m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 321

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

A-D CONVERTER
12.2 Block description
Fig. 12.2.5 Structure of A-D register i (1)
12-10
12.2.2 A-D register i (i = 0 to 11)
Figures 12.2.5 and 12.2.6 show the structures of the A-D register i. When the A-D conversion is completed,
the conversion result (contents of the successive approximation register) is stored into this register. When
the comparator function is selected, the value to be compared is stored in this register.
Each A-D register i corresponds to an analog input pin (AN
A-D register 0 (Addresses
A-D register 1 (Addresses
A-D register 2 (Addresses
A-D register 3 (Addresses
A-D register 4 (Addresses
A-D register 5 (Addresses
A-D register 6 (Addresses
A-D register 7 (Addresses
A-D register 0 (Addresses
A-D register 1 (Addresses
A-D register 2 (Addresses
A-D register 3 (Addresses
A-D register 4 (Addresses
A-D register 5 (Addresses
A-D register 6 (Addresses
A-D register 7 (Addresses
15 to 10
15 to 8
7 to 0
9 to 0
Bit
Bit
When 10-bit resolution mode is selected
When 8-bit resolution mode is selected
Reads an A-D conversion result.
The value is “0” at reading.
Reads an A-D conversion result.
The value is “0” at reading.
21
23
25
27
29
2B
2D
2F
21
23
25
27
29
2B
2D
2F
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
, 20
, 22
, 24
, 26
, 28
, 20
, 22
, 24
, 26
, 28
, 2E
, 2E
, 2A
, 2A
, 2C
, 2C
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
7905 Group User’s Manual Rev.1.0
)
Function
Function
A-D register 8 (Addresses
A-D register 9 (Addresses
A-D register 10 (Addresses
A-D register 11 (Addresses
A-D register 8 (Addresses
A-D register 9 (Addresses
A-D register 10 (Addresses
A-D register 11 (Addresses
(b15)
(b15)
b7
b7
i
).
E1
E3
E5
E7
E1
E3
E5
E7
(b8)
(b8)
b0
b0
16
16
16
16
16
16
16
16
, E0
, E2
, E4
, E6
, E0
, E2
, E4
, E6
b7
b7
16
16
16
16
16
16
16
16
)
)
)
)
)
)
)
)
Undefined
Undefined
At reset
At reset
0
0
R/W
R/W
RO
RO
–
–
b0
b0