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15.2.2
A/D Control/Status Register (ADCSR)
Bit
ADF
Initial value
Read/Write
R/(W)
A/D end flag
Indicates end of A/D conversion
Note:
*
Only 0 can be written, to clear the flag.
ADCSR is an 8-bit readable/writable register that selects the mode and controls the A/D converter.
ADCSR is initialized to H'00 by a reset and in standby mode.
520
7
6
5
ADIE
ADST
0
0
0
*
R/W
R/W
A/D start
Starts or stops A/D conversion
A/D interrupt enable
Enables and disables A/D end interrupts
4
3
SCAN
CKS
0
0
R/W
R/W
Clock select
Selects the A/D conversion time
Scan mode
Selects single mode or scan mode
2
1
CH2
CH1
CH0
0
0
R/W
R/W
R/W
Channel select 2 to 0
These bits select analog
input channels
0
0
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