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authorEddie Hung <eddie@fpgeh.com>2019-08-19 12:39:22 -0700
committerEddie Hung <eddie@fpgeh.com>2019-08-19 12:39:22 -0700
commit2f863660870e9ef66c5fcccbf711cf9eb46849c0 (patch)
treefa0cfbd0306eb79fe4b626b61a15f057a4edcc52
parent91687d3feae8df0e315232d3989a445e7d452d1f (diff)
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Add reference to source of Tclktoq timing
-rw-r--r--techlibs/xilinx/abc_ff.v2
1 files changed, 2 insertions, 0 deletions
diff --git a/techlibs/xilinx/abc_ff.v b/techlibs/xilinx/abc_ff.v
index 66d9573d3..36e1a08e4 100644
--- a/techlibs/xilinx/abc_ff.v
+++ b/techlibs/xilinx/abc_ff.v
@@ -20,6 +20,8 @@
// ============================================================================
+// Max delays from https://github.com/SymbiFlow/prjxray-db/blob/23c8b0851f979f0799318eaca90174413a46b257/artix7/timings/slicel.sdf#L237-L251
+
module FDRE (output reg Q, input C, CE, D, R);
parameter [0:0] INIT = 1'b0;
parameter [0:0] IS_C_INVERTED = 1'b0;