Hardware manual

Microcomputer Technical Q&A
130
Q&A No.: QAH8S-244
Category: A/D Converter
Subject: A/D Conversion in Simultaneous Sampling Operation
Question
How does A/D conversion operate with group scan mode simultaneous sampling?
Answer
An example of A/D conversion operation with group scan mode simultaneous sampling is shown
below.
ADST
ADDRA
ADDRB
ADDRC
ADDRD
Idle Idle
Sample
A
Conver-
sion A
Idle
Sample
C
Sample
C
Conver-
sion C
Idle
Sample
A
Conver-
sion A
Idle
Conversion
B
Sample
B
Idle
Conversion
D
Sample
D
Sample
D
Idle
Conversion
B
Sample
B
Idle
Result A
Result B
Result C
Result D
Result A
Result B
Example of Group Scan Mode Simultaneous Sampling Operation