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Chapter 44 A/D Converter
4.Operation of A/D Converter
4.2 Scan conversion mode
(1) Activation channel selection
(2) A/D activation (Trigger: Software trigger/Reload timer/External trigger)
(3) INT flag clear, BUSY flag set
(4) AN0 conversion
a. Sample hold, conversion (conversion a + conversion b + conversion c)
b. Conversion end
c. Buffers the conversion value.
(5) AN1 conversion
(6) AN2 conversion
(7) AN3 conversion
(8) INT flag set, BUSY flag clear
(9) Next A/D activation
(10) INT flag clear, BUSY flag set
Scan start
channel
selection
Activation
(trigger)
AN input
Buffers
Conversion end
(INT)
BUSY
AN1
AN2 AN3
ADT0
ADT1
ADT2
ADT3
a, b, c
AN0 AN1
AN2 AN3
AN0
(6)
(5)
(4)
(3)
(2)
(1)
(7)
(8)
(9)
(10)
AN1 conversion value
AN2 conversion value
AN3 conversion value
AN0 conversion value
Sample hold
AN0
(5)
(4)