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S e l e c t i n g S a m p l e a n d h o l d
b 7
S e t t i n g A D c o n t r o l r e g i s t e r 0 a n d A D c o n t r o l r e g i s t e r 1
b 7
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N o t e 1 : R e w r i t e t o a n a l o g i n p u t p i n s e l e c t b i t a f t e r c h a n g i n g A / D o p e r a t i o n m o d e .
N o t e 2 : W h e n f ( X
S e t t i n g A / D c o n v e r s i o n s t a r t f l a g
b 7
C o n v e r t s n o n - s e l e c t e d p i n a f t e r c o n v e r t i n g p i n s
s e l e c t e d t h r o u g h t h e A / D s w e e p p i n s e l e c t b i t .
T r a n s m i t t i n g c o n v e r s i o n r e s u l t t o A D r e g i s t e r i
( b 1 5 )
b 7
Setting A/D conversion start flag
b7
Figure 2.9.16. Set-up procedure of repeat sweep 1 mode
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
b 0
A D c o n t r o l r e g i s t e r 2 [ A d d r e s s 0 3 D 4
0
0
0
1
A D C O N 2
A / D c o n v e r s i o n m e t h o d s e l e c t b i t
1 : W i t h s a m p l e a n d h o l d
M u s t a l w a y s b e s e t t o " 0 "
b 0
AD control register 0
0
0
1 1
[Address 03D6
I n v a l i d i n r e p e a t s w e e p m o d e 0
R e p e a t s w e e p m o d e 0 i s s e l e c t e d
( N o t e 1 )
T r i g g e r s e l e c t b i t
0 : S o f t w a r e t r i g g e r
A / D c o n v e r s i o n s t a r t f l a g
0 : A / D c o n v e r s i o n d i s a b l e d
F r e q u e n c y s e l e c t b i t 0 ( N o t e 2 )
0 : f
/ 3 o r f
/ 4 i s s e l e c t e d
A D
A D
1 : f
o r f
/ 2 i s s e l e c t e d
A D
A D
) i s o v e r 1 0 M H z , t h e f
f r e q u e n c y m u s t b e u n d e r 1 0 M H z b y d i v i d i n g a n d s e t ø
I N
A D
b 0
A D c o n t r o l r e g i s t e r 0 [ A d d r e s s 0 3 D 6
1
A D C O N 0
A/D conversion start flag
1 : A/D conversion started
( b 8 )
b 0
b7
b0
A D c o n t r o l r e g i s t e r 0 [ A d d r e s s 0 3 D 6
0
A D C O N 0
A / D c o n v e r s i o n s t a r t f l a g
0 : A / D c o n v e r s i o n d i s a b l e d
page 229 of 354
]
1 6
b 7
0 0
1
] ADCON0
16
]
1 6
Start A/D conversion
AD register 0
[Address 03C1
AD register 1
[Address 03C3
AD register 2
[Address 03C5
AD register 3
[Address 03C7
b 0
AD register 4
[Address 03C9
AD register 5
[Address 03CB
AD register 6
[Address 03CD
AD register 7
[Address 03CF
Eight low-order bits of A/D conversion result
D u r i n g 1 0 - b i t m o d e
T w o h i g h - o r d e r b i t s o f A / D c o n v e r s i o n r e s u l t
D u r i n g 8 - b i t m o d e
W h e n r e a d , t h e c o n t e n t i s i n d e t e r m i n a t e
]
1 6
Stop A/D conversion
b 0
AD control register 1 [Address 03D7
1
ADCON1
Invalid in Repeat mode
A / D o p e r a t i o n m o d e s e l e c t b i t 1 ( N o t e 1 )
1 ( M u s t a l w a y s b e " 1 "
i n r e p e a t s w e e p m o d e 1 )
8/10-bit mode select bit
0 : 8-bit mode
1 : 10-bit mode
F r e q u e n c y s e l e c t b i t 1 ( N o t e 2 )
0 : f
/ 2 o r f
/ 4 i s s e l e c t e d
A D
A D
1 : f
o r f
/ 3 i s s e l e c t e d
A D
A D
Vref connect bit
1 : Vref connected
Reserved bit
f r e q u e n c y t o 1 0 M H z o r l o w e r .
A D
, 03C0
] AD0
16
16
, 03C2
] AD1
16
16
, 03C4
] AD2
16
16
, 03C6
] AD3
16
16
, 03C8
] AD4
16
16
, 03CA
] AD5
16
16
, 03CC
] AD6
16
16
, 03CE
] AD7
16
16
2. A/D Converter
]
16
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