diff --git a/database/virtex7/segbits_liob18.db b/database/virtex7/segbits_liob18.db
new file mode 100644
index 00000000..5c0dfa5c
--- /dev/null
+++ b/database/virtex7/segbits_liob18.db
@@ -0,0 +1,75 @@
+LIOB18.DIFF.ZIBUF_LOW_PWR 38_124 39_03
+LIOB18.IOB_Y0.DCITERMDISABLE.I 39_65
+LIOB18.IOB_Y0.IBUFDISABLE.I 38_88
+LIOB18.IOB_Y0.IBUF_HP_BANK_GLUE 29_109
+LIOB18.IOB_Y0.LVCMOS12.DRIVE.I2_I4_I6_I8 !38_104 !38_86 !39_73 !39_83 !39_97 38_72 39_93 39_95
+LIOB18.IOB_Y0.LVCMOS12.SLEW.FAST !38_82 !39_101 !39_81 !39_89 38_114 39_105 39_111 39_113 39_77
+LIOB18.IOB_Y0.LVCMOS12_LVCMOS15.IN !39_01 38_126 39_127
+LIOB18.IOB_Y0.LVCMOS12_LVCMOS15_LVCMOS18.IN !39_01 38_126 39_127
+LIOB18.IOB_Y0.LVCMOS12_LVCMOS15_LVCMOS18.SLEW.SLOW !38_114 !38_82 !39_101 !39_105 !39_111 !39_113 !39_77 !39_81 !39_89
+LIOB18.IOB_Y0.LVCMOS12_LVCMOS15_LVCMOS18_LVCMOS25_LVCMOS33_LVDS_25_LVTTL_SSTL135_SSTL15_TMDS_33.IN_ONLY !38_104 !38_72 !38_86 !39_73 !39_83 !39_93 !39_95 !39_97 38_78 38_80 38_94 39_103 39_79
+LIOB18.IOB_Y0.LVCMOS12_LVCMOS15_LVCMOS18_LVCMOS25_LVCMOS33_LVTTL_SSTL135_SSTL15.SLEW.SLOW !38_114 !38_82 !39_101 !39_105 !39_111 !39_113 !39_77 !39_81 !39_89
+LIOB18.IOB_Y0.LVCMOS12_LVCMOS15_LVCMOS18_SSTL135_SSTL15.STEPDOWN !00_127
+LIOB18.IOB_Y0.LVCMOS12_LVCMOS15_SSTL12_SSTL135_SSTL15.IN_ONLY !38_104 !38_72 !38_86 !39_73 !39_83 !39_93 !39_95 !39_97 38_78 38_80 38_94 39_103 39_79
+LIOB18.IOB_Y0.LVCMOS15.SLEW.FAST !38_114 !38_82 !39_101 !39_105 !39_111 !39_113 !39_77 !39_89 39_81
+LIOB18.IOB_Y0.LVCMOS15_LVCMOS18.DRIVE.I12_I16_I2_I4_I6_I8 !38_104 !38_72 !38_86 !39_73 !39_83 !39_97 39_93 39_95
+LIOB18.IOB_Y0.LVCMOS18.DRIVE.I12_I8 !38_104 !38_72 !38_86 !39_73 !39_83 !39_97 39_93 39_95
+LIOB18.IOB_Y0.LVCMOS18.SLEW.FAST !38_114 !39_101 !39_111 !39_77 38_82 39_105 39_113 39_81 39_89
+LIOB18.IOB_Y0.LVDS.DRIVE.I_FIXED !38_104 !38_72 !39_83 !39_97 38_24 38_48 38_86 39_33 39_47 39_49 39_73 39_93 39_95
+LIOB18.IOB_Y0.LVDS.IN_DIFF !38_126 !39_127 39_01
+LIOB18.IOB_Y0.LVDS.IN_ONLY !38_104 !38_72 !38_78 !38_80 !38_86 !38_94 !39_103 !39_73 !39_79 !39_83 !39_93 !39_95 !39_97 38_24 38_48 39_33 39_47 39_49
+LIOB18.IOB_Y0.LVDS.IN_USE !38_78 !38_80 !38_94 !39_79 38_24 38_48 39_33 39_47 39_49
+LIOB18.IOB_Y0.LVDS.OUT !38_104 !38_72 !38_82 !39_77 !39_81 !39_83 !39_97 38_86 39_73 39_93 39_95
+LIOB18.IOB_Y0.OBUF_HP_BANK_GLUE 31_086 32_066 33_111
+LIOB18.IOB_Y0.PULLTYPE.KEEPER !39_117 39_115 39_123
+LIOB18.IOB_Y0.PULLTYPE.NONE !39_117 !39_123 39_115
+LIOB18.IOB_Y0.PULLTYPE.PULLDOWN !39_115 !39_117 !39_123
+LIOB18.IOB_Y0.PULLTYPE.PULLUP !39_123 39_115 39_117
+LIOB18.IOB_Y0.SSTL12.DRIVE.I_FIXED !38_72 !38_86 !39_73 38_104 38_94 39_79 39_83 39_93 39_95 39_97
+LIOB18.IOB_Y0.SSTL12.IN_USE !38_78 !38_80 38_94 39_79
+LIOB18.IOB_Y0.SSTL12.SLEW.FAST !39_101 !39_77 38_114 38_82 39_105 39_111 39_113 39_81 39_89
+LIOB18.IOB_Y0.SSTL12_SSTL135.SLEW.SLOW !38_114 !39_101 !39_105 !39_111 !39_113 !39_89 38_82 39_77 39_81
+LIOB18.IOB_Y0.SSTL12_SSTL135_SSTL15.IN !38_126 39_127
+LIOB18.IOB_Y0.SSTL12_SSTL135_SSTL15.IN_DIFF !39_127 38_126 39_01
+LIOB18.IOB_Y0.SSTL135.DRIVE.I_FIXED !38_72 !38_86 !39_73 !39_83 38_104 38_78 38_94 39_93 39_95 39_97
+LIOB18.IOB_Y0.SSTL135.IN_USE !38_80 !39_79 38_78 38_94
+LIOB18.IOB_Y0.SSTL135.SLEW.FAST !39_77 38_114 38_82 39_101 39_105 39_111 39_113 39_81 39_89
+LIOB18.IOB_Y0.SSTL15.DRIVE.I_FIXED !38_104 !38_86 !39_73 38_72 38_78 38_80 39_79 39_83 39_93 39_95 39_97
+LIOB18.IOB_Y0.SSTL15.IN_USE !38_94 38_78 38_80 39_79
+LIOB18.IOB_Y0.SSTL15.SLEW.FAST !39_81 !39_89 38_114 38_82 39_101 39_105 39_111 39_113 39_77
+LIOB18.IOB_Y0.SSTL15.SLEW.SLOW !38_114 !39_101 !39_105 !39_111 !39_113 38_82 39_77 39_81 39_89
+LIOB18.IOB_Y0.ZIBUF_LOW_PWR 39_125
+LIOB18.IOB_Y1.DCITERMDISABLE.I 38_62
+LIOB18.IOB_Y1.IBUFDISABLE.I 39_39
+LIOB18.IOB_Y1.LVCMOS12.DRIVE.I2_I4_I6_I8 !38_30 !38_44 !39_23 38_32 38_34 39_55
+LIOB18.IOB_Y1.LVCMOS12.SLEW.FAST !38_26 !38_38 !38_46 !39_45 38_14 38_16 38_22 38_50 39_13
+LIOB18.IOB_Y1.LVCMOS12_LVCMOS15_LVCMOS18.IN 38_00 39_01
+LIOB18.IOB_Y1.LVCMOS12_LVCMOS15_LVCMOS18.SLEW.SLOW !38_14 !38_16 !38_22 !38_26 !38_38 !38_46 !38_50 !39_13 !39_45
+LIOB18.IOB_Y1.LVCMOS12_LVCMOS15_LVCMOS18_SSTL12_SSTL135_SSTL15.IN_ONLY !38_30 !38_44 !39_23 !39_55 38_24 38_48 39_33 39_47 39_49
+LIOB18.IOB_Y1.LVCMOS12_LVCMOS15_LVCMOS18_SSTL135_SSTL15.STEPDOWN !00_127
+LIOB18.IOB_Y1.LVCMOS15.SLEW.FAST !38_14 !38_16 !38_22 !38_26 !38_38 !38_50 !39_13 !39_45 38_46
+LIOB18.IOB_Y1.LVCMOS15_LVCMOS18.DRIVE.I12_I16_I2_I4_I6_I8 !38_30 !38_44 !39_23 !39_55 38_32 38_34
+LIOB18.IOB_Y1.LVCMOS18.SLEW.FAST !38_16 !38_26 !38_50 !39_13 38_14 38_22 38_38 38_46 39_45
+LIOB18.IOB_Y1.OBUF_HP_BANK_GLUE 30_041 32_016 33_061
+LIOB18.IOB_Y1.PULLTYPE.KEEPER !38_10 38_04 38_12
+LIOB18.IOB_Y1.PULLTYPE.NONE !38_04 !38_10 38_12
+LIOB18.IOB_Y1.PULLTYPE.PULLDOWN !38_04 !38_10 !38_12
+LIOB18.IOB_Y1.PULLTYPE.PULLUP !38_04 38_10 38_12
+LIOB18.IOB_Y1.SSTL12.DRIVE.I_FIXED !39_55 38_30 38_32 38_34 38_44 38_48 39_23 39_33
+LIOB18.IOB_Y1.SSTL12.IN_USE !39_47 !39_49 38_48 39_33
+LIOB18.IOB_Y1.SSTL12.SLEW.FAST !38_26 !38_50 38_14 38_16 38_22 38_38 38_46 39_13 39_45
+LIOB18.IOB_Y1.SSTL12_SSTL135.SLEW.SLOW !38_14 !38_16 !38_22 !38_26 !38_38 !39_13 38_46 38_50 39_45
+LIOB18.IOB_Y1.SSTL12_SSTL135_SSTL15.IN !38_126 !39_01 38_00
+LIOB18.IOB_Y1.SSTL12_SSTL135_SSTL15.IN_DIFF 38_00 38_126 39_01
+LIOB18.IOB_Y1.SSTL135.DRIVE.I_FIXED !38_44 !39_55 38_30 38_32 38_34 39_23 39_33 39_49
+LIOB18.IOB_Y1.SSTL135.IN_USE !38_48 !39_47 39_33 39_49
+LIOB18.IOB_Y1.SSTL135.SLEW.FAST !38_50 38_14 38_16 38_22 38_26 38_38 38_46 39_13 39_45
+LIOB18.IOB_Y1.SSTL15.DRIVE.I_FIXED !39_23 38_30 38_32 38_34 38_44 38_48 39_47 39_49 39_55
+LIOB18.IOB_Y1.SSTL15.IN_USE !39_33 38_48 39_47 39_49
+LIOB18.IOB_Y1.SSTL15.SLEW.FAST !38_38 !38_46 38_14 38_16 38_22 38_26 38_50 39_13 39_45
+LIOB18.IOB_Y1.SSTL15.SLEW.SLOW !38_14 !38_16 !38_22 !38_26 !39_13 38_38 38_46 38_50 39_45
+LIOB18.IOB_Y1.ZIBUF_LOW_PWR 38_02
+LIOB18.OUT_DIFF 39_17 39_43
+LIOB18.IOB_Y1.LVCMOS12_LVCMOS15_LVCMOS18_LVCMOS25_LVCMOS33_LVDS_25_LVTTL_SSTL135_SSTL15_TMDS_33.IN_ONLY !38_30 !38_44 !39_23 !39_55 38_24 38_48 39_33 39_47 39_49
+LIOB18.IOB_Y1.LVCMOS18.DRIVE.I12_I8 !38_30 !38_44 !39_23 !39_55 38_32 38_34
+LIOB18.IOB_Y1.LVCMOS12_LVCMOS15_LVCMOS18_LVCMOS25_LVCMOS33_LVTTL_SSTL135_SSTL15.SLEW.SLOW !38_14 !38_16 !38_22 !38_26 !38_38 !38_46 !38_50 !39_13 !39_45
diff --git a/database/virtex7/segbits_riob18.db b/database/virtex7/segbits_riob18.db
new file mode 100644
index 00000000..a5b23d8a
--- /dev/null
+++ b/database/virtex7/segbits_riob18.db
@@ -0,0 +1,68 @@
+RIOB18.DIFF.ZIBUF_LOW_PWR 38_124 39_03
+RIOB18.IOB_Y0.DCITERMDISABLE.I 39_65
+RIOB18.IOB_Y0.IBUFDISABLE.I 38_88
+RIOB18.IOB_Y0.IBUFDS_BANK_GLUE 38_008 38_028 38_040 39_015 39_021 39_037 39_041
+RIOB18.IOB_Y0.LVCMOS12.DRIVE.I2_I4_I6_I8 !38_104 !38_86 !39_73 !39_83 !39_97 38_72 39_93 39_95
+RIOB18.IOB_Y0.LVCMOS12.SLEW.FAST !38_82 !39_101 !39_81 !39_89 38_114 39_105 39_111 39_113 39_77
+RIOB18.IOB_Y0.LVCMOS12_LVCMOS15.IN !39_01 38_126 39_127
+RIOB18.IOB_Y0.LVCMOS12_LVCMOS15_LVCMOS18.IN 38_126 39_127
+RIOB18.IOB_Y0.LVCMOS12_LVCMOS15_LVCMOS18.SLEW.SLOW !38_114 !38_82 !39_101 !39_105 !39_111 !39_113 !39_77 !39_81 !39_89
+RIOB18.IOB_Y0.LVCMOS12_LVCMOS15_LVCMOS18_SSTL12_SSTL135_SSTL15.IN_ONLY !38_104 !38_72 !38_86 !39_73 !39_83 !39_93 !39_95 !39_97 38_78 38_80 38_94 39_103 39_79
+RIOB18.IOB_Y0.LVCMOS12_LVCMOS15_SSTL12_SSTL135_SSTL15.IN_ONLY !38_104 !38_72 !38_86 !39_73 !39_83 !39_93 !39_95 !39_97 38_78 38_80 38_94 39_103 39_79
+RIOB18.IOB_Y0.LVCMOS15.SLEW.FAST !38_114 !38_82 !39_101 !39_105 !39_111 !39_113 !39_77 !39_89 39_81
+RIOB18.IOB_Y0.LVCMOS15_LVCMOS18.DRIVE.I12_I16_I2_I4_I6_I8 !38_104 !38_72 !38_86 !39_73 !39_83 !39_97 39_93 39_95
+RIOB18.IOB_Y0.LVCMOS18.SLEW.FAST !38_114 !39_101 !39_111 !39_77 38_82 39_105 39_113 39_81 39_89
+RIOB18.IOB_Y0.LVDS.DRIVE.I_FIXED !38_104 !38_72 !39_83 !39_97 38_24 38_48 38_86 39_33 39_47 39_49 39_73 39_93 39_95
+RIOB18.IOB_Y0.LVDS.IN_DIFF !38_126 !39_127 39_01
+RIOB18.IOB_Y0.LVDS.IN_ONLY !38_104 !38_72 !38_78 !38_80 !38_86 !38_94 !39_103 !39_73 !39_79 !39_83 !39_93 !39_95 !39_97 38_24 38_48 39_33 39_47 39_49
+RIOB18.IOB_Y0.LVDS.IN_USE !38_78 !38_80 !38_94 !39_79 38_24 38_48 39_33 39_47 39_49
+RIOB18.IOB_Y0.LVDS.OUT !38_104 !38_72 !38_82 !39_77 !39_81 !39_83 !39_97 38_86 39_73 39_93 39_95
+RIOB18.IOB_Y0.LVDS_SSTL12_SSTL135_SSTL15.IN_DIFF !39_127 38_126 39_01
+RIOB18.IOB_Y0.PULLTYPE.KEEPER !39_117 39_115 39_123
+RIOB18.IOB_Y0.PULLTYPE.NONE !39_117 !39_123 39_115
+RIOB18.IOB_Y0.PULLTYPE.PULLDOWN !39_115 !39_117 !39_123
+RIOB18.IOB_Y0.PULLTYPE.PULLUP !39_123 39_115 39_117
+RIOB18.IOB_Y0.SSTL12.DRIVE.I_FIXED !38_72 !38_86 !39_73 38_104 38_94 39_79 39_83 39_93 39_95 39_97
+RIOB18.IOB_Y0.SSTL12.IN_USE !38_78 !38_80 38_94 39_79
+RIOB18.IOB_Y0.SSTL12.SLEW.FAST !39_101 !39_77 38_114 38_82 39_105 39_111 39_113 39_81 39_89
+RIOB18.IOB_Y0.SSTL12_SSTL135.SLEW.SLOW !38_114 !39_101 !39_105 !39_111 !39_113 !39_89 38_82 39_77 39_81
+RIOB18.IOB_Y0.SSTL12_SSTL135_SSTL15.IN !38_126 39_127
+RIOB18.IOB_Y0.SSTL12_SSTL135_SSTL15.IN_DIFF !39_127 38_126 39_01
+RIOB18.IOB_Y0.SSTL135.DRIVE.I_FIXED !38_72 !38_86 !39_73 !39_83 38_104 38_78 38_94 39_93 39_95 39_97
+RIOB18.IOB_Y0.SSTL135.IN_USE !38_80 !39_79 38_78 38_94
+RIOB18.IOB_Y0.SSTL135.SLEW.FAST !39_77 38_114 38_82 39_101 39_105 39_111 39_113 39_81 39_89
+RIOB18.IOB_Y0.SSTL15.DRIVE.I_FIXED !38_104 !38_86 !39_73 38_72 38_78 38_80 39_79 39_83 39_93 39_95 39_97
+RIOB18.IOB_Y0.SSTL15.IN_USE !38_94 38_78 38_80 39_79
+RIOB18.IOB_Y0.SSTL15.SLEW.FAST !39_81 !39_89 38_114 38_82 39_101 39_105 39_111 39_113 39_77
+RIOB18.IOB_Y0.SSTL15.SLEW.SLOW !38_114 !39_101 !39_105 !39_111 !39_113 38_82 39_77 39_81 39_89
+RIOB18.IOB_Y0.ZIBUF_LOW_PWR 39_125
+RIOB18.IOB_Y1.DCITERMDISABLE.I 38_62
+RIOB18.IOB_Y1.IBUFDISABLE.I 39_39
+RIOB18.IOB_Y1.LVCMOS12.DRIVE.I2_I4_I6_I8 !38_30 !38_44 !39_23 38_32 38_34 39_55
+RIOB18.IOB_Y1.LVCMOS12.SLEW.FAST !38_26 !38_38 !38_46 !39_45 38_14 38_16 38_22 38_50 39_13
+RIOB18.IOB_Y1.LVCMOS12_LVCMOS15_LVCMOS18.IN 38_00 39_01
+RIOB18.IOB_Y1.LVCMOS12_LVCMOS15_LVCMOS18.SLEW.SLOW !38_14 !38_16 !38_22 !38_26 !38_38 !38_46 !38_50 !39_13 !39_45
+RIOB18.IOB_Y1.LVCMOS12_LVCMOS15_LVCMOS18_SSTL12_SSTL135_SSTL15.IN_ONLY !38_30 !38_44 !39_23 !39_55 38_24 38_48 39_33 39_47 39_49
+RIOB18.IOB_Y1.LVCMOS15.SLEW.FAST !38_14 !38_16 !38_22 !38_26 !38_38 !38_50 !39_13 !39_45 38_46
+RIOB18.IOB_Y1.LVCMOS15_LVCMOS18.DRIVE.I12_I16_I2_I4_I6_I8 !38_30 !38_44 !39_23 !39_55 38_32 38_34
+RIOB18.IOB_Y1.LVCMOS18.SLEW.FAST !38_16 !38_26 !38_50 !39_13 38_14 38_22 38_38 38_46 39_45
+RIOB18.IOB_Y1.LVDS_SSTL12_SSTL135_SSTL15.IN_DIFF 38_00 38_126 39_01
+RIOB18.IOB_Y1.PULLTYPE.KEEPER !38_10 38_04 38_12
+RIOB18.IOB_Y1.PULLTYPE.NONE !38_04 !38_10 38_12
+RIOB18.IOB_Y1.PULLTYPE.PULLDOWN !38_04 !38_10 !38_12
+RIOB18.IOB_Y1.PULLTYPE.PULLUP !38_04 38_10 38_12
+RIOB18.IOB_Y1.SSTL12.DRIVE.I_FIXED !39_55 38_30 38_32 38_34 38_44 38_48 39_23 39_33
+RIOB18.IOB_Y1.SSTL12.IN_USE !39_47 !39_49 38_48 39_33
+RIOB18.IOB_Y1.SSTL12.SLEW.FAST !38_26 !38_50 38_14 38_16 38_22 38_38 38_46 39_13 39_45
+RIOB18.IOB_Y1.SSTL12_SSTL135.SLEW.SLOW !38_14 !38_16 !38_22 !38_26 !38_38 !39_13 38_46 38_50 39_45
+RIOB18.IOB_Y1.SSTL12_SSTL135_SSTL15.IN !38_126 !39_01 38_00
+RIOB18.IOB_Y1.SSTL12_SSTL135_SSTL15.IN_DIFF 38_00 38_126 39_01
+RIOB18.IOB_Y1.SSTL135.DRIVE.I_FIXED !38_44 !39_55 38_30 38_32 38_34 39_23 39_33 39_49
+RIOB18.IOB_Y1.SSTL135.IN_USE !38_48 !39_47 39_33 39_49
+RIOB18.IOB_Y1.SSTL135.SLEW.FAST !38_50 38_14 38_16 38_22 38_26 38_38 38_46 39_13 39_45
+RIOB18.IOB_Y1.SSTL15.DRIVE.I_FIXED !39_23 38_30 38_32 38_34 38_44 38_48 39_47 39_49 39_55
+RIOB18.IOB_Y1.SSTL15.IN_USE !39_33 38_48 39_47 39_49
+RIOB18.IOB_Y1.SSTL15.SLEW.FAST !38_38 !38_46 38_14 38_16 38_22 38_26 38_50 39_13 39_45
+RIOB18.IOB_Y1.SSTL15.SLEW.SLOW !38_14 !38_16 !38_22 !38_26 !39_13 38_38 38_46 38_50 39_45
+RIOB18.IOB_Y1.ZIBUF_LOW_PWR 38_02
+RIOB18.OUT_DIFF 39_17 39_43