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TMS320F28069:比较器模块中的斜坡发生器:其斜率是否可编程?

Other Parts Discussed in Thread: TMS320F28069

我正在做有关Buck电路中的COT控制,考虑采用TMS320F28069中比较器模块中的斜坡发生器产生斜率补偿信号。

在下面的问答中看到:

https://e2e.ti.com/support/microcontrollers/c2000/f/171/t/639644?TMS320F28069-Ramp-Generator-in-Comparator-Subsystem-less-slope-

“Datasheet says the reference 12-bit DAC uses the most significant 12 bits of the RAMPSTS countdown register as its input. The low 4 bits of the RAMPSTS countdown register effectively act as a prescale for the falling-ramp rate configurable with RAMPDECVALA.”

这其中说,RAMPSTS寄存器的低4位可以用来修改斜率值,但是,我在TMS320F28069的用户手册中未找到有这方面的介绍。

现在我想询问以下问题:

1、TMS320F28069是否可以通过上述寄存器修改斜率值?

2、其斜率值范围如何计算?