m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 328

• Manufacturer Part Number: m37905
• Description: Mitsubishi 16-bit Single-chip Microcomputer 7700 Family / 7900 Series
• Manufacturer: Renesas Electronics Corporation.

Table 12.3.2 Change of successive approximation register and V
Table 12.3.3 Change of successive approximation register and V
Conversion completed
Conversion completed
A-D converter halt
A-D converter halt
2nd comparison
10th comparison
3rd comparison
8th comparison
1st comparison
2nd comparison
3rd comparison
1st comparison
:
:
:
:
Successive approximation register
Successive approximation register
b9
n
n
b9
n
n
1
1
n
n
n
n
1
1
9
9
9
9
9
9
9
9
n
n
n
n
n
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
1 0 0 0 0 0 0 0 0
n
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
1 0 0 0 0 0 0 0 0
8
8
8
8
8
1st comparison result
8
1st comparison result
n
n
1 0 0 0 0 0 0 0
n
n
1 0 0 0 0 0 0 0
7
7
2nd comparison result
7
7
2nd comparison result
n
n
n
n
6
6
6
6
n
n
n
n
5
5
5
5
:
:
:
:
n
n
n
n
4
4
4
4
7905 Group User’s Manual Rev.1.0
n
n
n
n
3
3
3
3
n
1 0 0
n
n
2
2
2
0 0
n
n
1
1
b0
b0
n
1
0
V
V
V
V
V
V
V
V
V
V
REF
2
REF
2
REF
2
REF
2
REF
2
REF
2
REF
2
REF
2
REF
2
REF
2
[V]
–
[V]
–
2048
V
V
V
V
2048
V
V
V
V
REF
REF
4
REF
4
REF
4
REF
REF
4
REF
4
REF
4
ref
ref
[V]
–
[V]
–
during A-D conversion (10-bit resolution)
during A-D conversion (8-bit resolution)
2048
V
V
V
2048
V
V
V
REF
REF
REF
8
8
REF
REF
REF
8
8
12.3 A-D conversion method
Change of V
Change of V
[V]
–
[V]
–
A-D CONVERTER
......
......
2048
V
2048
V
:
:
REF
:
:
REF
•n
•n
•n
•n
9
9
9
9
= 1
= 0
= 1
= 0
V
[V]
1024
256
V
[V]
REF
REF
+
–
+
–
ref
ref
V
V
V
V
•n
•n
–
REF
4
REF
4
•n
•n
–
REF
REF
4
4
8
8
8
8
= 1
= 0
2048
V
= 1
= 0
2048
V
REF
REF
+
–
+
–
V
V
V
V
REF
REF
[V]
8
8
[V]
REF
8
REF
8
12-17