
XR68C681
1<
Bits 7 - 4: “Change in Logic State” Identification Bits
% (+($% H% $I $ '$ & H- + '%I % H- +
'%I ($$ + ( (% #, - #,1 #+ % H- + '%I $' '- ( -('
% ( & + % + ( (%" & ( ($(+& H--(-I ( & %(- '%$(- HI (+($
(( #, HI #+ H- + '%I $ $' '- + %" (' (" &
( +' (% & 3(- '%$(- (+($% % HI
# $%" (+ ( ( #,1 !('% '- ( -(' %" ( @ ( '( -(' HI
Bits 3 - 0: “The Current State of Input Pins IP0 - IP3”
% (+($% H$ &I $ +' ' -(' % #, - #,1 ( (%
# $ H# , - + I (" % $ +(-