3e516e1f_ver_v3_3___MakerBot_Industries__NAME
[PIN] 6 [FUNCTION] This pin is the input pin for the reset signal. This pin is active low, which means that a LOW value will reset the stepper driver. The full details on what a reset means are located in the A3977 datasheet, but essentially it resets the phase table to zero. This pin is pulled high with a 1K ohm resistor. [NAME] 
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Stepper Driver v3.3 - MakerBot Industries
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