80 results about "External Bus Interface" patented technology

A machine tool controller is provided that includes a processor configured to execute a sequence of instructions in accordance with an operating program and a user program. A volatile memory temporarily stores instructions and data during execution of the sequence of instructions by the processor, and is coupled to the processor via a first interface. A first non-volatile memory stores the operating program and is coupled to the processor via a second interface. A second non-volatile memory stores the user program and is coupled to the processor via a third interface. A video controller is configured to control a user display in accordance with display data generated by the processor and is coupled to the processor via a fourth interface. A dual-port memory is coupled to the processor via a fifth interface and couples a serial bus controller configured to control communications with an external device via a serial bus to the processor. An external bus interface is configured to communicate control commands for controlling a machine tool generated by the processor via an external bus and is coupled to said processor via a sixth interface.

The invention relates to a parallel microprocessor and a corresponding realization method which are based on FPGA development. The parallel microprocessor comprises a CPU which is a 32-bit fixed-point CPU formed by a fetch decoding unit, a process management unit and an integer instruction execution unit; a communication module formed by a plurality of units of LINK channels and In/Out controllers; an arbitration controller used for arbitrating internal and external address buses and a data bus of the CPU; an external memory interface used for providing reading/writing time-sequence logic for an external memory; an interruption/time-sequence controller used for providing timing and interruption for the CPU; an internal memory used for providing the instructions of the CPU and quickly accessing data. The CPU is also provided with a floating point unit (FPU) combining the 32-bit fixed-point CPU to form a 64-bit floating point CPU. The 32-bit fixed-point parallel microprocessor and the 64-bit floating point parallel microprocessor provided by the invention work stably, bring convenience for system modification and debugging, accelerate verification speed and provide a low-cost operation platform for programs written in OccamII language.

The invention discloses a bill image processing apparatus for an optical character recognition system, which comprises internal bus, memory unit and a core processor, for storing optical recognition character (OCR) font template library, page template library and bill image processing program, and external bus interface expanding unit for the bridge connection of the core processor and the host computer bus, wherein the core processor is dedicated to the use of bill image processing or recognition. The device provided by the invention can substantially increase the efficiency of system image processing. íí

A memory controller for a phase change memory (PCM) that can be used on a storage bus interface is described. In one example, the memory controller includes an external bus interface coupled to an external bus to communicate read and write instructions with an external device, a memory array interface coupled to a memory array to perform reads and writes on a memory array, and an overwrite moduleto write a desired value to a desired address of the memory array.

An external Auxiliary Execution Unit (AXU) interface is provided between a processing core disposed in a first programmable chip and an off-chip AXU disposed in a second programmable chip to integrate the AXU with an issue unit, a fixed point execution unit, and optionally other functional units in the processing core. The external AXU interface enables the issue unit to issue instructions to the AXU in much the same manner as the issue unit would be able to issue instructions to an AXU that was disposed on the same chip. By doing so, the AXU on the second programmable chip can be designed, tested and verified independent of the processing core on the first programmable chip, thereby enabling a common processing core, which has been designed, tested, and verified, to be used in connection with multiple different AXU designs.

An advantageous set of external interfaces for home video game platform provide modularity and expandability while maintaining and preserving the proprietary nature of the platform. A disk drive interface provides flexible communications with an internal disk drive. Various serial bus interfaces provide expandability and interconnectability with a variety of internal and external devices including, for example, flash memory, broadband adapters, modems, and various other devices. A 4-port game controller interface provides serial interconnectability with handheld game controllers and various other input/output device. Power supply, digital and analog audio/video connections, and parallel memory expansion connections are also provided.

The invention discloses a Vcom (voltage of common electrode) adjustment device of an MIPI (mobile industry processor interface) liquid crystal module on the basis of FPGA (field programmable gate array). The Vcom adjustment device comprises an upper computer interaction module, an ARM (advanced RISC machine) controller and an MIPI liquid crystal module to be measured. The Vcom adjustment device is characterized by comprising an FPGA signal unit, the upper computer interaction module is connected with the ARM controller through an internet access, the ARM controller is connected with the FPGA signal unit through an external bus interface, and the FPGA signal unit is connected with the MIPI liquid crystal module to be measured. The MIPI bridge chip in a multichannel testing system of the liquid crystal module can be omitted, OTP (one time password) development efficiency of the MIPI liquid crystal module is improved, various requirements of the liquid crystal module on the basis of the MIPI protocol are met, and production efficiency of the liquid crystal module is improved.

The invention discloses an external memory interface consisting of a control unit, an address output channel, a reading-writing and chip-selection unit, a data input channel and a data output channel, wherein, the three 32-bit address mapped registers are designed in the control unit, which ensures that a 32-bit digital signal processor has the ability of interacting with a multiple bit-width external memory. The interface can synchronously make access operations to an 8-bit external memory, a 16-bit external memory and a 32-bit external memory, thereby improving the extensibility and the working flexibility of the 32-bit digital signal processor; at the same time, the interface has a simple structure, is easy to control and miniaturize, and is convenient to be realized on the chips.

An adaptive memory system is provided for improving the performance of an external computing device. The adaptive memory system includes a single controller, a first memory type (e.g., Static Random Access Memory or SRAM), a second memory type (e.g., Dynamic Random Access Memory or DRAM), a third memory type (e.g., Flash), an internal bus system, and an external bus interface. The single conlrollei is configured to: (i) communicate with all three memory types using the internal bus system; (ii) communicate with the external computing device using the external bus interface; and (iii) allocatecache-data storage assignment to a storage space within the first memory type, and after the storage space within the first memory type is determined to be full, allocate cache-data storage assignment to a storage space within the second memory type.

The invention discloses a module for realizing an SPI interface, comprising a baseband chip, at least one peripheral and a simulation switch, wherein the external bus interface of the baseband chip simulates a white-enable pin, an output-enable pin, a universal input pin, a universal output pin, a first data signal pin and a second data signal pin; the write-enable pin and the output-enable pin are respectively connected with the input end of the simulation switch, the output end of the simulation switch serving as the clock signal pin of a serial peripheral interface (SPI) is connected with the peripheral; the universal input pin and the universal output pin which serve as chip selection signal pins are respectively connected with the peripheral; and the first data signal pin and the second data signal pin respectively serving as a master out salve in (MOSI) pin and a master in slave out (MISO) pin are connected with the peripheral. The invention can enrich interface resources for a platform, enhances platform interface usability, saves mobile phone cost and improves PCB space utilization rate to a very large extent.

The invention relates to a signal demodulation method of a portable multifunctional optical fiber hydrophone, comprising the following steps: three-path analog input is accessed into an A/D conversion module after passing through a signal conditioning circuit, the A/D conversion module is connected with an FPGA, four-path D/A conversion module is connected with the FPGA, an output end of the D/A conversion module is connected with an output analog voltage signal of the signal conditioning circuit, an FPGA chip is connected with a DSP chip by an external bus interface, and the FPGA is used for controlling the DSP to reset, start and load program; a flash memory is internally stored with 3*3 coupler digital demodulation algorithm DSP program and PGC quadrature complex demodulation algorithm DSP program which are uploaded into the DSP by the FPGA according to the selection of the user, so that one-path 3*3 coupler digital demodulation or three-path PGC digital demodulation can be realized. The signal demodulation method has the advantages of low energy consumption and cost as well as being portable and multifunctional, so as to provides a reliable, fast and convenient tool for the study of the optical fiber hydrophone and array thereof.

The invention relates to an FPGA (Field Programmable Gate Array) program multi-image loading method based on an ARM. The loading method comprises the following steps: 1, packing field-programmable gate array files with different signal formats in a computer through a field-programmable gate array compiler; 2, writing the packed field-programmable gate array files into a flash memory in the computer by an ARM processor via a serial peripheral interface; 3, writing external bus interface storage address information and corresponding external bus interface register addresses of the files demanded to be loaded into external bus interfaces by the ARM processor when demanding to load one of the packed field-programmable gate array files, and loading the necessary field-programmable gate array files into the random access memory of the field-programmable gate array chip from the flash memory by the field-programmable gate array chip. Fast switch and power down protection of display module test signals can be simultaneously realized by the loading method.

The invention relates to a universal nonvolatile memory control device for a system on a chip. The control device comprises an external bus interface unit, a register control unit, an erasing unit and a storage control and interface unit. The external bus interface unit is used for collecting control signals and data of an external bus as well as analyzing the signals and data; the register control unit is used for read-write control of all registers, wherein the register data is transmitted to the storage control and interface unit for use by a finite-state machine of the storage control and interface unit; the erasing unit is used for processing bus signals transmitted by the external bus interface unit; the storage control and interface unit comprises two finite-state machines: one is a write data width conversion state machine, while the other is a master control state machine for read, write and erase control of various nonvolatile memories. The invention provides the universal nonvolatile memory control device for the system on the chip good in compatibility and simplified in design process.

The present invention intends to provide a high-performance multi-processor device in which independent buses and external bus interfaces are provided for each group of processors of different architectures, if a single chip includes a plurality of multi-processor groups. A multi-processor device of the present invention comprises a plurality of processors including first and second groups of processors of different architectures such as CPUs, SIMD type super-parallel processors, and DSPs, a first bus which is a CPU bus to which the first processor group is coupled, a second bus which is an internal peripheral bus to which the second processor group is coupled, independent of the first bus, a first external bus interface to which the first bus is coupled, and a second external bus interface to which the second bus is coupled, over a single semiconductor chip.

The invention related to computer technique area. It uses removable storage based on computer external bus interface as storage media for distributing software. The data with different security requirements are stored in three areas, that are common area, read only area and system area. The common area can be read out and written in. Using communication protocol of standard removable storage, can be accessed the common area and read only area. But the system area can be accessed only by special communication protocol defined between encipher and decipher modules on computer end and encipher and decipher modules on the end of removable storage. The removable storage itself possesses enciphering capability by hardware. The invention provides merits of high security, easy operation and lower cost.

The invention discloses an oscilloscope with a function of dynamically recording a waveform image. The oscilloscope comprises an analog signal conditioning unit, an analog/digital (A/D) conversion unit, a triggering unit, a high-speed logic unit, a sampling buffering unit, a central processing unit (CPU) control unit, a system storage unit, a display unit, an external bus interface unit, a display synthesis unit, a dynamic recording unit and a dynamic playback unit, wherein a tested signal is sent into the triggering unit and the A/D conversion unit respectively after being conditioned by the signal conditioning unit; the high-speed logic unit controls the A/D conversion unit to sample under the triggering control of the triggering unit; the sampled data is transmitted to the sampling buffering unit through the high-speed logic unit; the high-speed logic unit transfers waveform data from the sampling buffering unit to the CPU control unit; and the waveform data is converted into image data corresponding to the pixel of a screen by the CPU control unit. The oscilloscope has the advantage that: an aim of recording a waveform is fulfilled by adopting an image recording method; and when recording the waveform, the oscilloscope is not restricted by the oscilloscope storage depth and the number of channels.

The invention discloses a multi-chip packaging (MCP) memory module. The MCP memory module of the invention not only packages a plurality of types of memorizers for memory but also packages an interface conversion controller and a smart card chip; wherein, the smart card chip can realize relevant safety business of the smart card chip; the interface conversion controller can realize interface specification conversion when the outer part interacts with a plurality of types of memorizers and the smart card chip through an external interface so that the MCP memory module is not limited to the memory function but realizes functional extension. Moreover, the interface conversion controller can realize interface specification conversion, so the external interface arranged on the MCP memory module of the invention can correspond to a plurality of types of memorizers and the smart card chip one by one. Preferably, less external interfaces are needed, e.g. one or two, so that the number of external interface pins of the MCP memory module can be reduced.

Methods, apparatuses, and computer program products for managing a storage device using a hybrid controller are provided where the storage device comprises an internal peripheral component interconnect express (PCIe) interface to control solid state memory within the storage device. In particular embodiments, the storage device includes a first external interface configured to establish an external PCIe link and a second external interface configured to establish at least one of an external serial attached small computer system interface (SAS) link and an external serial advanced technology attachment (SATA) link. Embodiments include receiving from an external source, by the hybrid controller, a first command at the first external interface and a second command at the second external interface; and concurrently implementing, by the hybrid controller, the first command using a PCIe protocol and the second command using one of a SAS protocol and a SATA protocol.

An apparatus for managing Ethernet physical layer registers and a method thereof are provided. The apparatus comprises a central processing unit (CPU) with an external bus interface function, and an interface conversion unit which is connected to the CPU through the external bus interface, converts the external bus interface into management data input/output (MDIO) interface and performs communications with the physical layer apparatus.