{HEAD ~ a gate electrode} of said fifth P channel MOS transistor receives {TAIL ~ a signal} formed by inverting said mode trigger signal 
receives
{ HEAD ~ a gate electrode } of said fifth P channel MOS transistor receives { TAIL ~ a signal } formed by inverting said mode trigger signal
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH