Samsung S3C84I8 User Manual page 90

CONTROL REGISTERS
OSCCON
— Oscillator Control Register
Bit Identifier
RESET Value
Read/Write
Addressing Mode
.7–.4
.3
.2
.1
.0
4-18
.7 .6
0 0
– –
Register addressing mode only
Not used for the S3C84I8/F84I8/C84I9/F84I9 (must keep always 0)
Main System Oscillator Control Bit
0 Main System Oscillator RUN
1 Main System Oscillator STOP
Sub System Oscillator Control Bit
0 Sub system oscillator RUN
1 Sub system oscillator STOP
Not used for the S3C84I8/F84I8/C84I9/F84I9 (must keep always 0)
System Clock Selection Bit
0 Main oscillator select
1 Subsystem oscillator select
.5 .4 .3
0 0 0
– R/W R/W
S3C84I8/F84I8/C84I9/F84I9
F2H Set 1, Bank0
.2 .1
0 0
R/W –
.0
0
R/W