In {HEAD ~ step} 405, {TAIL ~ a wait} is executed for a request to EEPROM stored data 
In { HEAD ~ step } 405 , { TAIL ~ a wait } is executed for a request to EEPROM stored data
OTH HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH