The input capture module has the task of capturing the curent value of the timer counter upon an input event. This module is mainly used for the frequency or time period measurements and pulse measurements (e.g. mean count rate measurement). Microcontroller dsPIC30F4013 contains 4 input capture modules, whereas dsPIC30F6014A contains 8 input capture modules.
The input capture module has multiple operatig modes selectable via the ICxCON register (control bit ICM<2:0>):