看了,都是一样的描述,
- The voltage reference generator is used to generate VREF, which can be applied to either comparator
- input terminal. The CEREF1x (VREF1) and CEREF0x (VREF0) bits control the output of the voltage
- generator. The CERSEL bit selects the comparator terminal to which VREF is applied. If external signals
- are applied to both comparator input terminals, the internal reference generator should be turned off to
- reduce current consumption. The voltage reference generator can generate a fraction of the device V
- CC
- or
- of the voltage reference of the integrated precision voltage reference source. Vref1 is used while CEOUT
- is 1, and Vref0 is used while CEOUT is 0. This allows the generation of a hysteresis without using external
- components
说的是实现滞回功能,有点难以理解,不过不用这么高级的 功能,先不管它了.
| 
楼主
