BPHASE: direction
ANEBL: logic down enables all outputs
BNEBL: rising edge moves to next step
M0: logic high set Aout1 high Aout2 low.control along with M1
M1: determines the state of the outputs when xENBL = 0. Control along with M0.
SLEEP: logic low to enter low-power sleep mode and reset all internal logic.
方向用BPHASE 来控制,另外一些说的很多,有点混乱,以至于我不知道该将哪个引脚复用为定时器,并配置成PWM模式。