Circuit and Physical Design Implementation of the Microprocessor Chip for the zEnterprise System
2012
This paper describes the circuit and physical design features of the z196 processor chip, implemented in a 45 nm SOI technology. The chip contains 4 super-scalar, out-of-order processor cores, running at 5.2 GHz, on a die with an area of 512 mm 2 containing an estimated 1.4 billion transistors. The core and chip design methodology and specific design features are presented, focusing on techniques used to enable high-frequency operation. In addition, chip power, IR drop, and supply noise are discussed, being key design focus areas. The chip's ground-breaking RAS features are also described, engineered for maximum reliability and system stability.
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