Fujitsu MB96300 series Hardware Manual page 457

MB96300 Super Series Hardware Manual
Figure 18.2-7 Switching of ADC Reference Voltage (LSEL="0", HSEL="1" or LSEL="1", HSEL="0")
AVCC
AVRH
AVRL/AVRH2
AVSS
Note:
This setting can be used in the case the low reference voltage of the A/D converter is equal to AVSS
potential (e.g. system ground potential).
CHAPTER 18 A/D CONVERTER
ADC
AVCC
High reference voltage
ADECR
LSEL=0 HSEL=1
LSEL=1 HSEL=0
Low reference voltage
AVSS
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