The F28M35x device has two voltage regulators. One regulator supplies the voltage required for the analog modules and the other regulator supplies the rest of the device. To use the digital voltage regulator, the total power must be within a specific limit. Should the application exceed this power budget, the digital voltage regulator and the 1.2 V input supplied externally will be disabled. Refer to the data manual for all power related information. The reset from the analog and the digital voltage regulators should be tied external to the device. There are a few different types of resets on a Concerto device. First, consider the device system reset, this will reset the Master subsystem, the Control subsystem, and the analog modules. If the reset is caused by an internal module, it will be fed back externally through the XRSn pin. Device reset can be caused by an external reset, the voltage monitors (either the digital or the analog), an M3 Watchdog time out and the M3 NMI Watchdog timeout (which was used by the missing clock signal detection). The Control subsystem reset can be caused by the external reset pin, the device system reset, the C28x NMI Watchdog or it can be forced by the C28x debugger or M3 software. Note that a Control subsystem reset responds to the external reset pin but it does not drive out on the external reset pin. For an M3 CPU software or debugger reset, can disable the reset to the Control subsystem. This way the user can reset the M3 through the debugger without resetting the C28x Control subsystem. Finally, there is an analog reset which occurs as part of any device system reset.