If a resolved signal of composite type is associated

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: omposite type is associated as an actual in a port map aspect, that is equivalent to each of its subelements being associated in the same port map aspect. If a subelement of a resolved signal of composite type has a driver in a given process, then every scalar subelement of that signal must have a driver in the same process, and the collection of all of those drivers taken together constitute one source of the signal. The default value associated with a scalar signal defines the value component of a transaction that is the initial contents of each driver (if any) of that signal. The time component of the transaction is not defined, but the transaction is understood to have already occurred by the start of simulation. Examples: signal S : STANDARD.BIT_VECTOR (1 to 10) ; signal CLK1, CLK2 : TIME ; signal OUTPUT : WIRED_OR MULTI_VALUED_LOGIC; NOTES 1--Ports of any mode are also signals. The term signal is used in this standard to refer to objects declared either by signal declarations or by port declarations (or to subelements, slices, or aliases of such objects). It also refers to the imp...
View Full Document

Ask a homework question - tutors are online