When the DS1682’s Reset command is issued, it becomes a read-only brick. The original design of the DS1682 was intended for warranty type applications. After a tool or appliance was used for a set number of power ups (EVENTS) or hours of operations (ETC), the alarm limit would be reached and trigger the alarm output turning on an LED to indicate the warranty was up. To prevent tampering, the Reset function would clear the Alarm, but also make the device read-only permanently so that the user couldn’t tamper with the warranty times/events.
Hence if a Reset command is issued on the DS1682 the device does indeed become permanently read-only.