Nios II Classic Processor Reference Guide

ID 683620
Date 10/28/2016
Document Table of Contents

6.1. Nios II Versions Revision History

The number for any version of the Nios® II processor is determined by the version of the Nios II EDS. For example, in the Nios II EDS version 8.0, all Nios II cores are also version 8.0.

Table 81.   Nios® II Processor Revision History
Version Release Date Notes
13.1 November 2013
  • Added ECC support for internal RAM blocks (instruction cache, MMU TLB, and register file)
  • Added support for enhanced floating-point custom instructions
11.0 May 2011 No changes.
10.1 December 2010 No changes.
10.0 July 2010 No changes.
9.1 November 2009
  • Added optional external interrupt controller interface.
  • Added optional shadow register sets.
9.0 March 2009 No changes.
8.1 November 2008 No changes.
8.0 May 2008
  • Added an optional memory management unit (MMU).
  • Added an optional memory protection unit (MPU).
  • Added advanced exception checking.
  • Added the initda instruction.
7.2 October 2007 Added the jmpi instruction.
7.1 May 2007 No changes.
7.0 March 2007 No changes.
6.1 November 2006 No changes.
6.0 May 2006 The name Nios II Development Kit describing the software development tools changed to Nios II Embedded Design Suite.
5.1 SP1 January 2006 Bug fix for Nios II/f core.
5.1 October 2005 No changes.
5.0 May 2005
  • Changed version nomenclature. Intel FPGA now aligns the Nios® II processor version with Intel FPGA's Quartus® II software version.
  • Memory structure enhancements:

    (1) Added tightly-coupled memory.

    (2) Made data cache line size configurable.

    (3) Made cache optional in Nios II/f and Nios II/s cores.

  • Support for HardCopy® devices.
1.1 December 2004
  • Minor enhancements to the architecture: Added cpuid control register, and updated the break instruction.
  • Increased user control of multiply and shift hardware in the arithmetic logic unit (ALU) for Nios II/s and Nios II/f cores.
  • Minor bug fixes.
1.01 September 2004
  • Minor bug fixes.
1.0 May2004 Initial release of the Nios® II processor.