Instrument-control Toolkit - pp_data
- Loadable Function: pp_data 
(parallel, data) - Loadable Function: 
d =pp_data(parallel) -  
Sets or Read the Data lines.
Inputs
parallel - instance of octave_parallel class.
data - data parameter to be set of type Byte.Outputs
If data parameter is omitted, the pp_data() shall return current Data lines state as the result d.