The fourth subclause gives the definition of terms that apply specifically to that device type. Starting with clause 9 the commands in each of these clauses are unique to the device type, or they have interpretations, fields, or features that are specific for the device type. Therefore, it is specified separately for each device type. 4.2 Conventions Certain words and terms used in this International Standard have a specific meaning beyond the normal English meaning. These words and terms are defined either in clause 3 or in the text where they first appear.
Lower case is used for words having the normal English meaning.
Fields containing only one bit are usually referred to as the name bit instead of the name field. Numbers that are not immediately followed by lower-case b or h are decimal values.