Renesas M16C FAMILY series Hardware Manual page 244

M 1 6 C 2 / 8 G o r u p ( M 1 6 C
A/D Control Register 0
NOTES:
A/D Control Register 1
NOTES:
NOTES:
Figure 15.7 ADCON0 to ADCON2 Registers in One-Shot 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)
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
0 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.
2. AN0 to AN0 and AN2 to AN2 can be used in the same way as AN
0 7 0 7
ADGSEL 0 bits in the ADCON2 register to select the desired pin.
3. After rewriting the MD1 to MD0 bits, set the CH2 to CH0 bits over again using an another instruction.
(1)
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
1 0
ADCON1
Bit Symbol
SCAN0
SCAN1
MD2
BITS
CKS1
VCUT
(b7-b6)
1. If the ADCON1 register is rewritten during A/D conversion, the conversion result will be indeterminate.
2. If the VCUT bit is reset from "0" (Vref unconnected) to "1" (Vref connected), wait for 1 µs or more before starting
A/D conversion.
(1)
A/D Control Register 2
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
0 0
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 224
f o 3 8 5
Address After Reset
03D6 00000XXX
16 2
Bit Name
b2 b1 b0
Analog Input Pin
0 0 0 : Select AN
(2, 3)
Select Bit
0 0 1 : Select AN
0 1 0 : Select AN
0 1 1 : Select AN
1 0 0 : Select AN
1 0 1 : Select AN
1 1 0 : Select AN
1 1 1 : Select AN
b4 b3
A/D Operation Mode
0 0 : One-shot mode or delayed trigger mode
(3)
Select Bit 0
0,1
Trigger Select Bit 0 : Software trigger
1 : Hardware trigger (AD
A/D Conversion Start 0 : A/D conversion disabled
Flag 1 : A/D conversion started
See Table 15.2
Frequency Select Bit 0
to AN . Use the ADGSEL1 to
0 7
Address After Reset
03D7 00
16 16
Bit Name
A/D Sweep Pin
Invalid in one-shot mode
Select Bit
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
(2)
Vref Connect Bit 1 : Vref connected
Nothing is assigned. When write, set to "0".
When read, its content is "0".
Address After Reset
03D4 00
16 16
Bit Name
0 : Without sample and hold
A/D Conversion Method
Select Bit 1 : With sample and hold
b2 b1
A/D Input Group Select
0 0 : Select port P10 group
Bit
0 1 : Do not set
1 0 : Select port P0 group
1 1 : Select port P1/P9 group
Reserved Bit Set to "0"
Frequency Select Bit 2
See Table 15.2
Trigger Select Bit 1
Set to "0" in one-shot mode
Nothing is assigned. When write, set to "0".
When read, its content is "0".
15. A/D Converter
Function RW
0 RW
1
2
3 RW
4
5
6
RW
7
RW
RW
RW
trigger)
TRG
RW
RW
Function
RW
RW
RW
RW
RW
RW
RW
Function RW
RW
RW
RW
RW
RW
RW