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Overview

The icyflex-V 32-bit processor core is based on the RV32IMC open-instruction set architecture (ISA) defined by the RISC-V foundation and, as such, is supported by standard state-of-the-art development tools (both open-source and proprietary). The 4-stage pipeline is optimized for power and area efficiency. Additional customizations are available on demand (e.g. RV32E area efficient implementation).

The icyflex-V core targets traditional micro-controller applications and is well suited for IoT, wearables and mixed signal applications.

The core IP comes along with various bus interconnect IP's and standard peripherals. For example, implementations relying on an embedded flash will benefit from an energy oriented cache architecture.

Benefits

  • Implementation in TSMC 55 nm LP HVT
  • Core only area : 0.056 mm2
  • Max. frequency (SS corner, 1.08 V, -40 °C) : 120 MHz
  • Power consumption 18 uW/MHz (TT corner, 1.2 V, 25 °C)

Applications

  • IOT
  • Wearables
  • Mixed-signal applications

Block Diagram

Features

  • RISC-V RV32 instruction set:
    • I > full support
    • M > partial support: no hardware divider
    • C > full support
  • Machine mode only
  • 32 vectorized interrupts
  • Standard debug as defined per RISC-V
  • 3.06 CoreMark/MHz
  • 1.35 DMIPS/MHz
  • Gate count: 26 kgates

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