HD64F2638F20J Datasheet, PDF (1460/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Appendix B Internal I/O Register
H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
ADCSR—A/D Control/Status Register
H'FF98
A/D Converter
Bit
Initial value
Read/Write
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
2
CH2
0
R/W
1
CH1
0
R/W
0
CH0
0
R/W
Channel Select 2 to 0
CH3 CH2 CH1 CH0
0
0
0
0
1
10
1
100
1
10
1
1
0
0
0
1
10
1
100
1
10
1
Single Mode
(SCAN = 0)
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
AN8
AN9
AN10
AN11
Setting prohibited
Setting prohibited
Setting prohibited
Setting prohibited
Scan Mode
(SCAN = 1)
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
Setting prohibited
Setting prohibited
Setting prohibited
Setting prohibited
Channel Select 3
0 AN8 to AN11 are group 0 analog input pins
1 AN0 to AN3 are group 0 analog input pins,
AN4 to AN7 are group 1 analog input pins
Scan Mode
0 Single mode
1 Scan mode
A/D Start
0 A/D conversion stopped
1 • Single mode: A/D conversion is started. Cleared to 0 automatically
when conversion on the specified channel ends
• Scan mode: A/D conversion is started. Conversion continues
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
A/D Interrupt Enable
0 A/D conversion end interrupt (ADI) request disabled
1 A/D conversion end interrupt (ADI) request enabled
A/D End Flag
0 [Clearing conditions]
• 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
1 [Setting conditions]
• Single mode: When A/D conversion ends
• Scan mode: When A/D conversion ends on all specified channels
Note: * Only 0 can be written, to clear the flag.
Page 1410 of 1458
REJ09B0103-0800 Rev. 8.00
May 28, 2010