MSP430I2040: SD24 input range

Part Number:MSP430I2040

Hi Champs,

According to datasheet table5-2, it showed VID input range is +-928mv when SD24GAINx = 1 for specified performance. However, SD24 reference volt is 1.158v for internal reference volt. In theoretically , input range should be -VREF/GAIN=-1.158 ~ VREF/GAIN=1.158. Could you please tell me can we input voltage between 0.928v and 1.158v ? 

If input voltage is limited within +-928mv. Is LSB = 0.928/2^24 =  110nv ?

thanks for your reply in advance.