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M16C/64A Group
Table 27.13
Registers and Settings in Single Sweep Mode
Register
PCR
AINRST
AD0 to AD7
ADCON2
ADCON0
ADCON1
Note:
1.
This table does not describe a procedure.
A/D conversion start
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
IR bit in the
ADIC register
The above diagram applies under the following conditions:
•
Bits SCAN1 to SCAN0 in the ADCON1 register are 01b (AN0 to AN3 (4 pins)).
•
Bits ADGSEL1 to ADGSEL0 in the ADCON2 register are 00b (AN0 to AN7).
Figure 27.12 Operation Example in Single Sweep Mode
R01UH0136EJ0210 Rev.2.10
Jul 31, 2012
Bit
Set to 1 ( INT6 input disabled) when using the AN2_4 pin for
PCR5
analog input.
Set to 1 ( INT7 input disabled) when using the AN2_5 pin for
PCR6
analog input.
Set to 1 (key input disabled) when using pins AN4 to AN7 for
PCR7
analog input.
AINRST1,
Select whether open-circuit detection assist function is used or
AINRST0
not.
b9 to b0
A/D conversion result can be read.
ADGSEL1,
Select analog input pin group.
ADGSEL0
Select φ AD frequency.
CKS2
CH2 to CH0
Disabled
MD1 to MD0
Set to 10b.
TRG
Select a trigger.
ADST
Set to 1 to start A/D conversion and set to 0 to stop it.
Select φ AD frequency.
CKS0
SCAN1, SCAN0
Select analog input pin.
MD2
Set to 0.
Select φ AD frequency.
CKS1
ADSTBY
Set to 1 when performing A/D conversion.
ADEX1, ADEX0
Set to 00b.
(1)
Setting
Single A/D conversion
Set to 0 by acceptance of an
interrupt request or by a program
27. A/D Converter
Time
Page 637 of 800
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