Datasheet

Rev. 3.00, 03/04, page 600 of 830
Bit Bit Name Initial Value R/W Description
Channel Select 2 to 0
Select analog input channels.
2
1
0
CH2
CH1
CH0
All 0 R/W
When SCAN = 0
000: AN0
001: AN1
010: AN2
011: AN3
100: AN4
101: AN5
110: AN6
111: AN7
When SCAN = 1
000: AN0
001: AN0 and AN1
010: AN0 to AN2
011: AN0 to AN3
100: AN4
101: AN4 and AN5
110: AN4 to AN6
111: AN4 to AN7
Note: * Only 0 can be written for clearing the flag.
18.3.3 A/D Control Register (ADCR)
ADCR enables A/D conversion started by an external trigger signal.
Bit Bit Name Initial Value R/W Description
7
6
TRGS1
TRGS0
0
0
R/W
R/W
Timer Trigger Select 1 and 0
Enable the start of A/D conversion by a trigger signal.
Only set bits TRGS1 and TRGS0 while A/D
conversion is stopped (ADST = 0).
00: A/D conversion start by external trigger is disabled
01: A/D conversion start by external trigger is disabled
10: A/D conversion start by conversion trigger from
TMR
11: A/D conversion start by ADTRG pin
5 to
0
 All 1 R/W Reserved
The initial values should not be changed.