RISC-V MC CPU IP Core

RISC-V for Micro-Controller Applications

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The Lattice Semiconductor RISC-V MC CPU soft IP contains a 32-bit RISC-V processor core and optional submodules – Timer and Programmable Interrupt Controller (PIC).

Resource Utilization details are available in the IP Core User Guide.

Features

  • RV32IMC instruction set
  • Five stages of pipelines
  • Support the AHB-L bus standard for instruction/data port
  • Optional caches, including a 4 KB two-way instruction cache and a 4 KB two-way data cache (for Lattice Avant, MachXO5-NX, Certus-NX, CertusPro-NX, and CrossLink-NX only)
  • Optional debug using Gnu Debugger (GDB) and Open On-Chip Debugger (OpenOCD)

Block Diagram

RISC-V MC CPU IP Core Block DiagramExpand Image

Resource Utilization

Lattice Avant Device (with Cache Disabled)
Configuration LUTs Registers EBRs DSPs
Processor core only 2015 867 2 0
Processor core + PIC 2097 886 2 0
Processor core + Timer 2456 979 2 0
Processor core + Debug 2376 1268 2 0
Processor core + C_EXT 2202 860 2 0
Processor core + C_EXT + M_EXT 2731 1284 2 6
Processor core + PIC + Timer 2535 1017 2 0
Processor core + PIC + Timer + Debug 2869 1444 2 0
Processor core + PIC + Timer + Debug + C_EXT 3128 1528 2 0

Note: Resource utilization characteristics are generated using Lattice Radiant software.

Lattice Avant Device (with Cache Enabled)
Configuration LUTs Registers EBRs DSPs
Processor core only 3340 1364 18 0
Processor core + PIC 3437 1406 18 0
Processor core + Timer 3857 1548 18 0
Processor core + Debug 3708 1806 18 0
Processor core + C_EXT 3671 1546 18 0
Processor core + C_EXT + M_EXT 4431 1861 18 6
Processor core + PIC + Timer 3809 1655 18 0
Processor core + PIC + Timer + Debug 4381 1995 18 0
Processor core + PIC + Timer + Debug + C_EXT 4559 2168 18 0

Note: Resource utilization characteristics are generated using Lattice Radiant software.

CertusPro-NX Device (with Cache Disabled)
Configuration LUTs Registers EBRs DSPs
Processor core only 1978 834 2 0
Processor core + PIC 2105 886 2 0
Processor core + Timer 2446 990 2 0
Processor core + Debug 2304 1218 2 0
Processor core + C_EXT 2288 896 2 0
Processor core + C_EXT + M_EXT 2790 1185 2 6
Processor core + PIC + Timer 2578 1032 2 0
Processor core + PIC + Timer + Debug 2871 1390 2 0
Processor core + PIC + Timer + Debug + C_EXT 3220 1461 2 0

Note: Resource utilization characteristics are generated using Lattice Radiant software.

CertusPro-NX Device (with Cache Enabled)
Configuration LUTs Registers EBRs DSPs
Processor core only 3031 1461 20 0
Processor core + PIC 3391 1505 20 0
Processor core + Timer 3812 1607 20 0
Processor core + Debug 3667 1854 20 0
Processor core + C_EXT 3691 1613 19 0
Processor core + C_EXT + M_EXT 4334 2007 19 6
Processor core + PIC + Timer 3926 1671 20 0
Processor core + PIC + Timer + Debug 4139 2012 20 0
Processor core + PIC + Timer + Debug + C_EXT 4450 2169 19 0

Note: Resource utilization characteristics are generated using Lattice Radiant software.

To view the complete Resource Utilization of the RISC-V MC IP Core, click here to view the table.

Ordering Information

The RISC-V MC CPU IP Core is provided at no additional cost with Lattice Propel Builder.

Documentation

Quick Reference
TITLE NUMBER VERSION DATE FORMAT SIZE
Select All
RISC-V MC CPU IP - Lattice Propel Builder 2024.2 User Guide
FPGA-IPUG-02267 1.0 12/20/2024 PDF 626 KB
Small-sized RISC-V CPU IP Core- Lattice Propel Builder
FPGA-IPUG-02114 1.0 6/3/2020 PDF 1.4 MB

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