| DUTY_SCALE | This register controls the increase or decrease step scale for high speed channel0. |
| DUTY_CYCLE | This register is used to increase or decrease the duty every reg_duty_cycle_hsch0 cycles for high speed channel0. |
| DUTY_NUM | This register is used to control the num of increased or decreased times for high speed channel0. |
| DUTY_INC | This register is used to increase the duty of output signal or decrease the duty of output signal for high speed channel0. |
| DUTY_START | When reg_duty_num_hsch0 reg_duty_cycle_hsch0 and reg_duty_scale_hsch0 has been configured. these register won’t take effect until set reg_duty_start_hsch0. this bit is automatically cleared by hardware. |