Motorola <br/><br/>
HC11M68HC11 Reference Manual 

 -  Motorola  1991 
 - p.250 
<br/><br/><label>Subjects--Topical Terms: </label> Pins and Connections  Parallal Input/Output 
<br/><br/><label>Dewey Class. No.: </label>621.3819642 M82H