A logic option that allows the Compiler to choose the signal that feeds the most TRI buffers as a global output enable signal that is made available throughout the device on the global routing paths.

This option is ignored if it is assigned to anything other than a design entity. If you want to prevent the Compiler from automatically selecting a particular signal as global output enable, set the Global Signal option to Off on that signal. This option is available for ACEX^® 1K, APEX^™ 20K, APEX 20KC, APEX 20KE, APEX^™ II, ARM^®-based Excalibur^™, FLEX 10KE, MAX^® 3000, MAX 7000AE, and MAX 7000B devices.