Anne Merlande
Anne Merlande is a processor architect at STMicroelectronics in Grenoble, within the Computing and Compilers Center. As Senior Member of Technical Staff, her expertise field covers processor and system architecture, CPU microarchitecture and frontend design, low power and energy efficient subsystems, security and functional safety.
She graduated from Institut Supérieur d’Électronique de Paris in 1995 and joined STMicroelectronics in 1999, after four years as an ASIP designer at Matra. At STMicroelectronics, she has led the design of the ST200 processor families, acted as technical lead for ARM Cortex A subsystem frontend design, and led top level integration for automotive SoCs.
She currently works as Processor Architect on the STxP5 core family, with a particular focus on ultra low power operation, security, and functional safety.
Session
Energy saving is a top priority for STMicroelectronics products. For the STxP5 embedded CPU based on the RISC-V architecture, there is a particular focus on minimizing static power when the core is inactive. Additionally, it is important to optimize the CPU restart time, silicon area, implementation complexity, and software overhead. The Ultra Low Power Retention with Warm Restart Mode addresses these challenges by maximizing power savings and reducing drawbacks typically associated with resuming operation. This solution leverages the modular, scalable, customizable, and extensible nature of the RISC-V architecture by defining and implementing a custom RISC-V extension and tailored microarchitecture.