EnCore Castle Processor Fully Functional

The second silicon implementation of an extended EnCore processor is a test-chip codenamed Castle, fabricated in a generic 90nm CMOS process. All of the EnCore test chips are named after hills in Edinburgh; Castle is named after the rock on which Edinburgh Castle is built.

The Castle chip contains an extended version of the EnCore processor, together with a 32KB 4-way set-associative Instruction Cache, and a 32KB 4-way set-associative Data Cache. It is embedded within a system-on-chip (SoC) design that provides a generic 32-bit memory interface, as well as interrupt, clocks and reset signals.