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M
1
6
C
2 /
6
A
G
o r
u
p
(
M
1
6
A/D control register 0
b7
b6
NOTE:
1. If the ADCON0 register is rewritten during A/D conversion, the conversion result will be indeterminate.
A/D control register 1
b7
b6
NOTES:
A/D control register 2
b7
b6
NOTE:
1. If the ADCON2 register is rewritten during A/D conversion, the conversion result will be indeterminate.
Figure 14.1.3.2 ADCON0 to ADCON2 Registers in Single Sweep Mode
R
e
. v
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
C
2 /
6
, A
M
1
6
C
2 /
6
, B
M
1
(1)
b5
b4
b3
b2
b1
b0
Symbol
1
0
ADCON0
Bit symbol
Analog Input Pin
CH0
Select Bit
CH1
CH2
MD0
A/D Operation Mode
Select Bit 0
MD1
Trigger Select Bit
TRG
A/D Conversion Start
ADST
Flag
CKS0
Frequency Select Bit 0
(1)
b5
b4
b3
b2
b1
b0
Symbol
1
0
ADCON1
Bit symbol
A/D Sweep Pin
SCAN0
Select Bit
SCAN1
A/D Operation Mode
MD2
Select Bit 1
8/10-Bit Mode Select Bit
BITS
CKS1
Frequency Select Bit 1
VCUT
V
Nothing is assigned. When write, set to "0".
(b7-b6)
When read, its content is "0".
1. If the ADCON1 register is rewritten during A/D conversion, the conversion result will be indeterminate.
2. AN
to AN
can be used in the same way as AN
30
32
register to select the desired pin.
3. If the VCUT bit is reset from "0" (V
REF
conversion.
(1)
b5
b4
b3
b2
b1
b0
Symbol
0
0
ADCON2
Bit symbol
A/D Conversion Method
SMP
Select Bit
A/D Input Group
ADGSEL0
Select Bit
ADGSEL1
Reserved Bit
(b3)
CKS2
Trigger Select Bit 1
TRG1
Nothing is assigned. When write, set to "0".
(b7-b6)
When read, its content is "0".
page 191
f o
3
2
9
6
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2 /
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) T
Address
After reset
03D6
00000XXX
16
2
Bit name
Invalid in single sweep mode
b4 b3
1 0 : Single sweep mode or simultaneous
sample sweep mode
0 : Software trigger
1 : Hardware trigger (AD
0 : A/D conversion disabled
1 : A/D conversion started
Refer to Table 14.2 A/D Conversion
Frequency Select
Address
After reset
03D7
00
16
16
Bit name
When selecting single sweep mode
(2)
b1 b0
0 0 : AN
to AN
0
0 1 : AN
to AN
0
1 0 : AN
to AN
0
1 1 : AN
to AN
0
0 : Any mode other than repeat sweep
mode 1
0 : 8-bit mode
1 : 10-bit mode
Refer to Table 14.2 A/D Conversion
Frequency Select
(3)
Connect Bit
1 : V
connected
REF
REF
to AN
. Use the ADGSEL1 to ADGSEL0 bits in the ADCON2
0
7
connected), wait for 1 µs or more before starting A/D
unconnected) to "1" (V
REF
Address
After reset
03D4
00
16
16
Bit name
0 : Without sample and hold
1 : With sample and hold
b2 b1
0 0 : Select port P10 group (AN
0 1 : Select port P9 group (AN
1 0 : Do not set
1 1 : Do not set
"0"
Set to
Frequency Select Bit 2
Refer to Table 14.2 A/D Conversion
Frequency Select
Set to "0" in single sweep mode
Function
RW
RW
RW
RW
RW
RW
RW
trigger)
TRG
RW
RW
Function
RW
RW
(2 pins)
1
(4 pins)
3
(6 pins)
5
RW
(8 pins)
7
RW
RW
RW
RW
Function
RW
RW
RW
)
i
)
3i
RW
RW
RW
RW
14. A/D Converter
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