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401 results about "Serial advanced technology attachment" patented technology

Method and system for internal cache management of solid state disk based on novel memory

The invention provides a method and a system for internal cache management of a solid state disk based on a novel memory. The system for internal cache management of the solid state disk comprises an SATA (serial advanced technology attachment) interface controller, a microprocessor, a DRAM (dynamic random access memory), a local bus, a flash controller, an NAND flash and a PCRAM (phase change random access memory) cache. The PCRAM cache comprises a data block displacement area and a mapping table storage area, wherein the data block replacement area is used for storing data blocks displaced to the PCRAM cache from the DRAM, and the mapping table storage area is used for storing mapping tables among logic addresses and physical addresses of data pages. By the method for internal cache management of the SSD (solid state disk) based on the PCRAM, write cache for the solid state disk is realized to overcome read-write imbalance of the solid state disk, write performances are effectively improved, random write operation and wiping operation of the solid state disk are decreased, accordingly, the service life of the solid state disk is prolonged, and the integral I / O (input / output) performance of the solid state disk is improved.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI

I2C (Inter-Integrated Circuit) interface-based method for realizing NVME SSD (Non-Volatile Memory Express Solid State Disk) lighting through CPLD (Complex Programmable Logic Device)

The invention belongs to the field of server design and particularly discloses an I2C (Inter-Integrated Circuit) interface-based method for realizing the NVME SSD (Non-Volatile Memory Express Solid State Disk) lighting through a CPLD (Complex Programmable Logic Device). According to the I2C interface-based method for realizing the NVME SSD lighting through the CPLD, an I2C of a CPU (Central Processing Unit) is connected to the CPLD to decode the information sent by the CPU and carry out an indicator lamp function on the working condition of NVME SSD; the working condition of the NVME SSD can be effectively and intuitively seen like an ordinary SATA (Serial Advanced Technology Attachment) or SAS (Serial Attached SCSI (Small Computer System Interface)) hard disk, the working condition of the NVME SSD can be intuitively judged by seeing a condition indicating lamp on a user interface through naked eyes, which is very intuitive, convenient and fast; moreover, by adopting the scheme of the CPLD, the follow-up maintenance is easier, and if an additional function needs to be increased, only CPLD FW(Firm Ware) needs to be changed; and the method has the advantages of being low in specific cost, strong in practicality, convenient to maintain and flexible to debug.
Owner:SHENZHEN TONGTAIYI INFORMATION TECH CO LTD

Acquisition and processing system of global system for mobile communications for railway (GSM-R) network interference signals

The invention relates to the field of wireless communication, in particular to an acquisition and processing system of embedded global system for mobile communications for railway (GSM-R) network interference signals based on multiprocessors. The system comprises a processor, a power module, an analog to digital (AD) data acquisition module, a data and program storage module, a remote data transmission module and a data backup module, the AD data acquisition module coverts collected intermediate frequency analog signals of uplink frequency ranges and downlink frequency ranges of a GSM-R into digital signals to be sent to a digital signal processor (DSP) core in the processor, the DSP core operates and processes to store the digital signals in double data rate 2 (DDR2) chip in the data and program storage module, simultaneously the serial advanced technology attachment (SATA) connector stores the digital signals in a high-capacity rigid disk, the AD data acquisition module starts the intermediate frequency analog signals in an abnormal signal-collected frequency range when data acquisition is abnormal, and the AD data acquisition module is communicated with an upper computer through an Ethernet transceiver.
Owner:北京腾华科技有限公司
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