code: def standby(self):
          
          register = self.MMA8452Q_Register['CTRL_REG1']
          self.board.i2c_read_request(self.address, register, 1,
                                      Constants.I2C_READ | Constants.I2C_END_TX_MASK,
                                      self.data_val, Constants.CB_TYPE_DIRECT)
  
  
          ctrl1 = self.wait_for_read_result()
  
          ctrl1 = (ctrl1[self.data_start]) & ~0x01
          self.callback_data = []
  
          self.board.i2c_write_request(self.address, [register, ctrl1])
docs: Put the device into standby mode so that the registers can be set.
          @return: No return value