h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 610

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 19 A/D Converter
19.2.2
ADCSR is an 8-bit readable/writable register that controls A/D conversion operations.
ADCSR is initialized to H'00 by a reset, and in standby mode, watch mode, subactive mode,
subsleep mode, and module stop mode.
Bit 7—A/D End Flag (ADF): Status flag that indicates the end of A/D conversion.
Bit 7
ADF
0
1
Bit 6—A/D Interrupt Enable (ADIE): Selects enabling or disabling of interrupt (ADI) requests
at the end of A/D conversion.
Bit 6
ADIE
0
1
Rev. 4.00 Jun 06, 2006 page 556 of 1004
REJ09B0301-0400
Bit
Initial value
Read/Write
Note: * Only 0 can be written in bit 7, to clear the flag.
A/D Control/Status Register (ADCSR)
Description
[Clearing conditions]
[Setting conditions]
Description
A/D conversion end interrupt (ADI) request is disabled
A/D conversion end interrupt (ADI) request is enabled
When 0 is written in the 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:
R/(W) *
ADF
7
0
ADIE
R/W
When A/D conversion ends on all specified channels
6
0
ADST
R/W
5
0
SCAN
R/W
4
0
CKS
R/W
3
0
CH2
R/W
2
0
CH1
R/W
1
0
(Initial value)
(Initial value)
CH0
R/W
0
0