M16C65 Datasheet, PDF (695/829 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.
27.2.6 A/D Control Register 1 (ADCON1)
27. A/D Converter
A/D Control Register 1
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
ADCON1
Address
03D7h
After Reset
0000 X000b
Bit Symbol
Bit Name
Function
RW
SCAN0
RW
A/D sweep pin select bit Function varies with operation mode
SCAN1
RW
MD2
A/D operation mode select 0 : Any mode other than repeat sweep mode 1
bit 1
1 : Repeat sweep mode 1
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 ADCON0
register
RW
ADSTBY A/D standby bit
0 : A/D operation stopped (standby)
1 : A/D operation enabled
RW
ADEX0
RW
Extended pin select bit Function varies with operation mode
ADEX1
RW
If the ADCON1 register is rewritten during A/D conversion, the conversion result is undefined.
MD2 (A/D Operation Mode Select Bit 1) (b2)
A/D operation mode is selected by a combination of bits MD1 to MD0 in the ADCON0 register and the
MD2 bit. Refer to Table 27.5 “A/D Operation Mode”.
ADSTBY (A/D Standby Bit) (b5)
If the ADSTBY bit is changed from 0 (A/D operation stopped) to 1 (A/D operation enabled), wait for 1
φA/D cycle or more before starting A/D conversion.
When the A/D converter is not used, no current flows in the A/D converter by setting the ADSTBY bit to
0 (A/D operation stopped: standby). This helps the power consumption to be reduced.
REJ09B0484-0030 Rev.0.30 Sep 09, 2008
Page 660 of 791