Samsung Microcassette Recorder 8-Bit CMOS Microcontroller Benutzerhandbuch
S3C9228/P9228
CONTROL REGISTERS
4-5
ADCON
— A/D Converter Control Register
D0H
Bit Identifier
.7
.6
.5
.4
.3
.2
.1
.0
RESET
RESET Value
–
–
0
0
0
0
0
0
Read/Write
–
–
R/W
R/W
R
R/W
R/W
R/W
.7-.6
Not used for the S3C9228/P9228
.5-.4
A/D Input Pin Selection Bits
0
0
AD0 (P1.0)
0
1
AD1 (P1.1)
1
0
AD2 (P1.2)
1
1
AD3 (P1.3)
.3
End of Conversion Bit (Read-only)
0
Conversion not complete
1
Conversion complete
.2-.1
Clock Source Selection Bits
0
0
fxx/16
0
1
fxx/8
1
0
fxx/4
1
1
fxx
.0
Start or Enable Bit
0
Disable operation
1
Start operation (automatically disable operation after conversion complete)