HD643303x Hitachi, HD643303x Datasheet - Page 391

• Manufacturer Part Number: HD643303x
• Description: Hitachi Microcomputer
• Manufacturer: Hitachi

12.2.2 A/D Control/Status Register (ADCSR)
ADCSR is an 8-bit readable/writable register that selects the mode and controls the A/D converter.
ADCSR is initialized to H'00 by a reset and in standby mode.
Bit
Initial value
Read/Write
Note:
*
Only 0 can be written, to clear the flag.
A/D end flag
Indicates end of A/D conversion
R/(W)
ADF
7
0
*
A/D interrupt enable
Enables and disables A/D end interrupts
ADIE
R/W
6
0
A/D start
Starts or stops A/D conversion
ADST
R/W
5
0
Scan mode
Selects single mode or scan mode
376
SCAN
R/W
4
0
Clock select
Selects the A/D conversion time
CKS
R/W
3
0
CH2
R/W
2
0
Channel select 2 to 0
These bits select analog
input channels
CH1
R/W
1
0
CH0
R/W
0
0