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CONTROL REGISTERS S3C8245/P8245/C8249/P8249
4-18
OSCCON — Oscillator Control Register F3H Set 1,Bank 0
Bit Identifier .7 .6 .5 .4 .3 .2 .1 .0
nRESET Value 0 0 0 0 0 0 0 0
Read/Write – – – R/W R/W R/W – R/W
Addressing Mode Register addressing mode only
.7–.5 Not used for the S3C8245/C8249
.4 Sub-system Oscillator Driving Ability Control Bit
0 Strong driving ability
1 Normal driving ability
.3 Main System Oscillator Control Bit
0 Main System Oscillator RUN
1 Main System Oscillator STOP
.2 Sub System Oscillator Control Bit
0 Sub system oscillator RUN
1 Sub system oscillator STOP
.1 Not used for the S3C8245/C8249
.0 System Clock Selection Bit
0 Main oscillator select
1 Subsystem oscillator select
NOTE: When OSCCON.4 is set to "0", Sub operating current and sub idle current are large.