diff options
Diffstat (limited to 'techlibs/ecp5/brams.txt')
| -rw-r--r-- | techlibs/ecp5/brams.txt | 166 |
1 files changed, 52 insertions, 114 deletions
diff --git a/techlibs/ecp5/brams.txt b/techlibs/ecp5/brams.txt index 615d8b2e5..db28a40d7 100644 --- a/techlibs/ecp5/brams.txt +++ b/techlibs/ecp5/brams.txt @@ -1,114 +1,52 @@ -bram $__ECP5_PDPW16KD - init 1 - - abits 9 - dbits 36 - - groups 2 - ports 1 1 - wrmode 1 0 - enable 4 1 - transp 0 0 - clocks 2 3 - clkpol 2 3 -endbram - -bram $__ECP5_DP16KD - init 1 - - abits 10 @a10d18 - dbits 18 @a10d18 - abits 11 @a11d9 - dbits 9 @a11d9 - abits 12 @a12d4 - dbits 4 @a12d4 - abits 13 @a13d2 - dbits 2 @a13d2 - abits 14 @a14d1 - dbits 1 @a14d1 - - groups 2 - ports 1 1 - wrmode 1 0 - enable 2 1 @a10d18 - enable 1 1 @a11d9 @a12d4 @a13d2 @a14d1 - transp 0 2 - clocks 2 3 - clkpol 2 3 -endbram - -# The syn_* attributes are described in: -# https://www.latticesemi.com/view_document?document_id=51556 -attr_icase 1 - -match $__ECP5_PDPW16KD - # 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 bits 2048 - min efficiency 5 - shuffle_enable A - make_transp - or_next_if_better -endmatch - -match $__ECP5_PDPW16KD - # explicitly requested RAM - attribute syn_ramstyle=block_ram ram_block - attribute !syn_romstyle - attribute !rom_block - attribute !logic_block - min wports 1 - shuffle_enable A - make_transp - or_next_if_better -endmatch - -match $__ECP5_PDPW16KD - # explicitly requested ROM - attribute syn_romstyle=ebr rom_block - attribute !syn_ramstyle - attribute !ram_block - attribute !logic_block - max wports 0 - shuffle_enable A - make_transp - or_next_if_better -endmatch - -match $__ECP5_DP16KD - # 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 bits 2048 - min efficiency 5 - shuffle_enable A - or_next_if_better -endmatch - -match $__ECP5_DP16KD - # explicitly requested RAM - attribute syn_ramstyle=block_ram ram_block - attribute !syn_romstyle - attribute !rom_block - attribute !logic_block - min wports 1 - shuffle_enable A - or_next_if_better -endmatch - -match $__ECP5_DP16KD - # explicitly requested ROM - attribute syn_romstyle=ebr rom_block - attribute !syn_ramstyle - attribute !ram_block - attribute !logic_block - max wports 0 - shuffle_enable A -endmatch +ram block $__ECP5_DP16KD_ { + abits 14; + widths 1 2 4 9 18 per_port; + byte 9; + cost 128; + init no_undef; + port srsw "A" "B" { + clock anyedge; + clken; + wrbe_separate; + portoption "WRITEMODE" "NORMAL" { + rdwr no_change; + } + portoption "WRITEMODE" "WRITETHROUGH" { + rdwr new; + } + portoption "WRITEMODE" "READBEFOREWRITE" { + rdwr old; + } + option "RESETMODE" "SYNC" { + rdsrst zero ungated block_wr; + } + option "RESETMODE" "ASYNC" { + rdarst zero; + } + rdinit zero; + } +} + +ram block $__ECP5_PDPW16KD_ { + abits 14; + widths 1 2 4 9 18 36 per_port; + byte 9; + cost 128; + init no_undef; + port sr "R" { + clock anyedge; + clken; + option "RESETMODE" "SYNC" { + rdsrst zero ungated; + } + option "RESETMODE" "ASYNC" { + rdarst zero; + } + rdinit zero; + } + port sw "W" { + width 36; + clock anyedge; + clken; + } +} |