M30245_06 RENESAS [Renesas Technology Corp], M30245_06 Datasheet - Page 230

• Manufacturer Part Number: M30245_06
• Description: RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/20 SERIES
• Manufacturer: RENESAS [Renesas Technology Corp]

M30245 Group
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
Figure 2.9.7. Set-up procedure of one-shot mode, with an external trigger selected
( b 1 5 )
Reading conversion result
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
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
b7
Setting A/D conversion start flag
b 7
b 7
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
0
0
1
0
1
0
0 0
0
I N
page 221 of 354
) i s o v e r 1 0 M H z , t h e f
b 0
1
b 0
( b 8 )
b 0
b 0
b0
A/D conversion start flag
A/D conversion start flag
A n a l o g i n p u t p i n s e l e c t b i t ( N o t e 1 )
One-shot mode is selected (Note 1)
Trigger select bit
A / D c o n v e r s i o n s t a r t f l a g
b7
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
M u s t a l w a y s b e s e t t o “ 0 ”
Frequency select bit 0 (Note 2)
1 : W i t h s a m p l e a n d h o l d
1 : A/D conversion started
0 : A/D conversion disabled
b2 b1 b0
1 : AD
0 : A / D c o n v e r s i o n d i s a b l e d
0 0 0 : A N
0 0 1 : A N
0 1 0 : A N
0 1 1 : A N
1 0 0 : A N
1 0 1 : A N
1 1 0 : A N
1 1 1 : A N
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
A D C O N 2
AD control register 0 [Address 03D6
ADCON0
0 : f
1 : f
AD control register 0 [Address 03D6
ADCON0
AD control register 0 [Address 03D6
ADCON0
AD
AD
TRG
/3 or f
or f
trigger
AD
0
1
2
3
4
5
6
7
AD
i s s e l e c t e d
i s s e l e c t e d
i s s e l e c t e d
i s s e l e c t e d
i s s e l e c t e d
i s s e l e c t e d
i s s e l e c t e d
i s s e l e c t e d
/2 is selected
A D
/4 is selected
When AD
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
b0
Start A/D conversion
S t o p A / D c o n v e r s i o n
TRG
E i g h t l o w - 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
During 10-bit mode
During 8-bit mode
Two high-order bits of A/D conversion result
When read, the content is indeterminate
pin level becomes from “H” to “L”
AD register 0
AD register 1
AD register 2
AD register 3
AD register 4
AD register 5
AD register 6
AD register 7
1 6
16
16
16
]
]
]
]
b 7
0 0
[Address 03C1
[Address 03C3
[Address 03C5
[Address 03C7
[Address 03C9
[Address 03CB
[Address 03CD
[Address 03CF
1
0
16
16
16
16
16
16
16
16
, 03C0
, 03C2
, 03C4
, 03C6
, 03C8
, 03CA
, 03CE
, 03CC
b0
I n v a l i d i n o n e - s h o t m o d e
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 )
8 / 1 0 - b i t m o d e s e l e c t b i t
V r e f c o n n e c t b i t
16
16
16
16
16
F r e q u e n c y s e l e c t b i t 1 ( N o t e 2 )
Reserved bit
A D
16
16
16
0 ( M u s t a l w a y s b e “ 0 ” i n o n e - s h o t m o d e )
1 : V r e f c o n n e c t e d
AD control register 1 [Address 03D7
ADCON1
0 : 8 - b i t m o d e
1 : 1 0 - b i t m o d e
0 : f
1 : f
] AD0
] AD1
] AD2
] AD3
] AD4
] AD7
] AD5
] AD6
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
A D
/ 2 o r f
o r f
A D
A D
/ 3 i s s e l e c t e d
/ 4 i s s e l e c t e d
2. A/D Converter
16
]