I'm confused about the timing requirements for toggling WDI without causing a reset. I have WDT = 0V and WDR = 0V It looks like I need WDI to start out low for some long period of time. When I'm ready for NRESET to go high, I need to set WDI High for X ms. From the datasheet, The lower window frame is 6.27ms - 9.46ms. I think this means that WDI needs to be high for at least 6.27 ms. Question 1: Does WDI need to go low in the lower window? If so, how long does it need to be active for? Question 2: If WDI only needs to be active in the lower window, it looks like I can drive WDI low any time in the Window frame in the 190ms < 300ms following the initial 10ms? Question 3: What should the timing really look like? a) My current setup is driving low for 600mS (I expect this to force a reset) b) Kick the watchdog by setting WDI High for 10ms. c) Set WDI low for 200ms d) Repeat from step b I assume I should be able to loop on b-c indefinitely without tripping a reset.