System Clock Control Register - Samsung KS86C6004 Manual

CONTROL REGISTERS
CLKCON

— System Clock Control Register

Bit Identifier
RESET Value
Read/Write
.7
.6 and .5
.4 and .3
.2–.0
NOTES:
1. After a reset, the slowest clock (divided by 16) is selected as the system clock. To select faster clock speeds, load the
appropriate values to CLKCON.3 and CLKCON.4.
2. f
means oscillator frequency.
OSC
4-6
KS86C6004/C6008/P6008 MICROCONTROLLER (Preliminary Spec)
.7 .6
0 0
R/W R/W
Oscillator IRQ Wake-up Function Bit
0 Enable IRQ for main system oscillator wake-up in power down mode
1 Disable IRQ for main system oscillator wake-up in power down mode
Not used for KS86C6004/C6008/P6008
CPU Clock (System Clock) Selection Bits
0 0 Divide by 16 (f
0 1 Divide by 8 (f
1 0 Divide by 2 (f
1 1
Non-divided clock (f
Not used for KS86C6004/C6008/P6008
.5 .4
0 0
R/W R/W R/W
(1)
/16)
OSC
/8)
OSC
/2)
OSC
(2)
)
OSC
D4H
.3 .2 .1
0 0 0
R/W R/W
.0
0
R/W