LRQn high duration            15940ns  24203ns  41600ns
  SBY low duration             (....allophone length....)
 
[[File:SP0256 ALD Detail.png]]
 
* From the Z80 perspective, the stuff with 180..210ns timings reacts immediately.
* However, the LRQ high duration of 15..41us is visible to the Z80 (though well programmed / existing Z80 software should not rely on the presence of this delay).