Control system for memory storage device having two different interfaces

• US 6,880,024 B2
• Filed: 06/12/2003
• Issued: 04/12/2005
• Est. Priority Date: 06/12/2003
• Status: Active Grant

• Current Assignee: ADATA Technology Co., Ltd., Phison Electronics Corporation
• Original Assignee: ADATA Technology Co., Ltd., Phison Electronics Corporation
• Inventors: Chen, Chien-An, Huang, Yi-Hsiang, Chen, Li-Pai
• Primary Examiner(s): Huynh, Kim
• Assistant Examiner(s): KNAPP, JUSTIN R
• Application Number:
  US10/459,588
• Publication Number:
  US 20040255064A1
• Time in Patent Office: 670 Days
• Field of Search: 710/8, 710/62, 710/64, 710/14, 710/15, 710/17, 710/104, 710/301
• US Class Current: 710/62
• CPC Class Codes: G06F 13/4022 using switching circuits, e.g. switching matrix, connection or expansion network G06F13/4009 takes precedence
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

An application IC that can be applied in the control system of a memory storage device for the USB device for communicating with a server for receiving, reading and writing commands from the server and to access to the data stored in various memory storage devices is provided. Alternatively, the application IC can support the server, including IDE portable information product for data transmission. The data transmission having these two different specifications can share the same data source in certain mechanism. In this mechanism, the USB server is in the first priority transfer mode, the IDE server will take action only when the USB server is unavailable or discharged. When the IDE server is in operation mode, the interruption demand from the USB server is denied and after the IDE server completes the assignment, the interruption command from the USB server is executed.

Claims

1. A control system for memory storage device having two different interfaces, comprising:

an application IC chip comprising an IDE interface, an USB interface, a CPU, a buffer, a ROM, a power circuit and a plurality of memory cards;

wherein said application IC is capable of connecting to an USB electronic device through said USB interface and also an IDE portable information product through said IDE interface;

wherein said USB electronic device is capable of communicating with said CPU of said application IC for retrieving information from said memory cards or storing information into said memory cards that are connected with a memory card interface, and when the USB electronic device stops operation, said IDE portable information product is capable of communicating with said CPU of said application IC for retrieving information from said memory cards or storing information into said memory cards that are connected with the memory card interface,

wherein a USB mode is a priority transmission mode for said application IC, said IDE interface being able to operate only when said USB interface is not operating or unavailable, and when said IDE portable information device that is connected to said IDE interface is operating, the system will deny any interruption from said USB electronic device that is connected to said USB interface, and

wherein once said IDE portable information product completes an operation, then a interruption command from said USB device can be executed.

2. The control system for memory storage device according to claim 1, wherein at least one of said memory cards includes a flash memory.

3. The control system for memory storage device according to claim 1, wherein said memory card interface is selected from the group consisting of a parallel port interface, an IDE interface, a PCMCIA interface, a serial port, a USB port, and an IEEE1394 port.