m5m51016btp Renesas Electronics Corporation., m5m51016btp Datasheet - Page 243

• Manufacturer Part Number: m5m51016btp
• Description: Renesas 16-bit Single-chip Microcomputer M16c Family / M16c/20 Series
• Manufacturer: Renesas Electronics Corporation.

M30245 Group
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
Table 2.9.11. Variation of the successive comparison register and Vref while A/D conversion is in
Figure 2.9.20. Theoretical A/D conversion characteristics (8-bit mode)
A/D converter stopped
2nd comparison
3rd comparison
1st comparison
8th comparison
Result of A/D conversion
03
02
01
00
FF
FE
2048
V
Conversion
complete
REF
16
16
16
16
16
16
x 3
0
progress (8-bit mode)
V
256
page 234 of 354
n
REF
n
n
n
Successive approximation register
b9
1
1
9
This data transfers to bit 0 to
bit 7 of AD register i.
9
9
9
n
n
n
0 0 0 0 0 0 0 0 0
1 0 0 0 0 0 0 0 0
x 1
0 0 0 0 0 0 0 0 0
8
8
8
1st comparison result
n
n
1 0 0 0 0 0 0 0
7
7
2nd comparison result
n
n
6
6
V
256
REF
n
n
5
5
n
n
x 2
4
4
n
n
3
3
n
1 0 0
2
V
256
REF
0 0
Theoretical A/D conversion
characteristic of general 8-bit
A/D converter
b0
x 3
V
V
V
V
V
REF
REF
REF
REF
REF
2
2
2
2
2
V
256
REF
[V]
±
–
±
±
x 4
V
2048
V
V
V
REF
REF
REF
REF
4
4
4
Theoretical A/D conversion
characteristic in the 8-bit mode
[V]
–
±
±
V
256
REF
2048
V
V
V
REF
REF
REF
8
8
x 254
V
ref
[V]
–
± ...... ±
Analog input voltage
change
V
2048
REF
V
256
n
n
REF
9
9
= 1
= 0
V
[V]
256
x 255
REF
+
–
n
n
8
8
–
V
V
= 1
= 0
REF
REF
V
4
4
2. A/D Converter
2048
REF
V
REF
+
–
[V]
V
V
REF
REF
8
8