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-rw-r--r--techlibs/xilinx/xc7_brams_bb.v4
1 files changed, 4 insertions, 0 deletions
diff --git a/techlibs/xilinx/xc7_brams_bb.v b/techlibs/xilinx/xc7_brams_bb.v
index 56939089c..5b40a457d 100644
--- a/techlibs/xilinx/xc7_brams_bb.v
+++ b/techlibs/xilinx/xc7_brams_bb.v
@@ -1,7 +1,9 @@
// Max delays from https://github.com/SymbiFlow/prjxray-db/blob/f8e0364116b2983ac72a3dc8c509ea1cc79e2e3d/artix7/timings/BRAM_L.sdf#L138-L147
module RAMB18E1 (
+ (* clkbuf_sink *)
input CLKARDCLK,
+ (* clkbuf_sink *)
input CLKBWRCLK,
input ENARDEN,
input ENBWREN,
@@ -129,7 +131,9 @@ module RAMB18E1 (
endmodule
module RAMB36E1 (
+ (* clkbuf_sink *)
input CLKARDCLK,
+ (* clkbuf_sink *)
input CLKBWRCLK,
input ENARDEN,
input ENBWREN,