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Section 15 A/D Converter
15.2.2
A/D Control/Status Register (ADCSR)
Bit
7
ADF
Initial value
0
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.
Rev. 4.00 Jan 26, 2006 page 574 of 938
REJ09B0276-0400
6
5
ADIE
ADST
0
0
R/W
R/W
*
Scan mode
Selects single mode or scan mode
A/D start
Starts or stops A/D conversion
A/D interrupt enable
Enables and disables A/D end interrupts
4
3
SCAN
CKS
CH2
0
0
R/W
R/W
R/W
Clock select
Selects the A/D conversion time
2
1
0
CH1
CH0
0
0
0
R/W
R/W
Channel select 2 to 0
These bits select analog
input channels
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