Hi,
Ohoh, I am sorry, I got the resistor values mixed up.
Look at Figure 15-11 in the MC68HC908QY4/D, there should be a 9.1 V applied to /IRQ.
This is done with a 1 K to +12 V and a 9.1 V zener diode.
The 10 K resistor I was talking about, is just a pullup on the /RST pin.
This will always put the HC908QY/QT in Monitor mode
The other way is to use the schematic in Figure 15-12, or 15-13 depending if you want to use the external/internal clock. But this is only good for first time programming, that is the reset vector must be 0xff, 0xff.
Regards,
Ake