  
Xerox PE120
Samsung 4200 4720
  ,   .
  .       PORTB2
 Samsung 4720, Xerox PE120 -   (PINB.4 =0.  Samsung 4200 - 1) 

   fuse   Uniprof
cksel0 
cksel1   (4.8MGz)
SUT0 
SUT 
CKDIV8 
WDTON 
EESAVE 
SPIEN 

   fuse   CodeVision
cksel0 = 1 
cksel1 = 0   (4.8MGz)
SUT0 = 0  
SUT1 = 1 
CKDIV8 = 0  
WDTON = 1  
EESAVE = 1  
RSTDSBL = 1 
BODLEVEL0 = 1 
BODLEVEL1 = 1 
SPMEN = 1 