如上图，为使用需求， 目前希望通过ENx 引脚 分别控制三路DCDC的上电、下电。
目前遇到的问题是，配置好寄存器，EN信号开启和关闭后，电源输出能够按照EN信号响应开关，但是无斜率呈现（上下电斜率无法调节）。
使用目前config1=0 config2=1 使用的op reg, DCDC1_CTRL (00h) =0x1C DCDC1_AVS (05h) =0xb8 DCDC1_OP (04h)=0x38 DCDC1_LIMIT (06h) =0xFF EN1_SET2 (30h)=0x04
通过调节DCDC1_OP (04h)=0x38 DCDC1_OP (04h)=0x00 可以控制电源的斜率电压上下电（根据寄存器CTRL(00)可控斜率），但因为00对应电压有0.5V ，需求是从0V 上下电。（如上图所示）
想请问设置好寄存器后， EN信号本就不支持 开启带斜率输出，还是我的配置上（IO信号或者寄存器）需要调整呢 ？
as the picture shown above,I need controlling three DCDCs output by ENx Signal, but after setting reg CTRL00、OP04、AVS05，LIMIT06, EN1_SET2 (30h). By changing EN pin level, It can't output voltage with aim slew rate, while change reg[04] is useful to output voltage while slew rate , but it can't power on or power off from 0V(the least voltage 0.5V as spec defined )
Can EN signal control output voltage with slew rate?
