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2 scan conversion mode – FUJITSU MB91460 SERIES FR60 User Manual

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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)