KXPS5 datasheet(5/6 Pages) ETC2

5 / 6 page

AN 009

Delay Time = 80mS

MOT_DELAY = (0001 0100 or 0x14)

Expected Results

When the registers are loaded with the recommended values and the MOT Enable pin (12) is

pulled high, the KXPS5 becomes armed for HDD protection. This means that the FF/MOT

interrupt will be triggered if the accelerometer experiences an event that exceeds any of the

above described thresholds and delays. In this case, FF/MOT will go high if all accelerometer

axis (X, Y, and Z) simultaneously drop below 0.4g for more than 80mS or if any accelerometer

axis (X, Y, or Z) go rise above 2.5g for more than 80mS. Figures 6 and 7 show how the KXPS5

interrupts will react to a typical event.

9 March 2006

Page 5 of 6

By monitoring the interrupt pin (11), or repeatedly reading the status register, CTRL_REGA

(0x0C), the user will be notified of a harmful event and must park/unload the HDD head for

protection. Note that the interrupts are selected to be unlatched, so they will return low after the

event has concluded. For additional information, please refer to the KXPS5 Data Sheet.

KXPS5 데이터시트(PDF) 5 Page - List of Unclassifed Manufacturers