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    Siwa: a RISC-V RV32I based micro-controller for implantable medical applications

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    Siwa_a_RISC-V_RV32I_based_Micro-Controller_for_Implantable_Medical_Applications.pdf (302.1Kb)
    Fecha
    2020
    Autor
    García Ramírez, Ronny
    Chacón Rodríguez, Alfonso
    Castro González, Reinaldo
    Arnaud Maceira, Alfredo
    Miguez de Mori, Matías Rafael
    Gak Szollosy, Joel
    Molina Robles, Roberto
    Madrigal Boza, Gabriel
    Oviedo Hernández, Marco
    Solera Bolanos, Edgar
    Salazar Sibaja, Diego
    Sánchez Jiménez, Dayhana
    Fonseca Rodríguez, Melissa
    Arrieta Solorzano, Johan
    Rimolo Donadio, Renato
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    Resumen
    The design of Siwa1, a compact low power custom system on chip (SoC), targeted for implantable/wearable applications, is reported in this paper. Siwa is based on a RISC-V RV32I architecture. It has a centrally controlled non-pipelined structure, and it includes a control interface for an integrated sensing and stimulation device for biological tissues as well as standard communication interfaces. Siwa was developed from scratch using System Verilog, and implemented in a 180nm CMOS technology; Siwa includes a latch based register file c apable to read and write in one clock cycle with an area 30% smaller and a power consumption 25% lower with respect to an equivalent flip flop implementation; also, it has an estimated average power consumption of 70μW (48pJ/cycle) which is comparable to other micro-controllers commonly used in IMD applications.
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    https://hdl.handle.net/10895/1557
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