techlibs/nexus/brams.txt

   1 bram $__NX_PDP16K
   2   init 1
   3
   4   abits 9 @a9d36
   5   dbits 36 @a9d36
   6   abits 10 @a10d18
   7   dbits 18 @a10d18
   8   abits 11 @a11d9
   9   dbits 9  @a11d9
  10   abits 12 @a12d4
  11   dbits 4  @a12d4
  12   abits 13 @a13d2
  13   dbits 2  @a13d2
  14   abits 14 @a14d1
  15   dbits 1  @a14d1
  16
  17   groups 2
  18   ports 1 1
  19   wrmode 1 0
  20   enable 4 1 @a9d36
  21   enable 2 1 @a10d18
  22   enable 1 1 @a11d9 @a12d4 @a13d2 @a14d1
  23   transp 0 0
  24   clocks 2 3
  25   clkpol 2 3
  26 endbram
  27
  28 match $__NX_PDP16K
  29   # implicitly requested RAM or ROM
  30   attribute !syn_ramstyle syn_ramstyle=auto
  31   attribute !syn_romstyle syn_romstyle=auto
  32   attribute !ram_block
  33   attribute !rom_block
  34   attribute !logic_block
  35   min bits 2048
  36   min efficiency 5
  37   shuffle_enable A
  38   make_transp
  39   or_next_if_better
  40 endmatch
  41
  42 match $__NX_PDP16K
  43   # explicitly requested RAM
  44   attribute syn_ramstyle=block_ram ram_block
  45   attribute !syn_romstyle
  46   attribute !rom_block
  47   attribute !logic_block
  48   min wports 1
  49   shuffle_enable A
  50   make_transp
  51   or_next_if_better
  52 endmatch
  53
  54 match $__NX_PDP16K
  55   # explicitly requested ROM
  56   attribute syn_romstyle=ebr rom_block
  57   attribute !syn_ramstyle
  58   attribute !ram_block
  59   attribute !logic_block
  60   max wports 0
  61   make_transp
  62   shuffle_enable A
  63 endmatch