HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 823

• Manufacturer Part Number: HD6433044
• Description: (HD64 Series) Hitachi Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

ADCSR—A/D Control/Status Register
A/D end flag
Bit
Initial value
Read/Write
Note:
0 [Clearing condition]
1 [Setting conditions]
A/D interrupt enable
Read ADF while ADF = 1, then write 0 in ADF
Single mode:
Scan mode:
0 A/D end interrupt request is disabled
1 A/D end interrupt request is enabled
*
A/D start
0 A/D conversion is stopped
1 Single mode:
Only 0 can be written, to clear flag.
Scan mode
Scan mode:
0 Single mode
1 Scan mode
Clock select
0 Conversion time = 266 states (maximum)
1 Conversion time = 134 states (maximum)
R/(W)
A/D conversion ends
A/D conversion ends in all selected channels
ADF
7
0
*
A/D conversion starts; ADST is automatically cleared to 0 when
conversion ends
A/D conversion starts and continues, cycling among the selected
channels, until ADST is cleared to 0 by software, by a reset, or by a
transition to standby mode
ADIE
R/W
6
0
ADST
R/W
Channel select 2 to 0
Selection
5
0
Group
CH2
0
1
816
SCAN
R/W
4
0
CH1
Selection
0
1
0
1
Channel
CKS
R/W
CH0
3
0
0
1
0
1
0
1
0
1
H'E8
Single Mode
AN
AN
AN
AN
AN
AN
AN
AN
CH2
R/W
2
0
0
1
2
3
4
5
6
7
Description
CH1
R/W
1
0
Scan Mode
AN
AN , AN
AN to AN
AN to AN
AN
AN , AN
AN to AN
AN to AN
0
0
0
0
4
4
4
4
CH0
R/W
0
0
1
5
A/D
2
3
6
7