592
16.2.2
A/D Control/Status Register (ADCSR)
7
ADF
0
R/(W)
*
6
ADIE
0
R/W
5
ADST
0
R/W
4
SCAN
0
R/W
3
CH3
0
R/W
0
CH0
0
R/W
2
CH2
0
R/W
1
CH1
0
R/W
Bit
Initial value
R/W
:
:
:
Note:
*
Only 0 can be written to bit 7, to clear this flag.
ADCSR is an 8-bit readable/writable register that controls A/D conversion operations.
ADCSR is initialized to H'00 by a reset, and in hardware standby mode or module stop mode.
Bit 7—A/D End Flag (ADF): Status flag that indicates the end of A/D conversion.
Bit 7
ADF
Description
0
[Clearing conditions]
(Initial value)
•
When 0 is written to the ADF flag after reading ADF = 1
•
When the DTC is activated by an ADI interrupt and ADDR is read
1
[Setting conditions]
•
Single mode: When A/D conversion ends
•
Scan mode: When A/D conversion ends on all specified channels
Bit 6—A/D Interrupt Enable (ADIE): Selects enabling or disabling of interrupt (ADI) requests
at the end of A/D conversion.
Bit 6
ADIE
Description
0
A/D conversion end interrupt (ADI) request disabled
(Initial value)
1
A/D conversion end interrupt (ADI) request enabled
Содержание H8S/2645
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