diff --git a/ECP5/tiledata/BANKREF8/bits.db b/ECP5/tiledata/BANKREF8/bits.db
index e1c6da9..bc5ef05 100644
--- a/ECP5/tiledata/BANKREF8/bits.db
+++ b/ECP5/tiledata/BANKREF8/bits.db
@@ -77,6 +77,14 @@
 F84B0
 F85B0
 
+.config_enum BANK.VCCIO 1V5
+1V2 !F3B0 !F16B0 !F17B0 !F18B0
+1V5 !F3B0 !F16B0 !F17B0 !F18B0
+1V8 F3B0 F16B0 !F17B0 !F18B0
+2V5 !F3B0 !F16B0 F17B0 !F18B0
+3V3 !F3B0 !F16B0 !F17B0 F18B0
+NONE !F3B0 !F16B0 F17B0 !F18B0
+
 .config_enum CLKOP_ENABLE DISABLED
 DISABLED !F77B0
 ENABLED F77B0