Patent ID: 7774017
Filing Date: 2010-08-10
Classification: H04B

Abstract:
1. A single-chip semiconductor integrated circuit device adapted for use in a mobile communication system, the device comprising: a base band processing unit adapted to process a wireless communication base band; a first system processing unit adapted to process an application control process, and having a first CPU and a peripheral circuit, the first system processing unit executing a first operating system for high-level processes; and a second system processing unit adapted to process image data and voice data, and having a second CPU and executing a second operating system for real-time processes; wherein the base band processing unit has a third CPU executing a third operating system for real-time processes, wherein the first system processing unit has a first memory address space, wherein the base band processing unit has a second memory address space which is different from the first memory address space, wherein the first memory address space for the first system processing unit has a first access window for accessing the second memory address space, wherein the second memory address space for the base band processing unit has a second access window for accessing the first memory address space, wherein the first CPU of the first system processing unit is adapted to access an arbitrary address space of the second memory address space by accessing the first access window of the first memory address space, wherein the base band processing unit is adapted to access the peripheral circuit of the first system processing unit by accessing the second access window of the second memory address space, and wherein the base band processing unit executes base band processing in a global system for mobile communication protocol and a wideband code division multiple access protocol.