Renesas M16C/60 Series Hardware Manual page 203

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M16C/6N5 Group
A-D control register 0 (Note 1)
b7 b6 b5 b4 b3 b2
0 1
Note 1: If the ADCON0 register is rewritten during A-D conversion, the conversion result will be indeterminate.
Note 2: AN to AN
00 07
ADGSEL1 to ADGSEL0 bits to select the desired pin.
Note 3: After rewriting the MD1 to MD0 bits, set the CH2 to CH0 bits over again using another instruction.
A-D control register 1 (Note 1)
b7 b6 b5 b4 b3 b2
1 0
Note 1: If the ADCON1 register is rewritten during A-D conversion, the conversion result will be indeterminate.
Note 2: If the VCUT bit is reset from "0" (V
starting A-D conversion.
Figure 1.16.5 ADCON0 Register and ADCON1 Register in Repeat Mode
Rev.1.00 2003.05.30 page 189
b1 b0
Symbol
ADCON0
Bit symbol
CH0
Analog input pin select bit
CH1
CH2
MD0
A-D operation mode
select bit 0
MD1
Trigger select bit
TRG
A-D conversion start flag
ADST
Frequency select bit 0
CKS0
, and AN to AN can be used in same way as AN
20 27
b1 b0
Symbol
ADCON1
Bit symbol
SCAN0
A-D sweep pin select bit
SCAN1
A-D operation mode
MD2
select bit 1
BITS 8/10-bit mode select bit
Frequency select bit 1
CKS1
V
VCUT
REF
OPA0
External op-amp
connection mode bit
OPA1
unconnected) to "1" (V
REF
Address After reset
03D6 00000XXX
16
Bit name
b2 b1 b0
0 0 0 : AN
0 0 1 : AN
0 1 0 : AN
0 1 1 : AN
1 0 0 : AN
1 0 1 : AN
1 1 0 : AN
1 1 1 : AN
b4 b3
0 1 : Repeat mode
0 : Software trigger
1 : AD
0 : A-D conversion disabled
1 : A-D conversion started
See Note 2 for the ADCON2
register
to AN
0
Address After reset
03D7 00
16
Bit name
Invalid in repeat mode
Set to "0" when repeat mode is
selected
0 : 8-bit mode
1 : 10-bit mode
See Note 2 for the ADCON2
register
connect bit (Note 2) 1 : V
REF
b7 b6
0 0 : ANEX0 and ANEX1 are not used
0 1 : ANEX0 input is A-D converted
1 0 : ANEX1 input is A-D converted
1 1 : External op-amp connection mode
connected), wait for 1 µs or more before
REF
A-D Converter
2
Function
is selected
0
is selected
1
is selected
2
is selected
3
is selected
4
is selected
5
is selected (Note 2)
6
is selected (Note 3)
7
(Note 3)
trigger
TRG
. Use the ADCON2 register's
7
16
Function
connected
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW