Abstract:
A chip module has a plurality of first ports, at least some or all of the first ports are first selection ports, and each first selection port may act as a write port or a read port. The chip module further includes a first control module. The first control module controls, based on a transmit/receive requirement of the chip module, the first selection port to be switched to a read port or a write port, to match the transmit/receive requirement of the chip module. The first selection port may selectively act as a read port or a write port, so that switching can be performed based on an operating state of the chip module, increasing a read/write bandwidth. The first control module controls an operating state of the first selection port, to flexibly adjust a quantity of read ports and a quantity of write ports of the chip module.
Abstract:
A method, an apparatus, and a communication node for suppressing output noises of peripheral component interconnect express (PCIe) devices in optical fiber communication is provided. The communication node includes a PCIe chip and a detection and control circuit connected to a transmitting end of the PCIe chip. The PCIe chip transmits an electrical signal by a transmitter of a first lane. The detection and control circuit detects a differential-mode voltage of the electrical signal. If the differential-mode voltage is lower than a first threshold, the detection and control circuit controls an optical module connected to the PCIe chip not to transmit an optical signal through the first lane of the optical module. When a PCIe system includes the communication node, output noises of the transmitter is suppressed, and a normal optical fiber communication link is ensured.
Abstract:
An equalization training method and apparatus are described. The method includes obtaining a training rate of each of a master chip and a slave chip in a target phase of equalization training. The method also includes determining a target rate threshold interval within which the training rate in the target phase falls, determining, based on a correspondence between N+1 rate threshold intervals and N+1 equalization timeout periods, a target equalization timeout period corresponding to the target rate threshold interval, and configuring the target equalization timeout period as an equalization timeout period in the target phase. Accordingly, an equalization timeout period used for equalization training can be configured for each equalization training process, so that the configured equalization timeout period better conforms to a training rate currently used for link negotiation, to ensure that an equalization parameter is found within the configured equalization timeout period, improving an equalization training success rate.
Abstract:
This application provides a memory training method, a memory controller, a processor, and an electronic device. The memory controller keeps transmission delays of N DQs unchanged, adjusts a transmission delay of a DQS, and determines a maximum DQS transmission delay and/or a minimum DQS transmission delay of the DQS when all data carried in the N DQs is correctly transmitted. The memory controller adjusts the transmission delay of the DQS to a target DQS transmission delay between the maximum DQS transmission delay and the minimum DQS transmission delay. The method helps quickly align relative timing positions between the DQS and the N DQs. Therefore, memory training may be repeatedly performed in a working process of the processor, so that the N DQs keep enough timing margins.
Abstract:
A fast equalization method is provided, which includes: storing a receive parameter and a transmit parameter, of each of a primary chip and a secondary chip, that meet a link stability requirement and that are obtained when link equalization is previously performed; and when determining that link equalization needs to be performed, configuring, as first fast equalization timeout duration, a larger value in initial fast equalization timeout duration of the primary chip and initial fast equalization timeout duration of the secondary chip, and invoking the foregoing receive and transmit parameters, so that the primary chip and the secondary chip perform a current time of link equalization based on the first fast equalization timeout duration and the foregoing transmit and receive parameters.
Abstract:
A communication method is applicable to a processing apparatus that includes a processor and a communications interface. The processor determines a first parameter corresponding to the communications interface, wherein the communications interface is connected to at least one storage apparatus and communicates with the at least one storage apparatus based on the first parameter. In this way, the processor determines a parameter used to improve a quality of signal transmission and integrity during communication between the processing apparatus and the at least one storage apparatus.
Abstract:
A retimer application system is provided, which includes a primary chip, a retimer, and a secondary chip. After first link training is completed, the retimer is configured to store, in a first storage area, an equalization parameter corresponding to each rate during the first link training, and data stored in the first storage area is not lost when the retimer performs a reset operation. The retimer is further configured to: receive a reset indication, and perform the reset operation according to the reset indication. The primary chip and the secondary chip are configured to perform second link training triggered by the reset indication. During the second link training, the retimer is further configured to: invoke the equalization parameter, and transparently transmit a training sequence in the second link training to the primary chip or the secondary chip based on the equalization parameter.
Abstract:
A chip module has a plurality of first ports, at least some or all of the first ports are first selection ports, and each first selection port may act as a write port or a read port. The chip module further includes a first control module. The first control module controls, based on a transmit/receive requirement of the chip module, the first selection port to be switched to a read port or a write port, to match the transmit/receive requirement of the chip module. The first selection port may selectively act as a read port or a write port, so that switching can be performed based on an operating state of the chip module, increasing a read/write bandwidth. The first control module controls an operating state of the first selection port, to flexibly adjust a quantity of read ports and a quantity of write ports of the chip module.
Abstract:
Embodiments of the present disclosure provide a method for optimizing a flash memory chip and a related apparatus. The method comprises, after completing write training of a nonvolatile flash interface (NFI) and establishing a data strobe signal (DQS) trigger point that triggers a memory to identify an electrical level state of a write data signal (DQ) corresponding to the DQS trigger point, determining whether a trigger condition for monitoring the NFI is met, wherein the trigger condition is related to working environmental data of the NFI; upon determining that the trigger condition for monitoring the NFI is met, writing test data to the memory and performing a margin test on the NFI to determine whether the NFI passes a margin test; and upon determining that the NFI does not pass the margin test, initiating interface retraining of the NFI. In this way, the NFI bus channels can be optimized without disk disconnection.
Abstract:
An equalization training method and apparatus are described. The method includes obtaining a training rate of each of a master chip and a slave chip in a target phase of equalization training. The method also includes determining a target rate threshold interval within which the training rate in the target phase falls, determining, based on a correspondence between N+1 rate threshold intervals and N+1 equalization timeout periods, a target equalization timeout period corresponding to the target rate threshold interval, and configuring the target equalization timeout period as an equalization timeout period in the target phase. According to this method, an equalization timeout period used for equalization training can be flexibly configured for each equalization training process, so that the configured equalization timeout period better conforms to a training rate currently used for link negotiation, to better ensure that an equalization parameter is found within the configured equalization timeout period, thereby improving an equalization training success rate.