<parts>
  <port name="PORTA" pins="5" outreg="PORTA" dirreg="!TRISA"
                   opencol="00010000">
  </port>

  <port name="PORTB" pins="8" outreg="PORTB" dirreg="!TRISB"
                     pullups="!RBPU" >
                     
    <interrupt name="PB_INT" mask="11110000"/>
    <extint    name="INT" pin="PORTB0" configbits="INTEDG"/>
  </port>

  <timer name="TIMER0" type="800" configregsA="OPTION"
                       counter="TMR0"
                       clockpin="PORTA4"
                       interrupt="T0_OVF"
                       prescalers="2,4,8,16,32,64,128,256">
  </timer>
    
</parts>
