{signal: [
  {name: 'clk',       wave: 'p....|.....|.....'},
  {name: 'req.addr',  wave: 'x3..x|.4..x|.5..x', data: ['addr', 'addr', 'addr']},
  {name: 'req.data',  wave: 'x....|.4..x|.5..x', data: ['wdata1', 'wdata2']},
  {name: 'req.ben',   wave: 'xx..x|.4..x|.5..x', data: ['0b1111', '0b1111']},
  {name: 'req.stb',   wave: '010..|.10..|.10..', node: '.a.....d......'},
  {name: 'req.rw',    wave: '0....|.1...|.....', node: '..............'},
  {name: 'req.src',   wave: '0....|.....|.....'},
  {name: 'req.priv',  wave: '0....|.....|.....'},
  {name: 'req.rvso',  wave: '01..0|.1..0|.1..0', node: '.b.......e....'},
  {},
  {name: 'rsp.data',  wave: '2..32|...42|...52', data: ['0', 'rdata', '0', '0', '0', '1']},
  {name: 'rsp.ack',   wave: '0..10|...10|...10', node: '.........f....'},
  {name: 'rsp.err',   wave: '0....|.....|.....'},
  {},
  {name: 'rvs_valid', wave: '0.1..|....0|.....', node: '..c.......g...'}
],
 edge: ['a~>c', 'b~>c', 'd~>g', 'e~>g', 'f~>g']
}