关于ADC10CTL0,，手册中有这样一段

SREFx Bits 15-13 Select reference.
000 VR+ = VCC and VR- = VSS
001 VR+ = VREF+ and VR- = VSS
010 VR+ = VeREF+ and VR- = VSS. Devices with VeREF+ only.
011 VR+ = Buffered VeREF+ and VR- = VSS. Devices with VeREF+ pin only.
100 VR+ = VCC and VR- = VREF-/ VeREF-. Devices with VeREF- pin only.
101 VR+ = VREF+ and VR- = VREF-/ VeREF-. Devices with VeREF+/- pins only.
110 VR+ = VeREF+ and VR- = VREF-/ VeREF-. Devices with VeREF+/- pins only.
111 VR+ = Buffered VeREF+ and VR- = VREF-/ VeREF-. Devices with VeREF+/- pins only.

如
VR+ = VeREF+，指的是使用外部参考吗？
Devices with VeREF+/- pins only.，这是什么意思呢？

谢谢 此帖出自小平头技术问答