Abstract: Circuitry for a computing system includes a memory arrangement having at least one memory management unit and at least one processor. The at least one processor is arranged to issue a memory query to the memory management unit. The memory management unit is arranged to provide a query result in response to the memory query directly to the processor via a data connection.

Abstract: A system and method for modifying an information unit, the method includes the following stages: (i) receiving, over a first bus, a request to initiate a snooping type atomic operation associated with at least one information unit located at a first address of a memory module; (ii) providing the information unit over the first bus; (iii) attempting to complete the snooping type atomic operation of an updated information unit; and (iv) defining the atomic operation as a failed atomic operation if during at least one stage of receiving, providing and attempting, the first address was locked as a result of a locking type atomic operation.

Abstract: A device and a method for fetching an information unit, the method includes: receiving a request to execute a write through cacheable operation of the information unit; emptying a fetch unit from data, wherein the fetch unit is connected to a cache module and to a high level memory unit; determining, when the fetch unit is empty, whether the cache module stores an older version of the information unit; and selectively writing the information unit to the cache module in response to the cache module in response to the determination.

Abstract: A write back allocate system that includes: (i) a store request circuit; (ii) a processor, adapted to generate a store request that comprises an information unit and an information unit address; and (iii) a cache module, connected to the store request circuit and to a high level memory unit. A single cache module line includes multiple segments, each segment is adapted to store a single information unit. A content of a cache module line is retrieved from the high level memory unit by generating a fetch burst that includes multiple segment fetch operations. The store request circuit includes a snooper and a controller. The snooper detects a portion of an address of a cache segment of a cache line that is being fetched during a fetch burst. The controller is adapted to request from the cache module to receive the information unit before a completion of the fetch burst if the portion of the address of the cache segment matches a corresponding portion of the information unit address.

Abstract: A device and a method for managing access requests, the method includes: (i) receiving, from a master component coupled to a master bus, multiple access requests to access a slave component over a pipelined slave bus; acknowledging a received access request if: (a) at least an inter-access request delay period lapsed from a last acknowledgement of an access request; (b) an amount of pending acknowledged access requests is below a threshold; wherein the threshold is determined in response to a pipeline depth of the pipelined slave bus; (c) the received access request is valid; wherein a validity of an access request is responsive to a reception of an access request cancellation request; and (ii) providing information from the slave component, in response to at least one acknowledged access request.

Abstract: Apparatus and method for bus matching. The method includes: receiving data transfer characteristics at a first endian mode and at a second endian mode; determining a connectivity of multiple devices to an interfacing bus in response to the data transfer characteristics and in response to a relationship between a width of the interfacing bus and a width of each device interface; wherein at least one device interface is connected in parallel to multiple interfacing bus portions; and configuring a control logic such as to provide control signals representative of a transfer of data over the interfacing bus; whereas the control logic is configured in response to the connectivity.

Abstract: A device and a method for fetching an information unit, the method includes: receiving a request to execute a write through cacheable operation of the information unit; emptying a fetch unit from data, wherein the fetch unit is connected to a cache module and to a high level memory unit; determining, when the fetch unit is empty, whether the cache module stores an older version of the information unit; and selectively writing the information unit to the cache module in response to the cache module in response to the determination.

Abstract: A device and a method for managing access requests, the method includes: (i) receiving, from a master component coupled to a master bus, multiple access requests to access a slave component over a pipelined slave bus; acknowledging a received access request if: (a) at least an inter-access request delay period lapsed from a last acknowledgement of an access request; (b) an amount of pending acknowledged access requests is below a threshold; wherein the threshold is determined in response to a pipeline depth of the pipelined slave bus; (c) the received access request is valid; wherein a validity of an access request is responsive to a reception of an access request cancellation request; and (ii) providing information from the slave component, in response to at least one acknowledged access request.

Abstract: A write back allocate system that includes: (i) a store request circuit; (ii) a processor, adapted to generate a store request that comprises an information unit and an information unit address; and (iii) a cache module, connected to the store request circuit and to a high level memory unit. A single cache module line includes multiple segments, each segment is adapted to store a single information unit. A content of a cache module line is retrieved from the high level memory unit by generating a fetch burst that includes multiple segment fetch operations. The store request circuit includes a snooper and a controller. The snooper detects a portion of an address of a cache segment of a cache line that is being fetched during a fetch burst. The controller is adapted to request from the cache module to receive the information unit before a completion of the fetch burst if the portion of the address of the cache segment matches a corresponding portion of the information unit address.

Abstract: A device that includes: a first bus, connected between a first logic and a first circuit; a group of second buses connected between the first logic and between multiple non-high impedance circuit access logics associated with multiple circuits; wherein each circuit access logic is adapted to: (i) provide to the first logic, a circuit write value during a circuit writing period and during an idle period that follows the circuit writing period and ends when another circuit is allowed to write; and (ii) provide a default value when another circuit is allowed to write; and wherein the first logic is adapted to alter a state of the first bus in response to a change between two consecutive circuit write values.

Abstract: Apparatus and method for providing information to a cache module, the apparatus includes: (i) at least one processor, connected to the cache module, for initiating a first and second requests to retrieve, from the cache module, a first and a second data unit; (ii) logic, adapted to receive the requests and determine if the first and second data units are mandatory data units; and (iii) a controller, connected to the cache module, adapted to initiate a single fetch burst if a memory space retrievable during the single fetch burst comprises the first and second mandatory data units, and adapted to initiate multiple fetch bursts if a memory space retrievable during a single fetch burst does not comprise the first and the second mandatory data units.

Abstract: A device that includes: a first bus, connected between a first logic and a first circuit; a group of second buses connected between the first logic and between multiple non-high impedance circuit access logics associated with multiple circuits; wherein each circuit access logic is adapted to: (i) provide to the first logic, a circuit write value during a circuit writing period and during an idle period that follows the circuit writing period and ends when another circuit is allowed to write; and (ii) provide a default value when another circuit is allowed to write; and wherein the first logic is adapted to alter a state of the first bus in response to a change between two consecutive circuit write values.

Abstract: Apparatus and method for providing information to a cache module, the apparatus includes: (i) at least one processor, connected to the cache module, for initiating a first and second requests to retrieve, from the cache module, a first and a second data unit; (ii) logic, adapted to receive the requests and determine if the first and second data units are mandatory data units; and (iii) a controller, connected to the cache module, adapted to initiate a single fetch burst if a memory space retrievable during the single fetch burst comprises the first and second mandatory data units, and adapted to initiate multiple fetch bursts if a memory space retrievable during a single fetch burst does not comprise the first and the second mandatory data units.

Abstract: A system and method for modifying an information unit, the method includes the following stages: (i) receiving, over a first bus, a request to initiate a snooping type atomic operation associated with at least one information unit located at a first address of a memory module; (ii) providing the information unit over the first bus; (iii) attempting to complete the snooping type atomic operation of an updated information unit; and (iv) defining the atomic operation as a failed atomic operation if during at least one stage of receiving, providing and attempting, the first address was locked as a result of a locking type atomic operation.