HD6432621 Hitachi, HD6432621 Datasheet - Page 1024
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HD6432621
Manufacturer Part Number
HD6432621
Description
(HD64F262x Series) 16-Bit Microcomputer
Manufacturer
Hitachi
Datasheet
1.HD6432621.pdf
(1069 pages)
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ADCSR—A/D Control/Status Register
980
Note: * Can only be written with 0 for flag clearing.
Bit
Initial value
Read/Write
:
:
:
R/W*
ADF
A/D end flag
0 [Clearing conditions]
1
7
0
• When 0 is written to ADF after reading ADF = 1
• When the DTC is activated by an ADI interrupt and ADDR is read
[Setting conditions]
• Single mode: When A/D conversion ends
• Scan mode: When A/D conversion ends on all specified channels
ADIE
R/W
A/D interrupt enable
6
0
0 A/D conversion end interrupt (ADI) request disabled
1
A/D conversion end interrupt (ADI) request enabled
A/D start
0 A/D conversion stopped
1
• Single mode: A/D conversion is started. Cleared to 0 automatically when
• Scan mode: A/D conversion is started. Conversion continues consecutively
ADST
R/W
conversion on the specified channel ends
on the selected channels until ADST is cleared to 0 by software, a reset,
or a transition to standby mode or module stop mode
5
0
Scan mode
0 Single mode
1
Scan mode
Channel select
SCAN
0 AN8 to AN11 are group 0 analog input pins, AN12 to AN15
1
R/W
4
0
are group 1 analog input pins
AN0 to AN3 are group 0 analog input pins, AN4 to AN7
are group 1 analog input pins
Channel select
CH3
0
1
H'FF98
CH2 CH1 CH0
0
1
0
1
CH3
R/W
3
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
AN0 (Initial value)
AN1
AN2
AN3
AN4
AN5
AN6
AN7
AN8
AN9
AN10
AN11
AN12
AN13
AN14
AN15
CH2
R/W
Single Mode
(SCAN = 0)
2
0
CH1
R/W
1
0
A/D Converter
AN0
AN0, AN1
AN0 to AN2
AN0 to AN3
AN4
AN4, AN5
AN4 to AN6
AN4 to AN7
AN8
AN8, AN9
AN8 to AN10
AN8 to AN11
AN12
AN12, AN13
AN12 to AN14
AN12 to AN15
Scan Mode
(SCAN = 1)
CH0
R/W
0
0
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