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Rev. 2.0, 11/00, page 976 of 1037
H'D135: A/D Control/Status Register ADCSR: A/D Converter
0
0
1
0
R
2
0
R
3
0
4
0
R/W
5
0
6
7
R//(W)
*
R
R/W
ADIE
0
R/(W)
*
SEND
SST
HST
BUSY
SCNL
HEND
1
A/D interrupt enable bit
0 Interrupt (ADI) upon A/D conversion end is disabled
1 Interrupt (ADI) upon A/D conversion end is enabled
Software A/D start flag
0 Read: Indicates that software-triggered A/D conversion
has ended or been stopped
Write: Software-triggered A/D conversion is aborted
1 Read: Indicates that software-triggered A/D conversion
is in progress
Write: Starts software-triggered A/D conversion
Busy flag
0 No contention for A/D conversion
1 Indicates an attempt to execute software-triggerd
A/D conversion was canceled by the start of hardware-
triggered A/D conversion.
Software-triggered A/D conversion cancel flag
0 No contention for A/D conversion
1 Indicates that software-triggered A/D
conversion was canceled by the start of
hardware-triggered A/D conversion.
Hardware A/D status flag
0 Read: Hardware- or external -triggered A/D conversion is
not in progress
Write: Hardware- or external-triggered A/D conversion is
aborted
1 Hardware- or external-triggered A/D conversion has
ended or been stopped
Software A/D end flag
0 [Clearing conditions]
When 0 is written after reading 1
1 [Setting conditions]
When software-triggered A/D conversion has ended
Hardware A/D end flag
0 [Clearing conditions]
When 0 is written after reading 1
1 [Setting conditions]
When hardware- or external-triggered A/D
conversion has ended
Bit :
Initial value :
R/W :
—
—
Note:
*
Only 0 can be written to clear the flag.
Содержание Hitachi H8S/2191
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