ⓘ LatticeMico8. The LatticeMico8 is an 8-bit microcontroller soft processor core optimized for field-programmable gate arrays and crossover programmable logic dev ..

                                     

ⓘ LatticeMico8

The LatticeMico8 is an 8-bit microcontroller soft processor core optimized for field-programmable gate arrays and crossover programmable logic device architecture from Lattice Semiconductor. Combining a full 18-bit wide instruction set with 32 general purpose registers, the LatticeMico8 is a flexible Verilog reference design suitable for a wide variety of markets, including communications, consumer, computer, medical, industrial, and automotive. The core consumes minimal device resources, less than 200 look up tables in the smallest configuration, while maintaining a broad feature set.

The LatticeMico8 is licensed under a new free IP core license, the first such license offered by any FPGA supplier. The main benefits of using the IP core are greater flexibility, improved portability, and no cost. This new agreement provides some of the benefits of standard open source and allows users to mix proprietary designs with the core. Additionally, it allows for the distribution of designs in bitstream or FPGA format without accompanying it with a copy of the license. Developers are required to keep the cores source code confidential and use "for the sole purposes of design documentation and preparation of Derivative Works. to develop designs to program Lattice programmable logic devices".

                                     

1. Features

  • Input/output is performed using "Ports" up to 256 port numbers
  • 32 bytes of internal scratch pad memory
  • Two cycles per instruction
  • 32 general purpose registers
  • Lattice UART reference design peripheral
  • 18-bit wide instructions
  • Optional 256 bytes of external scratch pad RAM
  • 8-bit data path
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