OpenHW Group CV32E40P User Manual

Contents:

• Changelog
  • cv32e40p_v1.8.3
  • cv32e40p_v1.8.2
  • cv32e40p_v1.8.1
  • cv32e40p_v1.8.0 (v2 RTL Freeze tentative)
  • cv32e40p_v1.7.2
  • cv32e40p_v1.7.1
  • cv32e40p_v1.7.0
  • cv32e40p_v1.6.0
  • cv32e40p_v1.5.0
  • cv32e40p_v1.4.1
  • cv32e40p_v1.4.0
  • cv32e40p_v1.3.2
  • cv32e40p_v1.3.1
  • cv32e40p_v1.3.0
  • cv32e40p_v1.2.1
  • cv32e40p_v1.2.0
  • cv32e40p_v1.0.0_doc
  • cv32e40p_v1.1.0
  • cv32e40p_v1.0.0
  • pulpissimo-v1.0.0
  • pulpino-v1.0.0
• Introduction
  • License
  • Bus Interfaces
  • Standards Compliance
  • Contents
  • History
    • Memory-Protocol
    • RV32F Extensions
    • RV32A Extensions, Security and Memory Protection
    • CSR Address Re-Mapping
    • Interrupts
    • PULP HWLoop Spec
    • Compliancy, bug fixing, code clean-up, and documentation
  • References
  • Contributors
• Core Integration
  • Instantiation Template
  • Parameters
  • Interfaces
  • Clock Gating Cell
  • Synthesis guidelines
    • ASIC Synthesis
    • FPGA Synthesis
    • Synthesizing with the FPU
• Floating Point Unit (FPU)
  • CVFPU parameters
  • FP Register File
  • FP CSR
  • FPU Sleeping mode
  • Reminder for programmers
• Verification
  • v1.0.0 verification
  • v1.8.3 verification
    • RISC-V ISA Formal verification
    • Simulation verification
    • Results summary
  • Tracer
    • Output file
    • Trace output format
• CORE-V Hardware Loop feature
  • Hardware Loop constraints
  • Hardware loops impact on application, exception handlers and debug program
    • Application and ebreak/ecall exception handlers
    • Interrupt handlers
    • Illegal instruction exception handler
    • Debugger
    • HWloop CSRs save and restore
• CORE-V Instruction Set Custom Extensions
  • Pseudo-instructions
  • Post-Increment Load & Store Instructions and Register-Register Load & Store Instructions
    • Load operations
    • Store operations
    • Encoding
  • Event Load Instruction
    • Event Load operation
    • Encoding
  • Hardware Loops
    • Hardware Loops operations
    • Encoding
  • ALU
    • Bit Reverse Instruction
    • Bit Manipulation operations
    • Bit Manipulation Encoding
    • General ALU operations
    • General ALU Encoding
    • Immediate Branching operations
    • Immediate Branching Encoding
  • Multiply-Accumulate
    • 16-Bit x 16-Bit Multiplication operations
    • 16-Bit x 16-Bit Multiplication pseudo-instructions
    • 16-Bit x 16-Bit Multiply-Accumulate operations
    • 32-Bit x 32-Bit Multiply-Accumulate operations
    • Encoding
  • SIMD
    • SIMD ALU operations
    • SIMD Comparison operations
    • SIMD Comparison Encoding
    • SIMD Complex-number operations
    • SIMD Complex-number Encoding
• Performance Counters
  • Event Selector
  • Controlling the counters from software
  • Parametrization at synthesis time
  • Time Registers (time(h))
• Control and Status Registers
  • CSR Map
  • CSR Descriptions
    • Floating-point CSRs
    • Hardware Loops CSRs
    • Other CSRs
    • Trigger CSRs
    • Debug CSRs
    • Performances counters
    • ID CSRs
    • Non-RISC-V CSRs
• Exceptions and Interrupts
  • Interrupt Interface
  • Interrupts
  • Exceptions
  • Nested Interrupt/Exception Handling
• Debug & Trigger
  • Debug Interface
  • Core Debug Registers
  • Debug state
  • EBREAK Behavior
    • Scenario 1 : Enter Exception
    • Scenario 2 : Enter Debug Mode
    • Scenario 3 : Exit Program Buffer & Restart Debug Code
  • Interrupts during Single-Step Behavior
• Pipeline Details
  • Hazards
  • Single- and Multi-Cycle Instructions
• Instruction Fetch
  • Misaligned Accesses
  • Protocol
• Load-Store-Unit (LSU)
  • Misaligned Accesses
  • Protocol
  • Post-Incrementing Load and Store Instructions
• Register File
  • Floating-Point Register File
• Sleep Unit
  • Startup behavior
  • WFI
  • PULP Cluster Extension
• Core Versions and RTL Freeze Rules
  • What happens after RTL Freeze?
    • RTL changes on verified parameters
    • A bug is found
    • RTL changes on non-verified yet parameters
    • PPA optimizations and new features
  • Non-backward compatibility
    • Parameters
  • Released core versions
    • cv32e40p_v1.0.0
    • cv32e40p_v2.0.0
• Glossary