摘要:
Some embodiments of the invention provide a configuration/debug network for configuring and debugging a configurable integrated circuit (IC). The configurable IC in some embodiments includes configurable resources (e.g., configurable logic resources, routing resources, memory resources, etc.) that can be grouped in conceptual configurable tiles that are arranged in several rows and columns. Some embodiments allow tiles to be individually addressed, globally addressed (i.e., all addressed together), or addressed based on their tile types. The configurable IC includes numerous user-design state elements (“UDS elements”) in some embodiments. In some embodiments, the configuration/debug network has a streaming mode that can direct various circuits in one or more configurable tiles to stream out their data during the operation of the configurable IC. Accordingly, in the embodiments where the configuration/debug network connects to some or all of the UDS elements, the configurable/debug network can be used in a streaming mode to stream out data from the UDS elements of the tiles, in order to identify any errors in the operation of the IC. In other words, the streaming of the data from the UDS elements can be used to debug the operation of the configurable IC. In some embodiments, the configuration/debug network has a broadcasting mode that can direct various resources (e.g., memories, storage elements, etc.) in one or more configurable tiles to store the same data. For instance, the broadcasting mode can be used to initialize the memory blocks in the configurable memory tiles.
摘要:
Some embodiments of the invention provide a configurable integrated circuit (IC) that has several configurable circuits for configurably performing different operations. During the operation of the IC, each particular configurable circuit performs a particular operation that is specified by a particular configuration data set for the particular configurable circuit. While the IC operates and a first set of configurable circuits performs a first set of operations, configuration data is loaded from the outside of the IC for configuring a second set of configurable circuits. In some embodiments, the configurable IC includes a configuration network for rapid loading configuration data in the IC from outside of the IC. In some of these embodiments, the configuration network is a pipelined network. Also, the IC of some embodiments includes a configuration controller for retrieving configuration data from outside of the IC, formulating configuration data sets, and routing the configuration data sets to the second set of configurable circuits over the configuration network.
摘要:
Some embodiments provide a method of presenting virtual memory as narrower and deeper than a physical memory. The method receives a memory address location including a set of real memory address bits and a set of virtual memory position bits. The method retrieves an original memory word from a physical memory using the real memory address bits. The method shifts the original memory word by an amount determined by the virtual memory position bits by using a barrel shifter, creating a shifted memory word. The method reads a part of the shifted memory word.
摘要:
Some embodiments of the invention provide a configurable integrated circuit (“IC”). This IC includes several configurable circuits for receiving configuration data and configurably performing a set of operations based on the configuration data. It also includes several hybrid circuits. Each particular hybrid circuit can interchangeably perform as either a logic circuit or an interconnect circuit in the configurable IC.
摘要:
Some embodiments provide a configurable integrated circuit (IC) that has several configurable circuits and several user design state (UDS) circuits. The UDS circuits store user-design state values. The configurable IC also includes a debug network communicatively coupled to the UDS circuits. The debug network is for retrieving the user-design state values of several UDS circuits at various stoppages of the operation of the IC without retrieving configuration data that is used to configure the configurable circuits of the IC. The retrieved user-design state values at each stoppage are used as the checkpointed state of the IC while debugging the IC. In some embodiments, the debug network allows the checkpointing of only certain portions of the configurable IC.
摘要:
Some embodiments of the invention provide a configurable integrated circuit (IC) that has several configurable circuits for configurably performing different operations. During the operation of the IC, each particular configurable circuit performs a particular operation that is specified by a particular configuration data set for the particular configurable circuit. While the IC operates and a first set of configurable circuits performs a first set of operations, configuration data is loaded from the outside of the IC for configuring a second set of configurable circuits. In some embodiments, the configurable IC includes a configuration network for rapid loading configuration data in the IC from outside of the IC. In some of these embodiments, the configuration network is a pipelined network. Also, the IC of some embodiments includes a configuration controller for retrieving configuration data from outside of the IC, formulating configuration data sets, and routing the configuration data sets to the second set of configurable circuits over the configuration network.
摘要:
Some embodiments provide a configurable IC that includes several configurable tiles. The configurable tiles include several interior tiles within the interior of an arrangement of configurable tiles. The arrangement has several sides that define the exterior boundary of the arrangement. In some embodiments, each configurable interior tile includes a set of configurable logic circuits, a set of configurable input-select circuits for selecting inputs to the configurable logic circuits, and a set of configurable routing interconnect circuits for routing signals between the configurable logic circuits. The set of configurable input-select circuits in each interior tile has a set of inputs that are supplied by a set of asymmetric locations in the configurable IC. Any distance between any input-select circuit in any interior tile and any boundary-defining side of the tile arrangement is greater than any distance between any particular input-select circuit in any interior tile and any circuit that provides an input to the particular input-select circuit. Also, in some embodiments, each configurable interior tile includes a set of configurable logic circuits and a set of configurable routing interconnect circuits for routing signals between the configurable logic circuits. The set of configurable logic circuits in each interior tile has a set of outputs that are supplied to a set of asymmetric locations in the configurable IC. Any distance between any logic circuit in any interior tile and any boundary-defining side of the tile arrangement is greater than any distance between any particular logic circuit in any interior tile and any circuit that receives an output of the particular logic circuit. In some embodiments, the set of asymmetric locations is a set of locations that includes at least one location that has no symmetrical relationship with any other location in the set. In some embodiments, each input-select circuit has at least one output that is supplied to one configurable logic circuit.
摘要:
Some embodiments of the invention provide a configurable integrated circuit (IC) that has several configurable circuits for configurably performing different operations. During the operation of the IC, each particular configurable circuit performs a particular operation that is specified by a particular configuration data set for the particular configurable circuit. While the IC operates and a first set of configurable circuits performs a first set of operations, configuration data is loaded from the outside of the IC for configuring a second set of configurable circuits. In some embodiments, the configurable IC includes a configuration network for rapid loading configuration data in the IC from outside of the IC. In some of these embodiments, the configuration network is a pipelined network.
摘要:
Some embodiments of the invention provide a configuration/debug network for configuring and debugging a configurable integrated circuit (IC). The configurable IC in some embodiments includes configurable resources (e.g., configurable logic resources, routing resources, memory resources, etc.) that can be grouped in conceptual configurable tiles that are arranged in several rows and columns. Some embodiments allow tiles to be individually addressed, globally addressed (i.e., all addressed together), or addressed based on their tile types. The configurable IC includes numerous user-design state elements (“UDS elements”) in some embodiments. In some embodiments, the configuration/debug network has a streaming mode that can direct various circuits in one or more configurable tiles to stream out their data during the operation of the configurable IC. Accordingly, in the embodiments where the configuration/debug network connects to some or all of the UDS elements, the configurable/debug network can be used in a streaming mode to stream out data from the UDS elements of the tiles, in order to identify any errors in the operation of the IC. In other words, the streaming of the data from the UDS elements can be used to debug the operation of the configurable IC. In some embodiments, the configuration/debug network has a broadcasting mode that can direct various resources (e.g., memories, storage elements, etc.) in one or more configurable tiles to store the same data. For instance, the broadcasting mode can be used to initialize the memory blocks in the configurable memory tiles.
摘要:
Some embodiments of the invention provide a configurable integrated circuit (IC) that has several configurable circuits for configurably performing different operations. During the operation of the IC, each particular configurable circuit performs a particular operation that is specified by a particular configuration data set for the particular configurable circuit. While the IC operates and a first set of configurable circuits performs a first set of operations, configuration data is loaded from the outside of the IC for configuring a second set of configurable circuits. In some embodiments, the configurable IC includes a configuration network for rapid loading configuration data in the IC from outside of the IC. In some of these embodiments, the configuration network is a pipelined network. Also, the IC of some embodiments includes a configuration controller for retrieving configuration data from outside of the IC, formulating configuration data sets, and routing the configuration data sets to the second set of configurable circuits over the configuration network.