The yellow symbols on the right edge of the sheet symbol are called "sheet entries." They pass signals from the subsheet up to the top sheet, kind of like parameters in a function. Each sheet entry has a name and a direction - "input," "output," "bidirectional," and "unspecified." | The yellow symbols on the right edge of the sheet symbol are called "sheet entries." They pass signals from the subsheet up to the top sheet, kind of like parameters in a function. Each sheet entry has a name and a direction - "input," "output," "bidirectional," and "unspecified." |