{
  signal: [
  {name: 'clock',        wave: 'P......', phase:0.5},
  {name: 'okToRead',     wave: '1..=...', node: '...b.....'},
  {name: 'readReq',      wave: '1.0....', node: '..a.....'},
  {name: 'readyToRead',  wave: '01.0...'},
  {name: 'finalBit',     wave: '=0.....',data: ["1/0"]},
  {name: 'frameID_rOut', wave: '==.....', data: ["previous","frameID of the oneproc that's ready"]},
  {name: 'read',         wave: '0......', },
  {name: 'rAddr[3:0]',   wave: '=......', data: ["irr", "addrA", "addrB", "addrC", "addrD"]},
  {name: 'rData[31:0]',  wave: 'x......', data: ["dataA", "dataB", "dataC", "dataD"]}
],
  edge: [ 'a~>b see note' ],
  config: { hscale: 2},
  head:   {text:'Null read sequence'},
  foot:   {text:'note. The transition depends on the availability of all procs in the SP'}
}