M16C6NK Datasheet, PDF (222/404 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/60 SERIES

Under development
This document is under development and its contents are subject to change.
M16C/6N Group (M16C/6NK, M16C/6NM)
16. A/D Converter
A/D Control Register 0 ⁽¹⁾
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
ADCON0
Address
03D6h
After Reset
00000XXXb
Bit Symbol
Bit Name
Function
RW
CH0
RW
CH1
Analog Input Pin Select Bit
Function varies
with each operation mode
RW
CH2
RW
MD0
MD1
A/D Operation Mode
Select Bit 0
b4 b3
0 0 : One-shot mode
RW
0 1 : Repeat mode
1 0 : Single sweep mode
1 1 : Repeat sweep mode 0 or
RW
Repeat sweep mode 1
TRG
Trigger Select Bit
0 : Software trigger
1 : ADTRG trigger
RW
ADST
A/D Conversion Start Flag
0 : A/D conversion disabled
1 : A/D conversion started
RW
CKS0 ^{Frequency Select Bit 0}
Refer to NOTE 2 for ADCON2
Register
RW
NOTE:
1. If the ADCON0 register is rewritten during A/D conversion, the conversion result will be indeterminate.
A/D Control Register 1 ⁽¹⁾
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
ADCON1
Address
03D7h
After Reset
00h
Bit symbol
Bit name
Function
RW
SCAN0
A/D Sweep Pin Select Bit
Function varies
with each operation mode
RW
SCAN1
RW
MD2
A/D Operation Mode
Select Bit 1
0 : Any mode other than repeat
sweep mode 1
RW
1 : Repeat sweep mode 1
BITS
8/10-Bit Mode Select Bit
0 : 8-bit mode
1 : 10-bit mode
RW
CKS1 Frequency Select Bit 1
Refer to NOTE 2 for ADCON2
Register
RW
VCUT VREF Connect Bit ⁽²⁾
0 : VREF not connected
1 : VREF connected
RW
OPA0
External Op-Amp
Function varies
RW
Connection Mode Bit
with each operation mode
OPA1
RW
NOTES:
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.
Figure 16.2 ADCON0 Register and ADCON1 Register
Rev.2.00 Nov 28, 2005 page 204 of 378
REJ09B0124-0200