Renesas M16C FAMILY series Hardware Manual page 254

M 1 6 C 2 / 8 G o r u p ( M 1 6 C
A/D Control Register 0
b7
NOTES:
A/D Control Register 1
b7
NOTES:
1. If the ADCON1 register is rewritten during A/D conversion, the conversion result will be indeterminate.
2. AN0
3. If the VCUT bit is reset from "0" (Vref unconnected) to "1" (Vref connected), wait for 1 µs or more before starting
A/D Control Register 2
b7
NOTES:
Figure 15.17 ADCON0 to ADCON2 Registers in Simultaneous Sample Sweep Mode
R e . v 2 0 . 0 J a . n 3 , 1 2 0 0 7
R E J 0 9 B 0 0 4 7 0 - 2 0 0
2 / , 8 M 1 6 C 2 / 8 ) B
(1)
b6 b5 b4 b3 b2 b1 b0
Symbol
1 0
ADCON0
Bit Symbol
CH0
CH1
CH2
MD0
MD1
TRG
ADST
CKS0
1. If the ADCON0 register is rewritten during A/D conversion, the conversion result will be indeterminate.
(1)
b6 b5 b4 b3 b2 b1 b0
Symbol
1 0
ADCON1
Bit Symbol
SCAN0
SCAN1
MD2
BITS
CKS1
VCUT
(b7-b6)
to AN0 and AN2 to AN2 can be used in the same way as AN
0 7 0 7
its in the ADCON2 register to select the desired pin.
A/D conversion.
(1)
b6 b5 b4 b3 b2 b1 b0
Symbol
0 1
ADCON2
Bit Symbol
SMP
ADGSEL0
ADGSEL1
(b3)
CKS2
TRG1
(b7-b6)
1. If the ADCON2 register is rewritten during A/D conversion, the conversion result will be indeterminate.
page 234
f o 3 8 5
Address After Reset
03D6 00000XXX
16
Bit Name
Analog Input Pin Invalid in simultaneous sample sweep mode
Select Bit
b4 b3
A/D Operation Mode
1 0 : Single sweep mode or simultaneous
Select Bit 0
sample sweep mode
Refer to Table 15.9
Trigger Select Bit
A/D Conversion Start Fag 0 : A/D conversion disabled
1 : A/D conversion started
Refer to Table 15.2
Frequency Select Bit 0
Address After Reset
03D7 00
16 16
Bit Name
When selecting simultaneous sample sweep
A/D Sweep Pin
mode
(2)
Select Bit
b1 b0
0 0 : AN to AN
0
0 1 : AN to AN
0
1 0 : AN to AN
0
1 1 : AN to AN
0
A/D Operation Mode
0 : Any mode other than repeat sweep
Select Bit 1
mode 1
8/10-Bit Mode Select Bit 0 : 8-bit mode
1 : 10-bit mode
Refer to Table 15.2
Frequency Select Bit 1
(3)
Vref Connect Bit 1 : Vref connected
Nothing is assigned. When write, set to "0".
When read, its contents is "0".
to AN . Use the ADGSEL1 to ADGSET0
0 7
Address After Reset
03D4 00
16 16
Bit Name
Set to "1" in simultaneous sample
A/D Conversion Method
sweep mode
Select Bit
b2 b1
A/D Input Group
0 0 : Select port P10 group
Select Bit
0 1 : Do not set
1 0 : Select port P0 group
1 1 : Select port P1/P9 group
Reserved Bit "0"
Set to
Frequency Select Bit 2 Refer to Table 15.2
Refer to Table 15.9
Trigger select bit 1
Nothing is assigned. When write, set to "0".
When read, its content is "0".
2
Function RW
RW
RW
RW
RW
RW
RW
RW
RW
Function
RW
RW
(2 pins)
1
(4 pins)
3
RW
(6 pins)
5
(8 pins)
7
RW
RW
RW
RW
RW
Function
15. A/D Converter
RW
RW
RW
RW
RW
RW
RW