{
  signal: 
  [
    {name: 'clock',       wave: 'pP|Pp', phase:.5, node:'...c..'},
    {name: 'idle',        wave: '01...', },
    {name: 'setLoadMode', wave: '0.1..',  node: '..a...'},
    {name: 'getLoadMode', wave: '0...=.', node: '....b..', phase:1.5}
   ,
  ],
   edge: [ 'a~>b see note'  ]
  ,config: { hscale: 2}
  ,head:   {text:'Changing the load mode'}
  ,foot:   {text:'Note. getLoadMode goes to a 1 only if that mode is supported'}
}