Processor ports

Processor input and output ports are named and declared. A port may be an input (<in> tag) or an output (<out> tag). For each input/output, the following attributes can be defined:

• type (mandatory): contains the base type of a data, i.e., a basic type identifier that describes the type of the data received/generated by the port. When the data is scalar, this is the actual data type; when the data is an array, this is the type of the data composing the array.
• depth (optional, default is 0): contains the depth of the array if applicable.
• cardinality (optional, only for out ports with depth ): contains the number of elements of the generated array. This value can be provided only if it is a constant, i.e., the number of elements does not vary for each instance of data. When the data depth is greater than 1, the format for the cardinality attribute is a column-separated list of integers (for example, "2:3" codes an array containing 2 arrays of 3 elements).