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-rw-r--r--techlibs/xilinx/abc_xc7.box40
1 files changed, 40 insertions, 0 deletions
diff --git a/techlibs/xilinx/abc_xc7.box b/techlibs/xilinx/abc_xc7.box
index 3789ff350..044ed1bff 100644
--- a/techlibs/xilinx/abc_xc7.box
+++ b/techlibs/xilinx/abc_xc7.box
@@ -14,6 +14,7 @@ F7MUX 1 1 3 1
MUXF8 2 1 3 1
104 94 273
+# Box containing MUXF7.[AB] + MUXF8
# Inputs: I0 I1 I2 I3 S0 S1
# Outputs: O
$__MUXF78 3 1 6 1
@@ -56,3 +57,42 @@ RAM64X1D 6 0 15 2
RAM128X1D 7 0 17 2
- - - - - - - - 1009 998 839 774 605 494 450 - -
1047 1036 877 812 643 532 478 - - - - - - - - - -
+
+# Box to emulate async behaviour of FD[CP]*
+# Inputs: A S
+# Outputs: Y
+$__ABC_ASYNC 1000 0 2 1
+0 764
+
+# The following FD*.{CE,R,CLR,PRE) are offset by 46ps to
+# reflect the -46ps Tsu
+
+# Inputs: C CE D R \$pastQ
+# Outputs: Q
+FDRE 1001 1 5 1
+0 155 0 404 0
+
+# Inputs: C CE D R \$pastQ
+# Outputs: Q
+FDRE_1 1002 1 5 1
+0 155 0 404 0
+
+# Inputs: C CE CLR D \$pastQ
+# Outputs: Q
+FDCE 1003 1 5 1
+0 155 810 0 0
+
+# Inputs: C CE CLR D \$pastQ
+# Outputs: Q
+FDCE_1 1004 1 5 1
+0 155 810 0 0
+
+# Inputs: C CE D PRE \$pastQ
+# Outputs: Q
+FDPE 1005 1 5 1
+0 155 0 810 0
+
+# Inputs: C CE D PRE \$pastQ
+# Outputs: Q
+FDPE_1 1006 1 5 1
+0 155 0 810 0