While there are no CMPSS modules in the F2833x/23xdevices, there are up to eight CMPSS modules available on the F2837xD/S/07x devices. Each module contains two comparators, two reference 12-bit DACs, two digital filters and one ramp generator. The CMPSS modules are useful for implementing peak current mode control and voltage trip monitoring, which are used in applications such as switched-mode power control and power factor correction. The module is designed around a pair of analog comparators which generates a digital output indicating if the voltage on the positive input is greater than the voltage on the negative input. The positive input to the comparator is always driven from an external pin. The negative input can be driven by either an external pin or an internal programmable 12-bit DAC as a reference voltage. Values written to the DAC can take effect immediately or be synchronized with ePWM events. A falling-ramp generator is available to control the internal DAC reference value for one comparator in the module, which enables peak current mode control in digital power applications. Each comparator output is fed through a programmable digital filter to prevent electrical switching noise from causing spurious trip signals. The output of the CMPSS generates trip signals to the ePWM event trigger submodule and GPIO structure. Additionally, the CMPSS features PWM blanking capability to clear-and-reset existing or imminent trip conditions near the ePWM cycle boundaries. Also, by using the analog subsystem interconnect scheme the CMPSS comparator positive and negative input signals are independently selectable.