HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 744

• Manufacturer Part Number: HD6412240
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Appendix B Register Field
ADCSR—A/D Control/Status Register
Rev.3.00 Mar. 26, 2007 Page 702 of 772
REJ09B0355-0300
Bit
Initial value
Read/Write
Notes: 1. Can only be written with 0 for flag clearing.
A/D End Flag
2. DTC can clear this bit only when DISEL is 0 with the transfer counter not being 0.
:
:
:
0
1
R/(W) *
ADF
[Clearing conditions]
• When 0 is written to the ADF flag after reading ADF = 1
• When the DTC
[Setting conditions]
• Single mode: When A/D conversion ends
• Scan mode: When one round of conversion has been performed on all specified channels
7
0
A/D Interrupt Enable
1
0
1
ADIE
R/W
A/D conversion end interrupt (ADI) request disabled
A/D conversion end interrupt (ADI) request enabled
6
0
A/D Start
*
0
1
2
is activated by an ADI interrupt, and ADDR is read
ADST
• Single mode: A/D conversion is started. Cleared to 0 automatically when
• Scan mode: A/D conversion is started. Conversion continues sequentially
R/W
A/D conversion stopped
conversion ends
on the selected channels until ADST is cleared to 0 by software, a reset,
or transition to standby mode or module stop mode
5
0
Scan Mode
0
1
SCAN
R/W
Single mode
Scan mode
4
0
Group Select
0
1
CKS
R/W
Conversion time= 266 states (max.)
Conversion time= 134 states (max.)
3
0
H'FF98
Channel Select
CH1 CH0
0
1
R/W
—
2
0
0
1
0
1
Single Mode
(SCAN = 0)
AN0
AN1
AN2
AN3
CH1
R/W
1
0
Scan Mode
(SCAN = 1)
AN0
AN0 to AN1
AN0 to AN2
AN0 to AN3
CH0
R/W
0
0
A/D Converter