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Chapter 19
(a) Timing example
ANI0
ANI1
ANI2
ANI3
A/D
conversion
ADA0CRn
INTAD
Conversion start
Set ADA0CE bit = 1
(b) Block diagram
Analog input pin
Figure 19-9
690
Data
1
Data
2
Data 1
Data 2
(
ANI0)
(
ANI1)
Data 1
(
ANI0)
ADA0PFT
match
ANI0
ANI1
ANI2
ANI3
ANI4
ANI5
.
.
.
.
ANIm
Timing example of continuous scan mode operation
(when power-fail comparison is made: ADA0S register = 03H)
User's Manual U18743EE1V2UM00
Data
3
Data
4
Data 3
Data 4
(
ANI2)
(
ANI3)
Data 2
Data 3
Data 4
(ANI1)
(
ANI2)
(
ANI3)
A/D
converter
A/D Converter (ADC)
Data
5
Data
6
Data
Data 5
Data 6
Data 7
(
ANI0)
(
ANI1)
(
ANI2)
Data 5
Data 6
(
ANI0)
(
ANI1)
ADA0PFT
unmatch
ADA0CRn registers
ADA0CR0
ADA0CR1
ADA0CR2
ADA0CR3
ADA0CR4
ADA0CR5
.
.
.
ADA0CRm
7
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