Panasonic MN101C77C - Manual (Page 483)

Operation
Chapter 15 A/D Converter
XV - 9
Figure 15-3-1 Operation of A/D Conversion
To read the value of the A/D conversion, A/D conversion should be done several times to
prevent noise error by confirming the match of level by program, or by using the average
value.
T
AD
1 - 2 3 4 12
ANST flag
A/D conversion clock
A/D conversion start
A/D conversion
T
S
Hold Sampling
bit 9 comparison
bit 8 comparison
bit 0 comparison
Determine
bit 1 Determine
bit 8 Determine
bit 9
A/D interrupt (ADIRQ)
Determine
bit 0
A/D conversion complete