diff --git a/libraries/core/register/STC8x/STC8Gx_REG.h b/libraries/core/register/STC8x/STC8Gx_REG.h
index 8fd98e73dde5c394c47b8978e118a05516140cf2..42ccca22bea0a8077283e159686b9ad795f1de17 100644
--- a/libraries/core/register/STC8x/STC8Gx_REG.h
+++ b/libraries/core/register/STC8x/STC8Gx_REG.h
@@ -386,6 +386,9 @@ sbit P41 = P4^1;
 sbit P42 = P4^2;
 sbit P43 = P4^3;
 sbit P44 = P4^4;
+sbit P45 = P4^5;
+sbit P46 = P4^6;
+sbit P47 = P4^7;
 						
 sbit P50 = P5^0;
 sbit P51 = P5^1;