Compositions containing calcium phosphate and microcrystalline cellulose are useful as excipients in the preparation of solid dosage forms containing active pharmaceutical ingredients, particularly those prepared by processes involving multiple compaction steps. This is accomplished by building into the core an energy-absorbing zone that can be collapsed by a substantial amount and in a relatively controlled fashion over a substantial period of time under the influence of a continued radially inward pressure exerted by the roll of wound material. Different embodiments of the analog test cells selectively test multiple analog signals provided in an integrated circuit. Both agents monitor each other and restart each other if an agent is determined to not be operating properly. Thus, the user can easily classify the objects without explicitly specifying classification conditions or instructing the performing of the classification processing. The setting and resetting of the latch can be gated through a selectable delay so as to discriminate for excursions that persist for a longer or shorter time.