
R8C/14 Group, R8C/15 Group 16. A/D Converter
Rev.2.10 Jan 19, 2006 Page 171 of 253
REJ09B0164-0210
Figure 16.3 ADCON2 and AD Registers
A/D Control Register 2
(1)
Symbol Address After Reset
ADCON2 00D4h 00h
Bit Symbol Bit Name Function RW
NOTES :
1.
b0
000
b3 b2 b1
Reserved Bit Set to “0”
b7 b6 b5 b4
0 : Without sample and hold
1 : With sample and hold
RW
If the ADCON2 register is rew ritten during A/D conversion, the conversion result is indeterminate.
SMP
A/D Conversion Method Select Bit
Nothing is assigned. When write, set to “0”.
When read, its content is “0”.
—
(b7-b4)
—
—
(b3-b1)
RW
/D Registe
Symbol Address After Reset
AD
00C1h-00C0h Indeterminate
Function
RO
RW
When BITS bit in ADCON1 register is set to “1”
(10-bit mode).
When BITS bit in ADCON1 register is set to “0”
(8-bit mode).
8 low-order bits in A/D conversion result A/D conversion result
RO
Nothing is assigned. When write, set to “0”.
When read, its content is “0”.
—
2 high-order bits in A/D conversion result When read, its content is indeterminate.
b0b7
(b8)
b0
(b15)
b7
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