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Ibex RISC-V Core Wrapper Technical Specification

rv_core_ibex:

Overview

This document specifies Ibex CPU core wrapper functionality.

Features

  • Instantiation of a Ibex RV32 CPU Core.
  • TileLink Uncached Light (TL-UL) host interfaces for the instruction and data ports.
  • Simple address translation.
  • NMI support for security alert events for watchdog bark.
  • General error status collection and alert generation.
  • Crash dump collection for software debug.

Description

The Ibex RISC-V Core Wrapper instantiates an Ibex RV32 CPU Core, and wraps its data and instruction memory interfaces to TileLink Uncached Light (TL-UL). All configuration parameters of Ibex are passed through. The pipelining of the bus adapters is configurable.

Compatibility

Ibex is a compliant RV32 RISC-V CPU core, as documented in the Ibex documentation.

The TL-UL bus interfaces exposed by this wrapper block are compliant to the TileLink Uncached Lite Specification version 1.7.1.