--- /dev/null
+/*
+ * pic18f66j55.h - device specific declarations
+ */
+
+#ifndef __PIC18F66J55_H__
+#define __PIC18F66J55_H__ 1
+
+#include "pic18f67j50.h"
+
+#undef __CONFIG1L
+#undef __CONFIG1H
+#undef __CONFIG2L
+#undef __CONFIG2H
+#undef __CONFIG3L
+#undef __CONFIG3H
+
+// Configuration Bits
+#define __CONFIG1L 0x17FF8
+#define __CONFIG1H 0x17FF9
+#define __CONFIG2L 0x17FFA
+#define __CONFIG2H 0x17FFB
+#define __CONFIG3L 0x17FFC
+#define __CONFIG3H 0x17FFD
+
+#endif
+