R5F21133DFP RENESAS [Renesas Technology Corp], R5F21133DFP Datasheet - Page 136

• Manufacturer Part Number: R5F21133DFP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY/R8C/Tiny SERIES
• Manufacturer: RENESAS [Renesas Technology Corp]

R8C/13 Group
Rev.1.20
REJ09B0111-0120
Figure 14.1 A/D Converter Block Diagram
V
A V
R E F
S S
Jan 27, 2006
CH0 to CH2, ADGSEL0, CKS0: Bits in ADCON0 register
CKS1, VCUT: Bits in ADCON1 register
P 1
P 1
P1
P 1
P 0
P 0
P0
P 0
P 0
P 0
P0
P 0
f
A D
0
1
2
3
7
6
5
4
3
2
1
0
/ A N
/ A N
/AN
/ A N
/ A N
/ A N
/AN
/ A N
/ A N
/ A N
/AN
/ A N
V C U T = 0
VCUT=1
8
9
10
1 1
0
1
2
3
4
5
6
7
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S u c c e s s i v e c o n v e r s i o n r e g i s t e r
1/2
R e s i s t o r l a d d e r
A D r e g i s t e r
Data bus
CH2,CH1,CH0=100
C H 2 , C H 1 , C H 0 = 1 0 1
C H 2 , C H 1 , C H 0 = 1 1 0
CH2,CH1,CH0=111
C H 2 , C H 1 , C H 0 = 0 0 0
CH2,CH1,CH0=001
C H 2 , C H 1 , C H 0 = 0 1 0
CH2,CH1,CH0=011
CH2,CH1,CH0=100
C H 2 , C H 1 , C H 0 = 1 0 1
CH2,CH1,CH0=110
CH2,CH1,CH0=111
1/2
2
2
2
2
2
2
2
2
2
2
2
2
C K S 0 = 0
C K S 0 = 1
A D C O N 0
CKS1=0
CKS1=1
A D G S E L 0 = 0
ADGSEL0=1
Decoder
A/D conversion rate
selection
V
V
com
I N
14. A/D Converter
Comparator
AD