Mediatek Corporation

Chi-Wei Peng

Hong-Ching Chen

Li-Chun Tu

Tzu-Chieh Lin

Chien-Chung Wu

Hang-Kaung Shu

Yeow-Chyi Chen

Kuan-Hong Lin

A method for managing data stored in a content addressable memory (CAM) device includes at least the following steps: performing a partial write operation to overwrite only a portion of original write data stored in an entry of the CAM device, and storing updated write data in the entry; and updating a parity flag by a first value to indicate that parity data corresponding to the entry of the CAM device is invalid. Besides, a CAM system employing the method has a CAM device, a storage device and a parity flag controller.

Method and apparatus for controlling parity check function of content addressable memory device supporting partial write operation

The invention provides a method for performing copy back operations. First, a copy back command is sent to a flash memory for reading a first error correction code (ECC) data from a first address. The first ECC data is then received from the flash memory. The first ECC data is then decoded without performing error correction to calculate a fail count of the first ECC data. The fail count is then compared with a first threshold value. When the fail count is less than the first threshold value, a first program command is sent to the flash memory for storing the first ECC data to a second address of the flash memory. When the fail count is less than the first threshold value, the first ECC data is not sent back to the flash memory.

Method for performing copy back operations and flash storage device

A flash memory device includes a memory array and a memory control circuit. The memory array includes memory modules. Each memory module is located in a memory channel and includes a predetermined number of memory cells. The memory control circuit is coupled to the memory array via an address latch enable (ALE) pin and a command latch enable (CLE) pin. The ALE pin and the CLE pin are coupled to all of the memory cells and shared by all of the memory cells in the memory array.

Flash memory devices and methods for controlling a flash memory device

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Hsinchu County, Taiwan

Chi-Wei Peng