TC78H670FTG When Step mode is changed during operating, Step resolution can be set by SET_EN pin and UP-DW pin. Step mode is changed synchronously with Step Clock. SET_EN pin input Function L Setting step mode is invalid H Setting step mode is available UP-DW pin input Function L Change step mode (lower side) to high resolution H Change step mode (upper side) to Low resolution [Example: Full Step ⇔ 1/8 Step] H EN L H SET_EN L H UP-DW L H CLK L Step setting 1/1 1/2 1/4 1/8 1/4 9 2019-11-28