-# 3.3 PCD Database C structure.\r
-# PCD Database C structure is generated by build tools in PCD driver's autogen.h/\r
+# 3.3 PCD Database binary file\r
+# PCD Database binary file will be created at build time as the standalone binary image. \r
+# To understand the binary image layout, PCD Database C structure is still generated \r
+# as comments by build tools in PCD driver's autogen.h/\r