M16C65 Datasheet, PDF (703/829 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M16C/60

Under development
M16C/65 Group
Preliminary Specification
This is a preliminary specification and is subject to change.
27.4.1.2 A/D Control Register 1 (ADCON1) (In One-Shot Mode)
27. A/D Converter
A/D Control Register 1
b7 b6 b5 b4 b3 b2 b1 b0
1
0
Symbol
ADCON1
Address
03D7h
After Reset
0000 X000b
Bit Symbol
Bit Name
Function
RW
SCAN0
RW
A/D sweep pin select bit Invalid in one-shot mode
SCAN1
RW
MD2
A/D operation mode select
bit 1
Set to 0 in one-shot mode.
RW
—
(b3)
No register bit. If necessary, set to 0. Read as undefined value
—
CKS1 Frequency select bit 1
Refer to the CKS0 bit in the ADCON2
register
RW
ADSTBY A/D standby bit
Set to 1 (A/D operation enabled)
RW
ADEX0
b7 b6
0 0: ANEX0 and ANEX1 are not used
RW
Extended pin select bit 0 1: ANEX0 input is A/D converted
ADEX1
1 0: ANEX1 input is A/D converted
1 1: Do not set
RW
If the ADCON1 register is rewritten during A/D conversion, the conversion result is undefined.
A/D conversion start
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
IR bit in the ADIC register
A/D conversion
Set to 0 by acceptance of an
interrupt request or by a program
The above diagram applies under the following conditions:
y Bits CH2 to CH0 in the ADCON0 register are set to 010b (AN2).
y Bits ADGSEL1 to ADGSEL0 in the ADCON2 register are set to 00b (AN0 to AN7).
Figure 27.7 Operation Example in One-Shot Mode
REJ09B0484-0030 Rev.0.30 Sep 09, 2008
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