is_event_ftd

	IS_EVENT_FTD(ftd)

	This macro determines whether or not a value represents an
	on event Frequency Time Descriptor.

	ftd		FTD value to analyze

	This macro returns values as follows:

	TRUE			this is an event FTD
	FALSE			this is not an event FTD

	This macro is found in: macro_h

	Related macros:

	BUILD_EVENT_FTD, BUILD_EVENT_PLUS_DELAY_FTD, EXTRACT_FTD_EVENT,
	EXTRACT_FTD_EVENT_DELAY, IS_ONE_SHOT_FTD, IS_PERIODIC_FTD,
	BUILD_PERIODIC_FTD