low cost high cost
                             serial ISD monitor   ICE       ICE
extra chip area needed            -        +       -         -       
speed penalty                     -        +	   -         -
interrupt occupied                +        -	   +-        -
RAM/stack/code space occupied     +        -	   +-        -
vonNeumann code space needed      +        -	   *         *
single stepping, stop&run         +        +	   +         +
resources inspection              +        +	   +         +
breakpoints                       +        -	   +         +
conditional breakpoints           -        -       -         +
traces                            -        -	   -         +
PC application needed             v        +-	   v         v
correctable                       -        +	   +         +
download update w/o disconnect    +        ?       +         +
pins occupied                     +-       -	   -         -
various interface possible        -        +	   n/a       n/a