Tsuyoshi Motokurumada

A 1.3GHz fifth generation SPARC64 microprocessor

A 5th generation SPARC64 processor is fabricated in 130nm SOI CMOS process with 8 layers of Cu metallization. It runs at 1.3GHz with 37.4W power dissipation in the laboratory. The chip contains over 190M transistors with 19M in logic circuits. The chip size is 18.14mm x 15.99mm. The error detection and recovery mechanism is implemented for execution units and data path logic circuits in addition to on-chip arrays to detect and recover from data logic error. This processor is developed by using mostly in-house CAD tools.A fifth generation SPARC64 processor implemented in 130 nm CMOS process with 8 layers of Cu metallization operates with a 1.3 GHz clock and dissipates 34.7 W. The processor is a 4-issue out-of-order design with 2 MB on-chip level-2 cache. Error checking is added on the data-path in addition to memory. An instruction is retried for correction when an error is detected in the datapath.

The 10th Generation 16-Core SPARC64™ Processor for Mission Critical UNIX Server

The 10th generation SPARC64™ processor named SPARC64 X contains 3-billion transistors on a 588mm2 die fabricated in an enhanced 28nm high-κ metal-gate (HKMG) CMOS process, with 13 layers of copper interconnect with low-κ dielectrics. More stress control, SiGe improvement and S/D optimization achieve about 10% higher performance than the standard 28nm high performance (28HP) process. SPARC64 X runs at 3.0GHz and consists of 16 cores, shared 24MB level 2 (L2) cache, four channels of 1.6GHz DDR3 controller, two ports of PCIe Gen3 controller, and five ports of system interface controller. ccNUMA is adopted as its memory system, and a cache coherence control unit for multi-chip systems with up to 64 processors is integrated into L2 cache control circuitry for lower latency and reduced area and power consumption.