Global Signal logic option

A logic option that specifies whether the signal should be available throughout the device on the global routing paths. Global signals can be both pin- and logic-driven. Clock, output enable, register control, and memory control signals can be global signals. Turning on this option for a pin or a single-output logic function signal is equivalent to feeding the signal through a GLOBAL buffer. Turning off this option for a particular signal prevents any of the Auto Global options from using the signal as an automatic global signal.

This option is available for all Intel devices.

For these supported device ( Arria® II GX, and Stratix® series) families, a setting of on is equivalent to "global clock".

Scripting Information

Keyword: global_signal

Settings:on | off | "global clock" | "regional clock" | "fast regional clock" | "dual-fast regional clock" | "dual-regional clock" | "periphery clock"