Hi tony
when HYS=0, DISABLED — CMOS input, then
VIH,VIL are defined in Table 23. GPIO DC Parameters IMX6SDLCEC
when HYS=1, ENABLED — Schmitt trigger input, then
Input Hysteresis is turned on at input curcuit (see Table 23)
Hysteresis - Wikipedia, the free encyclopedia
Best regards
igor
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