PWM_A_EN
if ((misc & PWM_A_CLK_EN) && (misc & PWM_A_EN))
HCLR4(sc, PWM_MISC_REG_AB, (idx == 0) ? PWM_A_EN : PWM_B_EN);
HSET4(sc, PWM_MISC_REG_AB, (idx == 0) ? PWM_A_EN : PWM_B_EN);