m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 401
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m37905
Manufacturer Part Number
m37905
Description
Mitsubishi 16-bit Single-chip Microcomputer 7700 Family / 7900 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.M37905.pdf
(565 pages)
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Price
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Manufacturer:
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APPLICATIONS
18.1 Application example of A-D converter
18-4
Fig. 18.1.2 Application example of A-D converter, using single sweep mode with pins AN
Interrupt disabled, no interrupt requested
b7
Setting of pin AN
b7
b7
b7
0 0 0
0
0
Setting of A-D conversion start bit to “1.”
b7
0
0
0: During A-D
Continued from preceding Figure 18.1.1.
1
1
conversion.
0 0
0
0 0 0 0
1
1
8
0
0 0 0
to one-shot mode
b0
b0
b0
b0
interrupt request
No interrupt requested
Interrupt disabled
A-D conversion
A-D conversion interrupt control register
(Address 70
A-D conversion frequency ( AD
One-shot mode
A-D conversion start bit
Analog input pin select bits 1
A-D control register 2
(Address DB
A-D control register 1
(Address 1F
1 0 0 0: Pin AN
A-D control register 0
(Address 1E
b3
bit = “1” ?
See Table 12.2.1.
b0
A-D conversion frequency ( AD
0 : A-D conversion halts.
Resolution select bit
V
REF
b2
1 : 10-bit resolution mode
See Table 12.2.1.
0 : Pin V
A-D conversion starts.
b1 b0
A-D control register 0
(Address 1E
connection select bit
Trigger generated, A-D conversion started
1: A-D conversion, using one-shot
mode with pin AN
: It may be either “0” or “1.”
16
REF
)
16
16
16
is connected.
)
)
)
8
is selected.
16
)
8
, is completed.
)
select bit 0
)
select bit 1
7905 Group User’s Manual Rev.1.0
Interrupt disabled, no interrupt requested
b7
Interrupt disabled, no interrupt requested
b7
Setting of pin AN
b7
0 0 0
Setting of A-D conversion start bit to “1.”
b7
Setting of pin AN
b7
0 0 0
Setting of A-D conversion start bit to “1.”
b7
0: During A-D
0: During A-D
1
conversion.
conversion.
1
0 0 0 0
0 0 0 0
0
Continued on Figure 18.1.3.
0
1 0 0 1
1 0 1 0
9
to one-shot mode (Note)
b0
10
b0
Interrupt disabled
No interrupt requested
interrupt request
interrupt request
to one-shot mode (Note)
A-D conversion
A-D conversion
A-D conversion interrupt control register
(Address 70
Interrupt disabled
No interrupt requested
b0
A-D conversion interrupt control register
(Address 70
b0
bit = “1” ?
bit = “1” ?
b0
b0
Analog input pin select bits 1
b3
1 0 0 1: Pin AN
A-D conversion starts.
A-D control register 2
(Address DB
A-D control register 0
(Address 1E
Analog input pin select bits 1
A-D conversion starts.
A-D control register 2
(Address DB
b2
A-D control register 0
(Address 1E
1 0 1 0: Pin AN
b3
1: A-D conversion, using one-shot
1: A-D conversion, using one-shot
Trigger generated, A-D conversion started
b1 b0
Trigger generated, A-D conversion started
b2
mode with pin AN
mode with pin AN
b1 b0
16
16
)
)
16
16
9
)
16
16
)
is selected.
)
)
10
is selected.
10
9
, is completed.
, is completed.
0
to AN
11
(2)
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