from the internal memory to the registers per one cycle when the microprocessor performs the CPU function, wherein the microprocessor can transfer two data from the memory to the registers per one cycle when the microprocessor performs the DSP function, wherein the internal memory has a first internal memory and a second internal memory, wherein the microprocessor can transfer two data from the first and second internal memories in parallel when the microprocessor performs the DSP function, and wherein the external memory is shared by the CPU function and DSP function.