Datasheet

Section 16 A/D Converter
Rev. 3.00 Sep. 14, 2006 Page 277 of 408
REJ09B0105-0300
Bit Bit Name
Initial
Value R/W Description
4 SCAN 0 R/W Scan Mode
Selects single mode or scan mode as the A/D conversion
operating mode.
0: Single mode
1: Scan mode
3 CKS 0 R/W Clock Select
Selects the A/D conversions time
0: Conversion time = 134 states (max.)
1: Conversion time = 70 states (max.)
Clear the ADST bit to 0 before switching the conversion
time.
2
1
0
CH2
CH1
CH0
0
0
0
R/W
R/W
R/W
Channel Select 0 to 2
Select analog input channels.
When SCAN = 0 When SCAN = 1
000: AN0 000: AN0
001: AN1 001: AN0 to AN1
010: AN2 010: AN0 to AN2
011: AN3 011: AN0 to AN3
Note: When executing the A/D conversion through AN3
or AN2, do not set the VDDII bit in LVDCR to 0. If 0
is set, the A/D conversion accuracy is not
guaranteed.