An integrated circuit, and method of reviewing values of one or more signals occurring within that integrated circuit, are provided. With this, the projected height of the coil end portion of the stator can be reduced. During the programmed VBP, ventricular events are effectively blanked out. The planetary roller mechanism receives the output from the motor unit and the output from the planetary roller mechanism is transmitted to the timing belt. Successive memory layers have a decreasing number of memory locations.