bram $__ICE40_RAM4K_M0 init 1 abits 8 dbits 16 groups 2 ports 1 1 wrmode 0 1 enable 1 16 transp 0 0 clocks 2 3 clkpol 2 3 endbram bram $__ICE40_RAM4K_M123 init 1 abits 9 @M1 dbits 8 @M1 abits 10 @M2 dbits 4 @M2 abits 11 @M3 dbits 2 @M3 groups 2 ports 1 1 wrmode 0 1 enable 1 1 transp 0 0 clocks 2 3 clkpol 2 3 endbram # The syn_* attributes are described in: # https://www.latticesemi.com/-/media/LatticeSemi/Documents/Tutorials/AK/LatticeDiamondTutorial311.ashx attr_icase 1 match $__ICE40_RAM4K_M0 # implicitly requested RAM or ROM attribute !syn_ramstyle syn_ramstyle=auto attribute !syn_romstyle syn_romstyle=auto attribute !ram_block attribute !rom_block attribute !logic_block min efficiency 2 make_transp or_next_if_better endmatch match $__ICE40_RAM4K_M0 # explicitly requested RAM attribute syn_ramstyle=block_ram ram_block attribute !syn_romstyle attribute !rom_block attribute !logic_block min wports 1 make_transp or_next_if_better endmatch match $__ICE40_RAM4K_M0 # explicitly requested ROM attribute syn_romstyle=ebr rom_block attribute !syn_ramstyle attribute !ram_block attribute !logic_block max wports 0 make_transp or_next_if_better endmatch match $__ICE40_RAM4K_M123 # implicitly requested RAM or ROM attribute !syn_ramstyle syn_ramstyle=auto attribute !syn_romstyle syn_romstyle=auto attribute !ram_block attribute !rom_block attribute !logic_block min efficiency 2 make_transp or_next_if_better endmatch match $__ICE40_RAM4K_M123 # explicitly requested RAM attribute syn_ramstyle=block_ram ram_block attribute !syn_romstyle attribute !rom_block attribute !logic_block min wports 1 make_transp or_next_if_better endmatch match $__ICE40_RAM4K_M123 # explicitly requested ROM attribute syn_romstyle=ebr rom_block attribute !syn_ramstyle attribute !ram_block attribute !logic_block max wports 0 make_transp endmatch