On this slide some general usage notes for the watchdog timer are listed. The first is that the WDTOVF# signal should not be input directly to the reset pin on the MCU. This will cause the MCU to not be correctly initialized. Instead, it is recommended that the WDTOVF# signal be sent out as a reset signal for the entire system which will then cause the MCU to be reset in-turn. Users should also be careful when using low power modes along with the watchdog. If the watchdog is operating in watchdog timer mode and an attempt to transition into software standby mode is made, the MCU will not transition into software standby mode. Instead the MCU will transition into either sleep mode or all-module clock-stop mode depending on the MCU’s configuration. In order to transition into software standby mode when the watchdog is in watchdog timer mode, the user must first halt the watchdog by clearing the Timer Enable bit in the TCSR register. This only applies to watchdog timer mode, if interval timer mode is used then software standby mode can be entered into with no problems.