M16C62_M Datasheet, PDF (431/615 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/60 SERIES

A-D Converter
Mitsubishi microcomputers
M16C / 62A Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
A-D control register 1 (Note)
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
ADCON1
Address
03D716
When reset
0016
Bit symbol
Bit name
A-D sweep pin select bit
SCAN0
Function
When single sweep and repeat sweep
mode 0 are selected
b1 b0
0 0 : AN0, AN1 (2 pins)
0 1 : AN0 to AN3 (4 pins)
1 0 : AN0 to AN5 (6 pins)
1 1 : AN0 to AN7 (8 pins)
RW
SCAN1
MD2
A-D operation mode
select bit 1
When repeat sweep mode 1 is selected
b1 b0
0 0 : AN0 (1 pin)
0 1 : AN0, AN1 (2 pins)
1 0 : AN0 to AN2 (3 pins)
1 1 : AN0 to AN3 (4 pins)
0 : Any mode other than repeat sweep
mode 1
1 : Repeat sweep mode 1
BITS
8/10-bit mode select bit
0 : 8-bit mode
1 : 10-bit mode
CKS1 ^{Frequency select bit 1}
0 : fAD/2 or fAD/4 is selected
1 : fAD is selected
VCUT
Vref connect bit
0 : Vref not connected
1 : Vref connected
OPA0
OPA1
External op-amp
connection mode bit
b7 b6
0 0 : ANEX0 and ANEX1 are not used
0 1 : ANEX0 input is A-D converted
1 0 : ANEX1 input is A-D converted
1 1 : External op-amp connection mode
Note: If the A-D control register is rewritten during A-D conversion, the conversion result is
indeterminate.
Figure 2.7.3. A-D converter-related registers (2)
2-114