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  • Rev 73, 2013-04-28 17:14:34 GMT
  • Author: csantifort
  • Log message:
    The patch introduces a new configuration option `A23_RAM_REGISTER_BANK,
    which controls instantiation of Amber 23 register bank.
    If the option is set, a ram-based variant of the register bank is instantiated.
    It can be useful in low-end FPGA designs, where flipflops and muxes are costly.

    Altera Cyclone III resource utilization:
    - flipflop-based register bank: 1583 combinationals + 856 registers
    - ram-based register bank: 268 combinationals + 156 registers

    Contributed by Dmitry Tarnyagin <>

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