Hi,all
TPS929120的AN上有一段关于PWM generator的话让人感到困惑：
Basically the PWM generator counts 256 pulses at base high frequency for PWM output cycle period and counts number of pulses determined by MSB 8 bits of 12-bit binary input at the same frequency for PWM ON period. The LSB 4 bits of 12-bit binary input is used to set up the dithering to realize total 12-bit resolution.
这里说周期是时钟的256倍，低4位是用于抖动功能的？这个抖动功能是怎么实现？
明明只有256个脉冲计数，然后公式又是如何实现4096个台阶的？
