TWI301237B - Protector and shutdown method for nand flash memory - Google Patents

Description

1301237 VII. Designated representative map: (1) The representative representative of the case is: the second picture. (1) A brief description of the component symbols of this representative diagram: 21: input unit; 22: delay unit; • 2 3 • logic unit; 24: processor; and 25: power supply unit. If there are chemical formulas in the eight cases, please disclose the chemical formula that best shows the characteristics of the invention: IX. Description of the invention: [Technical field of the invention] The present invention is a protection module for a flash memory and a shutdown method thereof, = Use the processing ^ read and write flash memory electronic device 'in particular, love and delay single 7 to avoid data loss and can not be shut down due to crash [previous technology] Figure ' is a personal digital assistant device Shutdown method ^ step map. First, the user performs a shutdown action (step _, the process directly sends a shutdown notification to the power supply unit; the power supply is supplied to the personal digital assistant device (step 110:)), thereby taking the personal two-position Stopping the state of the guard; completing the shutdown action of the personal digital assistant device (step 1301237 120). If the processor of the personal digital assistant device is logged, the unit will continue to supply power, so that the personal digital assistant device i cannot In addition, when the user enforces the personal digital assistant 詈: the form should immediately stop the supply of power to the surface of the body ^ 4 body for data read and write actions, easily lead to the loss of flash memory data ^ ^ and ° ten kinds of fast The protection module of the flash memory has been shut down, and the data of the flash memory is turned off when the assistant device is turned off. The state cannot be completed. ^The occurrence of the crash condition causes the personal digital assistant device to stop. [Invention content] Group and work::=,^目用::^- Kind of flash memory protection mode. = Free fast _ memory in the shutdown process flow AS- p U basket scorpion device, this protection model 冬句冬古Break into the early days The delay unit and the neo-mi2^ have a loss. When the action is sent, a notification signal is sent to the processor 1 to transmit the first-off signal to the logic ^, and the logical unit is stopped during the read/write operation. After the second shutdown signal to drive the electronic device to complete the shutdown action. Brother _# money second shutdown signal, that is, 1301237, the technical characteristics of the further entry and the achieved effects are assisted by the side view mode [Embodiment] Memory and diagram; =: according to the preferred embodiment of the invention - (4) reference symbol force! ^ shutdown method, wherein the phase_component will be the same, please refer to the second diagram, which is a schematic diagram of one of the inventions, this protection The module is suitable for the protection device sub-device of the physic body. The protection module of the invention is: the processor of the electronic device of the flash memory has stopped to have a function of the fast protection module. 23. The delay unit 22 and the processing of the logic single late single device 11 24 and the delay unit 22 and the machine when the device sends a notification signal to the delay to cause the processor 24 to stop: the delay unit 22 starts counting, and the processor 24 stops. 4 moves: ° own, body 26 and surrounding The component reads and writes the logic unit 23. After the item write operation, a first shutdown signal is transmitted to the logic unit 23 to electrically connect, and the notification is notified to the Huai stalk leaf number 23. This delay early element 22 may include an oscillator. Bamboo shoot

The preset shutdown time between minutes and °5 minutes is required to be set to I 1301237 logic unit 23, which is connected to the processor 24 and the delay 分别 respectively for receiving the third shutdown signal or the second shutdown ^ = sex two , the power supply unit 25 can be stopped = the local power = ° 23) according to the logic of the input 缟仏旒 to generate, determine to receive the first shutdown signal. Or the second shutdown letter two::: on the shutdown action Output the result. The third figure of the invention is the same as that of the invention. The method of the present invention provides the _ method (4) capital: According to ^ : ?r; 仏 notification signal to the processor and delay unit (step γ 百 先, first to shut down 彳 _1 ± ' notification signal for the operating terminal memory and peripheral components = write: through the itf 吏 processor start Stop the flashing module to stop the supply and return ===== source for the fine; any. The application is not difficult to leave the application of the invention. Modifications or changes 'all should be included in the attached 1301237 [Simplified description The first figure is a flow chart of the steps of the shutdown method of the personal digital assistant device of the prior art; the second figure is a schematic diagram of the protection module of the flash memory of the present invention; and the third figure is the invention Step flow chart of a shutdown method. [Main component symbol description] 100~120: step flow; 21: input unit; 22: delay unit; 23: logic unit; 24: processor; 25: power supply unit; ~330: Step flow.

Claims (1)

1301237 Replacement of the month of the moon], the scope of the patent application: , the type of flash memory _ module electricity to the processor, and the mention: = one year of reading and writing of the flash memory, and the fast one Shutdown signal; after the stop operation of the t-th generation, the first delay unit is generated, electrically connected to the input unit, used for the number, and starts counting to a preset shutdown signal; and _ seat Wangdi one shutdown = logic unit 'electricity Sexually connecting the delay unit and the second signal, the second signal, or the second shutdown signal to cause the electronic device to complete the protection module of the flash memory according to the second protection module, 4, ίΓϊίϋ And the money series unit is - (10) gate). _, and '5, the protection mode of the flash memory described in GidH1, the eight-in-one ▲ set includes the surface supply unit. 6. The protection mode of the flash memory according to item 5 of the benefit range is electrically==the machine action system controls the power supply to supply the power supply to the power supply system for shutting down the device. The steps include: · The money, and the notification letter 1301237 receives the notification signal, so that the processor stops reading and writing to one of the flash memory, and generates a first shutdown signal after the reading and writing operation stops; receiving the Notifying the signal, causing the delay unit to start counting to a predetermined shutdown time, thereby generating a second shutdown signal; and causing the electronic device to complete by receiving a first shutdown signal or the second shutdown signal by a logic unit A shutdown action. 8. The shutdown method of claim 7, wherein the electronic device is a number of assistants. 9. The shutdown method of claim 7, wherein the delay unit is a shock absorber. 10. The shutdown method of claim 7, wherein the logic unit is a gate or a gate. 11. The shutdown method of claim 7, wherein the electronic device further comprises a power supply unit. 12. The shutdown method of claim 11, wherein the shutdown operation controls the power supply unit to stop supplying power to the electronic device.