The signals detailed here are the Zorro III mode signals.  While some of
this information is the same as in the Zorro II  signal description  in the
Zorro II Compatibility section, many bus signals that seem alike behave
differently in Zorro III mode than Zorro II mode.  These can be a very
important differences; thus the complete set of signals is detailed here.

 power connections           dma control signals 
 clock signals               address and related control signals 
 system control signals      data and related control signals 
 slot control signals