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lowRISC/ibex ★ 2042 803 APPLICATION

Ibex is a production-quality open-source 32-bit RISC-V CPU core designed for embedded control applications. It provides a highly configurable, synthesizable core written in SystemVerilog with support for RISC-V ISA extensions (I, E, M, C, B) and security features like PMP, lockstep, and data-independent timing. The core features a modular architecture with separate functional units, a sophisticated configuration system via YAML/Python, and extensive verification infrastructure including UVM testbenches, formal proofs, and co-simulation with Spike ISS. It is actively maintained and used in real silicon designs including OpenTitan.

RATING: 9.3/10 MAINT: active DRIFT: low
▸ 3 reusable components found
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