Abstract:
Cross-bar segment routing and access table address remapping functions are combined within a cross-bar of a system-on-a-chip. In this manner, address remapping may occur prior to segment routing. One or more access table caching registers may be included for each master port. The caching registers may allow for a rapid lookup of one or more access table entries associated with each master, as well as allow for the simultaneous lookup by multiple masters without adding ports to the access table. A segment identifier may be stored in the caching registers to indicate how to route a matching request to the appropriate slave segment.
Abstract:
A computer system comprises a data processor, a main memory, a cache memory and an inpage buffer. The cache memory is coupled to the main memory to receive data therefrom and is coupled to the processor to transfer data thereto. The inpage buffer is coupled to the main memory to receive data therefrom, coupled to the cache memory to transfer data thereto, and coupled to the processor to transfer data thereto. Part of a line of data is originally transferred to the cache memory bypassing the inpage buffer to give the processor immediate access to the data which it needs. The remainder of the line of data is subsequently transferred to the inpage buffer, and then the processor is given access to the contents of the inpage buffer. The processor accesses the data in the cache memory with one set of clocks while the remainder of the line of data is transferred to the inpage buffer with another set of clocks. The two sets of clocks optimize the operation of tile processor and the main memory. Subsequently, the contents of the inpage buffer are transferred to the cache memory at the start of another inpage operation while the next line of data is fetched from the main memory.
Abstract:
A portable thermocouple template is built to have one or more separate thermocouple beads fixedly attached at predetermined locations on a thin insulator sheet, with appropriate tape or the like for holding each thermocouple and its pair of connector wires in position on the sheet. The template is mountable between interconnected electronic components, such as on the pin side of a multichip module, in order to monitor the temperature of the adjacent components under actual operating conditions. After the test is completed and the temperature data is recorded and/or displayed on a data logger, the template and related assembly wires are removed and stored until such time as the template is needed for mounting again in order for additional thermal tests to be conducted.
Abstract:
Cross-bar segment routing and access table address remapping functions are combined within a cross-bar of a system-on-a-chip. In this manner, address remapping may occur prior to segment routing. One or more access table caching registers may be included for each master port. The caching registers may allow for a rapid lookup of one or more access table entries associated with each master, as well as allow for the simultaneous lookup by multiple masters without adding ports to the access table. A segment identifier may be stored in the caching registers to indicate how to route a matching request to the appropriate slave segment.
Abstract:
To prevent data performance impacts when dealing with target devices that can only transfer data for a limited number of bytes before disconnecting, the invention implements a short term data cache on the bridge. Using this feature, the bridge will cache additional data beyond a predetermined quantity of data following a disconnect with the requesting device. As such, the bridge may continue to prefetch additional data up to an amount specified by a prefetch read byte count and return the additional data should the requesting device request additional data resuming at the point of disconnect. However, the bridge will discard the additional data when at least one of the following occurs: a) the requesting device disconnects data transfer, and b) a further READ request that resumes at the point of disconnect is not received within a predetermined time.