Fujitsu FR60 Hardware Manual page 396

CHAPTER 12 A/D CONVERTER
Figure 12.3-2 shows the conversion operation in scan conversion mode.
The A/D converter converts the analog input on channels AN0 to AN3 sequentially, and sets the INT bit
when conversion of all channels ends.
The interrupt request flag is set at the end of every conversion operation.
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Figure 12.3-2 Scan Conversion Mode
Example: Value of ACS bits = 010B (specifies scan conversion of
channels AN0 to AN3)
STAR
INT
Start of A/D conversion
Conversion
of channel
AN0
End of A/D conversion
Conversion
Conversion
Conversion
of channel
of channel
of channel
AN1
AN2 AN3
Sequential
conversion