
A-D Converter
M30240 Group
Rev.1.00 Sep 24, 2003 Page 231 of 360
2.6.1.7 A-D converter and related registers
Figure 2.75: Memory map of A-D converter related registers
Figure 2.76: A-D converter related register (1)
004E16 A-D conversion interrupt control register
ADIC
03C016
A-D register 0
AD0
03C116
03C216
A-D register 1
AD1
00C316
03C416
A-D register 2
AD2
03C516
03C616
A-D register 3
AD3
03C716
03C816
A-D register 4
AD4
03C916
03CA16
A-D register 5
AD5
03CB16
03CC16
A-D register 6
AD6
03CD16
03CE16
A-D register 7
AD7
03CF16
03D416 A-D control register 2
ADCON2
03D516
03D616 A-D control register 0
ADCON0
03D716 A-D control register 1
ADCON1
A-D control register 0 (Note 1)
Symbol
Address
When reset
ADCON0
03D616
00000XXX2
b7
b6
b5
b4
b3
b2
b1
b0
Analog input pin select bit
0 0 0 : AN 0 is selected
0 0 1 : AN 1 is selected
0 1 0 : AN 2 is selected
0 1 1 : AN 3 is selected
1 0 0 : AN 4 is selected
1 0 1 : AN 5 is selected
1 1 0 : AN 6 is selected
1 1 1 : AN 7 is selected
(Note 2)
CH0
Bit symbol
Bit name
Function
CH1
CH2
A-D operation mode
select bit 0
0 0 : One-shot mode
0 1 : Repeat mode
1 0 : Single sweep mode
1 1 : Repeat sweep mode 0
Repeat sweep mode 1
(Note 2)
MD0
MD1
Trigger select bit
0 : Software trigger
1 : AD TRG trigger
TRG
ADST
A-D conversion start flag
0 : A-D conversion disabled
1 : A-D conversion started
Frequency select bit 0
0 : fAD/4 is selected
1 : fAD/2 is selected
CKS0
W
R
b2 b1 b0
b4 b3
Note 1: If the A-D control register is rewritten during A-D conversion, the conversion result is
indeterminate.
Note 2: When changing A-D operation mode, set analog input pin again.
A-D control register 0 (Note 1)
Symbol
Address
When reset
ADCON0
03D616
00000XXX2
b7
b6
b5
b4
b3
b2
b1
b0
Analog input pin select bit
0 0 0 : AN 0 is selected
0 0 1 : AN 1 is selected
0 1 0 : AN 2 is selected
0 1 1 : AN 3 is selected
1 0 0 : AN 4 is selected
1 0 1 : AN 5 is selected
1 1 0 : AN 6 is selected
1 1 1 : AN 7 is selected
(Note 2)
CH0
Bit symbol
Bit name
Function
CH1
CH2
A-D operation mode
select bit 0
0 0 : One-shot mode
0 1 : Repeat mode
1 0 : Single sweep mode
1 1 : Repeat sweep mode 0
Repeat sweep mode 1
(Note 2)
MD0
MD1
Trigger select bit
0 : Software trigger
1 : AD TRG trigger
TRG
ADST
A-D conversion start flag
0 : A-D conversion disabled
1 : A-D conversion started
Frequency select bit 0
0 : fAD/4 is selected
1 : fAD/2 is selected
CKS0
W
R
b2 b1 b0
b4 b3
Note 1: If the A-D control register is rewritten during A-D conversion, the conversion result is
indeterminate.
Note 2: When changing A-D operation mode, set analog input pin again.