aboutsummaryrefslogtreecommitdiffstats
path: root/techlibs/nexus/brams.txt
diff options
context:
space:
mode:
Diffstat (limited to 'techlibs/nexus/brams.txt')
-rw-r--r--techlibs/nexus/brams.txt60
1 files changed, 60 insertions, 0 deletions
diff --git a/techlibs/nexus/brams.txt b/techlibs/nexus/brams.txt
new file mode 100644
index 000000000..f7f49b9f0
--- /dev/null
+++ b/techlibs/nexus/brams.txt
@@ -0,0 +1,60 @@
+bram $__NX_PDP16K
+ init 1
+
+ abits 9 @a9d36
+ dbits 36 @a9d36
+ 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 4 1 @a9d36
+ enable 2 1 @a10d18
+ enable 1 1 @a11d9 @a12d4 @a13d2 @a14d1
+ transp 0 0
+ clocks 2 3
+ clkpol 2 3
+endbram
+
+match $__NX_PDP16K
+ # 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 $__NX_PDP16K
+ # 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 $__NX_PDP16K
+ # 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