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6
•Example 3: When Timer B0 underflow is generated during A/D pin conversion of any pins except AN
AN
0
AN
1
AN
2
AN
3
"1"
ADST flag
"0"
"1"
ADERR0 flag
"0"
"1"
ADERR1 flag
"0"
"1"
ADTCSF flag
"0"
"1"
ADSTT0 flag
"0"
"1"
ADSTT1 flag
"0"
"1"
ADSTRT0 flag
"0"
"1"
ADSTRT1 flag
"0"
"1"
IR bit in the ADIC
"0"
register
•Example 4: After Timer B0 underflow is generated and when Timer B0 underflow is generated again
AN
AN
AN
AN
"1"
ADST flag
"0"
"1"
ADERR0 flag
"0"
"1"
ADERR1 flag
"0"
ADTCSF flag
-
"1"
ADSTT0 flag
"0"
ADSTT1 flag
"1"
"0"
ADSTRT0 flag
"1"
"0"
ADSTRT1 flag
"1"
"0"
IR bit in the ADIC
"1"
register
"0"
ADST flag: Bit 6 in the ADCON0 register
ADERR0, ADERR1, ADTCSF, ADSTT0, ADSTT1, ADSTRT0 and ADSTRT1 flag: bits 0, 1, 3, 4, 5, 6 and 7 in the ADSTAT0 register
Figure 14.1.7.3 Each Flag Operation in ADSTAT0 Register Associated with the Operation
Example in Delayed Trigger Mode 0 (2)
R
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2
0 .
0
F
e
b
1 .
, 5
2
0
0
7
R
E
J
0
9
B
0
2
0
2
0 -
2
0
0
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, A
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Timer B0 underflow
Timer B0 underflow
Timer B1 underflow
Do not set to "1" by program
before Timer B1 underflow is genetaed
Timrt B0 underflow
Timer B0 underflow
(An interrupt does not affect A/D conversion)
Timer B1 underflow
0
1
2
3
Do not set to "1" by program
Set to "0" by interrupt request acknowledgement or a program
page 202
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9
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(Abort othrt pins conversion )
Timer B1 underflow
Set to "0" by interrupt request acknowledgement or a program
Set to "0" by program
pin
0
A/D pin input
voltage sampling
A/D pin conversion
Set to "0" by program
14. A/D Converter
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