ELECTRONIC SYSTEM AND RELATED METHOD WITH TIME-SHARING BUS

• US 20090319708A1
• Filed: 06/19/2008
• Published: 12/24/2009
• Est. Priority Date: 06/19/2008
• Status: Abandoned Application

• Current Assignee: MediaTek, Inc.
• Original Assignee: MediaTek, Inc.
• Inventors: Ho, Yu-Ping, Tseng, Jui-Hsing
• Application Number:
  US12/141,917
• Publication Number:
  US 20090319708A1
• Time in Patent Office: Days
• US Class Current: 710/113
• CPC Class Codes: G06F 13/3625 using a time dependent access

Abstract

An electronic system with time-sharing bus includes a controller, a storage element, a first electronic element, and a shared bus. The controller receives a command to generate a set of enable signals and a set of operation signals. The storage element has a first set of input ends coupled to the controller for receiving a first enable signal of the set of enable signals. The first electronic element has a first input end coupled to the controller for receiving a second enable signal of the set of enable signals. The shared bus is coupled between the controller and the storage element, and is coupled between the controller and the first electronic element. The shared bus provides the set of operation signals to the storage element while the first electronic element is disabled and provides the set of operation signals to the first electronic element while the storage element is disabled.

Claims

1. A electronic system with time-sharing bus, the electronic system comprising:

a controller used for receiving a command to generate a set of enable signals and a set of operation signals;

a storage element having a first set of input ends coupled to the controller for receiving a first enable signal of the set of enable signals;

a first electronic element having a first input end coupled to the controller for receiving a second enable signal of the set of enable signals; and

a shared bus coupled between the controller and the storage element, and coupled between the controller and the first electronic element;

wherein the shared bus provides the set of operation signals to the storage element while the first electronic element is disabled;

wherein the shared bus provides the set of operation signals to the first electronic element while the storage element is disabled.

2. The electronic system of claim 1, wherein the storage element is a dynamic random access memory (DRAM).

3. The electronic system of claim 2, wherein the set of enable signals comprise a clock signal, a clock enable signal, a chip select signal, or a data mask signal.

4. The electronic system of claim 2, wherein the shared bus comprises a data bus.

5. The electronic system of claim 2, wherein the shared bus comprises an address bus.

6. The electronic system of claim 1, wherein the first electronic element comprises a flash, an ATA, or a GPIO (General Purpose Input Output) device.

7. The electronic system of claim 1 further comprising:

a second electronic element having a first input end coupled to the controller for receiving a third enable signal of the set of enable signals;

wherein the shared bus is coupled between the controller and the storage, between the controller and the first electronic element, and between the controller and the second electronic element;

wherein the shared bus provides the set of operation signals to the storage element while both the first electronic element and the second electronic element are disabled;

wherein the shared bus provides the set of operation signals to the first electronic element while both the storage element and the second electronic element are disabled;

wherein the shared bus provides the set of operation signals to the second electronic element while both the storage element and the first electronic element are disabled.

8. The electronic system of claim 7 further comprising:

a selector having an input end coupled to the controller and a set of output ends coupled to the first electronic element and the second electronic element, the selector used for selecting the first electronic element or the second electronic element.

9. The electronic system of claim 1, wherein the electronic system comprises an application specific integrated circuit (ASIC).

10. A method for sharing a bus of an electronic system, the method comprising:

receiving a command to generate a set of enable signals and a set of operation signals;

controlling a storage element according to a first enable signal of the set of enable signals;

controlling a first electronic element according to a second enable signal of the set of enable signals; and

providing a shared bus for transmission of the set of operation signals to the first electronic element while the storage element is disabled.

11. The method of claim 10 further comprising:

providing the sharing bus for transmission of the set of operations signals to the storage element while the first electronic element is disabled.

12. The method of claim 10, wherein the storage element is a dynamic random access memory (DRAM).

13. The method of claim 12, wherein the set of enable signals comprise a clock signal, a clock enable signal, a chip select signal, or a data mask signal.

14. The method of claim 10, wherein the step of providing the shared bus for transmission of the set of operation signals to the first electronic element while the storage element is disabled comprises providing a data bus of a memory for the first electronic element while the storage element is disabled.

15. The method of claim 10, wherein the step of providing the shared bus for transmission of the set of operation signals to the first electronic element while the storage element is disabled comprises providing an address bus of a memory for the first electronic element while the storage element is disabled.

16. The method of claim 10, wherein the first electronic element comprises a flash, an ATA, or a GPIO (General Purpose Input Output) device.

17. The method of claim 10 further comprising:

controlling a second electronic element according to the set of enable signals;

providing the shared bus for transmission of the set of operation signals to the storage element while both the first electronic element and the second electronic element are disabled;

providing the shared bus for transmission of the set of operation signals to the first electronic element while both the storage element and the second electronic element are disabled; and

providing the shared bus for transmission of the set of operation signals to the second electronic element while both the storage element and the first electronic element are disabled.

18. The method of claim 17 further comprising:

selecting the first electronic element or the second electronic element.

19. The method of claim 10, wherein the electronic system comprises an application specific integrated circuit (ASIC).