HD6432646 Hitachi, HD6432646 Datasheet - Page 1098

• Manufacturer Part Number: HD6432646
• Description: (HD64F264x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

ADCSR—A/D Control/Status Register
1064
Bit
Initial value
Read/Write
Note: * Only 0 can be written, to clear the flag.
R/(W)
A/D End Flag
ADF
0 [Clearing conditions]
1 [Setting conditions]
7
0
• When 0 is written in the to ADF flag after reading ADF = 1
• When the DTC is activated by an ADI interrupt and ADDR is read
• Single mode: When A/D conversion ends
• Scan mode: When A/D conversion ends on all specified channels
*
A/D Interrupt Enable
ADIE
R/W
0 A/D conversion end interrupt (ADI) request disabled
1 A/D conversion end interrupt (ADI) request enabled
6
0
A/D Start
0 A/D conversion stopped
1 • Single mode: A/D conversion is started. Cleared to 0 automatically
• Scan mode: A/D conversion is started. Conversion continues
ADST
when conversion on the specified channel ends
sequentially on the selected channels until ADST is cleared to
0 by software, a reset, or a transition to standby mode or module
stop mode
R/W
Scan Mode
5
0
0 Single mode
1 Scan mode
Channel Select 3
0 AN8 to AN11 are group 0 analog input pins
1 AN0 to AN3 are group 0 analog input pins,
SCAN
AN4 to AN7 are group 1 analog input pins
R/W
Channel Select 2 to 0
CH3
4
0
0
1
CH2
0
1
0
CH3
R/W
H'FF98
3
0
CH1
0
1
0
1
0
1
CH0
0
1
0
1
0
1
0
1
0
1
0
1
CH2
R/W
2
0
Single Mode
(SCAN = 0)
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
AN8
AN9
AN10
AN11
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
CH0
R/W
(SCAN = 1)
Scan Mode
0
0