Mtekvision Co., Ltd.

Nxp Usa, Inc.

Malcolm D Stewart

Daniel C Laroche

Ali Osman Ors

Denny Wong

Richard Beriault

Michael J Rochford

Rabindra Guha

Eric Giernalczyk

Trevor Graydon Burton

Eric Giernalcyzk

An asymmetrical processing system is provided. The processor has a vector unit comprised of one or more computational units coupled with a vector memory space and a scalar unit coupled with a data memory space and the vector memory space, the scalar unit accessing one or more memory locations within the vector memory space.

Asymmetrical processor memory architecture

A method, system, and apparatus are provided for managing multiple DMA channels in different DMA modes by processing command sequences associated with different virtual DMA channels and stored in a command queue structure, such that a first command sequence is processed to directly configure one or more first register descriptors at a context store to implement a direct configuration DMA mode for a first virtual channel, a second command sequence is processed to initiate a fetch of a linked list descriptor chain for loading one or more second register descriptors at a second DMA channel context store register to implement a link list configuration DMA mode for a second virtual channel, and a third command sequence is processed to retrieve an instruction program for loading into the command queue structure and execution by the DMA controller to implement a program configuration DMA mode for a third virtual channel.

Multi-channel DMA system with command queue structure supporting three DMA modes

A method and device for memory access in processors is provided. A processor, comprising a plurality of computational units, is capable of executing a single instruction on multiple pieces of data simultaneously (SIMD). A read operation is initiated to load data from memory into the plurality of computational units (CUs) arranged into a plurality of CU groups. The memory is arranged into a plurality of memory macro-blocks each associated with a respective CU group of the plurality of CU groups. For each CU group a respective first memory address is determined and for each CU group, the data in the associated memory macro-block is accessed at the respective first memory address.

Memory access for a vector processor

A reconfigurable vector processor is described that allows the size of its vector units to be changed in order to process vectors of different sizes. The reconfigurable vector processor comprises a plurality of processor units. Each of the processor units comprises a control unit for decoding instructions and generating control signals, a scalar unit for processing instructions on scalar data, and a vector unit for processing instructions on vector data under control of control signals. The reconfigurable vector processor architecture also comprises a vector control selector for selectively providing control signals generated by one processor unit of the plurality of processor units to the vector unit of a different processor unit of the plurality of processor units.

Apparatus and method of vector unit sharing

An electronic circuit for performing logic operations is provided. The electronic circuit comprises a logic gate having at least two binary inputs adapted to receive corresponding input binary digits; an output for outputting an output signal; signal transmission means between said input and said output; a logic circuit coupled to said transmission means and having an input capacitance, and capacitance decoupling means between said logic circuit and said transmission means for decoupling the input capacitance of said logic circuit from said transmission means.

Adder with reduced capacitance

A data processor apparatus comprises a plurality of data receiving means each for receiving data from a data source; a computational element coupleable to each of said data receiving means for performing an operation on said data; and a controller for controlling the flow of data from each data receiving means to the computational element.

Two-dimensional processor array of processing elements

A data processor apparatus and memory interface comprises a memory, a plurality of memories, an interface for controlling access to the memories by a device, and an identifier identifying at least a memory location in one memory and a memory location in another memory. The interface is responsive to the identifier to condition the memory locations for receiving data and/or for transferring data therefrom. This arrangement eliminates the need for a dedicated broadcast bus from the array controller to each processor unit (PU), which thereby enables the area/space required to accommodate the data processor to be significantly reduced.

Data processor apparatus and memory interface

A data processor apparatus and memory interface comprises a memory, a plurality of processor units couplable to receive data from the memory, and control means for controlling transmission of data from the control means to each processor unit. The control means for controlling operations of the data processor units is arranged to transmit data intended for each processor unit (i.e. broadcast data) to the memory, and is adapted to control each processor unit to receive the broadcast data from the memory. This arrangement eliminates the need for a dedicated broadcast bus from the array controller to each PU, which thereby enables the area/space required to accommodate the data processor to be significantly reduced.

A data processor apparatus comprises a plurality of processor elements, a memory having a plurality of parts, and a first switching element associated with the first processor element for switchably coupling the first processor element to its associated memory part for at least one of read and write access. The first switching element has an input port, an output port, a first port being coupled to a second switching element, the second switching element being associated with the second processor element for switchably coupling the second processor element to its associated memory part, a second port being coupled to a third switching element, the third switching element being associated with the third processor element for switchably coupling the third processor element to its associated memory part, a first switch means for selectively coupling the first port to one of the input port and the output port, and a second switch means for selectively coupling the second port to one of the input port and the output port.

Interconnect switch assembly with input and output ports switch coupling to processor or memory pair and to neighbor ports coupling to adjacent pairs switch assemblies

A switching element for switchably coupling a two-dimensional array of circuit elements comprises an input, an output, means for switchably coupling the input to the output; a first input/output port, a second input/output port, a third input/output port, and a fourth input/output port, each input/output port being switchably coupled to the input, the output, and each other, wherein the first and third input/output ports are spaced apart along a first axis, and the second and fourth input/output ports are spaced apart along a second axis, wherein the second axis traverses the first axis between the first and third input/output ports.

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Ottawa, Canada

Malcolm D Stewart