Mediatek Corporation

Chuan Liu

Pao-Ching Tseng

Shu-Fang Tsai

Jeng-Horng Tsai

Chuan-Cheng Hsiao

Po-Ching Lu

Tse-Hsiang Hsu

Kuan-Hua Chao

Wen-Hsuen Kuo

Chih-Ching Chen

Shiue-Shin Liu

A method for managing a multi-channel memory device includes at least following steps: when the multi-channel memory device is controlled to operate in an M-channel mode, reserving a partial memory space in the multi-channel memory device that is not used under the M-channel mode, where M and N are positive integers, and M is smaller than N; and when the multi-channel memory device is controlled to switch from the M-channel mode to an N-channel mode, accessing data in the reserved partial memory space used under the N-channel mode.

Method for managing multi-channel memory device to have improved channel switch response time and related memory control system

A method for managing a multi-channel memory device includes at least following steps: when the multi-channel memory device is controlled to operate in an M-channel mode, reserving a partial memory space across N memory channels of the multi-channel memory device, where the reserved partial memory space is not used under the M-channel mode, M and N are positive integers, and M is smaller than N; and when the multi-channel memory device is controlled to switch from the M-channel mode to an N-channel mode, accessing data in the reserved partial memory space across the N memory channels used under the N-channel mode. The method for managing a multi-channel memory device can improve switch response time.

A channel activating method and a peripheral device are provided for activating a serial transmission channel to retrieve at least one firmware instruction from a host. The peripheral device includes a serial transmission port coupled to the host, a microprocessor coupled to the serial transmission port for performing functions of the peripheral device according to the firmware instruction, a memory for holding the firmware instruction, a trigger generator for generating a trigger signal by monitoring a control signal received from the host via the serial transmission port, and a signal generator, coupled to the trigger generator, for generating an indication signal to the host via the serial transmission port according to the trigger signal to activate the serial transmission channel.

Channel activating method and peripheral device performing the same

A clock generation device provided for a transmitter is provided and comprises a clock generator, a calculator and a first phase locked loop (PLL) circuit. The clock generator generates a first clock signal. The calculator calculates a frequency difference between the first and second clock signals. The first PLL circuit generates an output clock signal according to a first reference clock signal related to the first clock signal, and a frequency of the output clock signal is changed according to the frequency difference. The transmitter transmits data according to the output clock signal.

Clock generation devices and methods

A clock generation circuit is provided and includes a phase locked loop (PLL) and a calibrator. The PLL is arranged to receive a first clock signal and generate the output clock signal. The PLL adjusts the frequency of the output clock signal according to a control signal. The calibrator is arranged to receive the output clock signal and a second clock signal, execute a frequency calibration between the output clock signal and the second clock signal, and generate the control signal according to results of the frequency calibration.

Communication systems, clock generation circuits thereof, and method for generating clock signal

A method of correcting corrupted primitives transmitted between a serial advanced technology attachment (SATA) host and a SATA device includes analyzing a current state, a previously transmitted primitive, or a previously received primitive; selecting at least one candidate primitive according to at least one of the current state, the previously transmitted primitive and the previously received primitive; predicting the identity of a current primitive according to at least one candidate primitive and a received current primitive; and replacing the corrupted primitive with the predicted primitive when the predicted primitive is different from the current primitive.

SATA primitive prediction and correction

A method for processing noise interference in a serial advanced technology attachment (SATA) interface. In the method, when a receiver does not receive a SOF primitive (start of frame primitive) but does receive an EOF primitive (end of frame primitive) or WTRM primitive (wait for frame termination primitive), the receiver outputs a R_ERR primitive (reception error primitive) to enable a transmitter to resend original data and thus to eliminate the interference. In addition, if the transmitter detects an error during the data transmission, a HOLD primitive (hold data transmission primitive) will be issued to temporarily stop the data transmission.

Method for processing noise interference in data accessing device with serial advanced technology attachment interface

A method for processing noise interference in a serial AT Attachment (SATA) interface. The method includes the steps of detecting whether there is an error in CRC (Cyclic Redundancy Check) checksum or whether an R_ERR primitive (reception error primitive) is received, detecting whether a FIS (Frame Information Structure) is a data type if there is any error and returning back to error state detecting step if there is no any error, detecting whether the FIS is a ATAPI packet command CDB (Command Descriptor Block) when the FIS is the data format, and writing a special tag to the CDB and returning back to the error detecting step.

Method for processing noise interference

A method for processing noise interference in a serial AT Attachment (SATA) interface. In the method, when a receiver does not receive a SOF primitive (start of frame primitive) but does receive an EOF primitive (end of frame primitive) or WTRM primitive (wait for frame termination primitive), the receiver outputs a R_OK primitive (reception with no error primitive) and sets a error flag to report to the application layer of the receiver to eliminate the interference.

Method for processing noise interference in data accessing device with serial advanced technology attachment (SATA) interface

The invention discloses a signal detection apparatus and method thereof for detecting whether an input signal of a set of serial ATA signals is an out of band (OOB) signal. The signal detection apparatus includes a calibrated clock generation device, a signal processor, and a logic determination device. The calibrated clock generation device generates a sampling clock signal according to a predetermined clock signal. The signal processor generates a plurality of detection results based on the sampling clock signal and the input signal. The logic determination device receives the plural of detection results and determines whether the input signal is the OOB signal.

Signal detection apparatus and method thereof

A signal generating circuit of a peripheral device for sending a frame information structure (FIS) to a host via a serial transmission channel to change a busy bit representing the state of the peripheral device. The signal generating circuit includes a trigger generator and a signal generator. The trigger generator generates a trigger signal by monitoring a control signal of the signal generating circuit. The signal generator, coupled to the trigger generator, generates the indication according to the trigger signal.

Signal generating circuit and related method for activating physical channel between host and peripheral device

A method and circuit for reducing SATA (Serial Advanced Technology Attachment) transmission data errors by adjusting the period of sending two consecutive ALIGN Primitives. The method reads a counting value of an 8b/10b coding error counter at a predetermined period and adjusts the period of sending two consecutive ALIGN Primitives according to the counting value. Because the system dynamically adjusts the period of sending two consecutive ALIGN Primitives according to the channel condition, the SATA transmission data errors can be reduced.

Method and circuit for reducing SATA transmission data errors by adjusting the period of sending align primitives

A method of correcting corrupted primitives transmitted between a serial advanced technology attachment (SATA) host and a SATA device includes detecting the presence of a corrupted primitive; analyzing a current state, a previously transmitted primitive, or a previously received primitive; selecting at least one candidate primitive according to at least one of the current state, the previously transmitted primitive, and the previously received primitive; predicting the identity of the corrupted primitive according to at least one candidate primitive and the corrupted primitive; and replacing the corrupted primitive with the predicted primitive.

A method for processing noise interference in a serial AT Attachment (SATA) interface. In the method, when a receiver does not receive a SOF primitive (start of frame primitive) but does receive an EOF primitive (end of frame primitive) or WTRM primitive (wait for frame termination primitive), the receiver outputs a R_ERR primitive (reception error primitive) to enable a transmitter to resend original data and thus to eliminate the interference. In addition, if the transmitter detects an error during the data transmission, a HOLD primitive (hold data transmission primitive) will be issued to temporarily stop the data transmission.

Growing community of inventors

Hsinchu, Taiwan

Chuan Liu