*CB = CENTURY bit
*CEB = CENTURY ENABLE bit (when CEB is set to '1,' CB will toggle from '0' to '1' or from '1' to '0' at the turn of the century)
*FT = FREQUENCY TEST bit (must be set to '0' upon power for normal operation)
*0 = Must be set to '0'
*ST = STOP bit ('1' stops the oscillator)