MICROCOMPUTER, SYSTEM INCLUDING THE SAME, AND DATA TRANSFER DEVICE

• US 20100080538A1
• Filed: 09/02/2009
• Published: 04/01/2010
• Est. Priority Date: 10/01/2008
• Status: Active Grant

• Current Assignee: Renesas Electronics Corporation
• Original Assignee: Renesas Technology Corporation (Renesas Electronics Corporation)
• Inventors: Inoue, Hideo, Shimoyama, Yuji
• Granted Patent: US 8,229,271 B2
• Time in Patent Office: Days
• US Class Current: 386/241
• CPC Class Codes: B60R 2300/408 using a data bus
• CPC Class Codes: B60R 2300/804 for lane monitoring
• CPC Class Codes: B60R 2300/8093 for obstacle warning
• CPC Class Codes: G06F 13/40 Bus structure for computer networks G06F15/163; for optical bus networks H04B10/25
• CPC Class Codes: G06V 20/58 Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads
• CPC Class Codes: G06V 20/588 Recognition of the road, e.g. of lane markings; Recognition of the vehicle driving pattern in relation to the road
• CPC Class Codes: H04N 5/765 Interface circuits between an apparatus for recording and another apparatus
• CPC Class Codes: H04N 5/91 Television signal processing therefor

Abstract

A microcomputer is provided, which can load data of different areas in parallel and transfer the loaded data to a storage circuit. The microcomputer includes a CPU to control a DRIs each of which loads image data of a prescribed area out of image data inputted from a camera and transfers the image data to a memory blocks, and the DRIs each of which transfers image data of respectively different area out of the image data inputted from the camera to the memory blocks. Therefore, it becomes possible to load image data of different areas in parallel and to transfer the loaded image data to the memory blocks.

Claims

1. A microcomputer for transferring externally inputted data to a storage circuit, the microcomputer comprising:

a plurality of interface means each of which loads data in a prescribed area out of the externally inputted data and transfers the loaded data to the storage circuit; and

a processor which controls the interface means so as to transfer data in respectively different areas out of the externally inputted data to the storage circuit.

2. The microcomputer according to claim 1,

wherein each of the interface means loads data in an overlapping area out of the externally inputted data and transfers the loaded data to the storage circuit in parallel.

3. The microcomputer according to claim 2,

wherein each of the interface means comprises:

an event detecting means which detects an event according to a synchronizing signal externally inputted;

a plurality of counting means each of which counts an event detected by the event detecting means and operable to enable loading of data corresponding to the prescribed area;

a control means which loads data in the prescribed area out of the externally inputted data in response to the loading enabling by the counting means, and outputs the loaded data to the storage circuit; and

an address generating means which generates an address to which the data in the prescribed area outputted by the control means is stored and outputs the generated address to the storage circuit.

4. The microcomputer according to claim 3, further comprising:

a selection means which selects one of the externally inputted data and data different from the externally inputted data, and outputs the selected data to at least one of the interface means.

5. A system comprising:

a camera which takes an image;

a storage circuit which stores data; and

a microcomputer which transfers image data inputted by the camera to the storage circuit,

wherein the microcomputer includes;

a plurality of interface means each of which loads image data in a prescribed area out of the image data inputted by the camera and transfers the loaded image data to the storage circuit; and

a processor which controls the interface means so as to transfer image data in different areas out of the image data inputted by the camera.

6. A data transfer device for transferring externally inputted data to a storage circuit, the data transfer device comprising:

a plurality of interface means each of which loads data in a prescribed area out of the externally inputted data and transfers the loaded data to the storage circuit,

wherein each of the interface means transfers, to the storage circuit, data in different area out of the externally inputted data.