TMS320F28377S: PWM模块同步信号传输的问题

Part Number: TMS320F28377S

PWM1模块输出过零同步信号:

EPwm1Regs.TBCTL.bit.SYNCOSEL = TB_CTR_ZERO;

PWM2同步输出配置为输入,信号传给PWM3

EPwm2Regs.TBCTL.bit.SYNCOSEL = TB_SYNC_IN;

PWM3同步使能:

EPwm1Regs.TBCTL.bit.PHSDIR = TB_UP;
EPwm1Regs.TBCTL.bit.PHSEN = TB_ENABLE;              

我的问题是,当PWM2时钟不使能的情况下,PWM1的同步信号还能传到PWM3吗?