Just a note to say the AN10258 has been updated (2004/10/21)with a correction to the MCB900 schematic (Fig 5). The old version indicates that the target (reset) pin is P1.6 where it should say P1.5. Also the transistor circuit has been modified. So if there are others, like me, trying to get the circuit in Rev 01 of the app note to work... quit now and switch to the circuit in Rev 02.
GB
GB