Samsung KS57C2308 Manual page 246

Single-chip cmos microcontroller
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TIMERS and TIMER/COUNTERS
WMOD.7
WMOD.6
WMOD.5
WMOD.4
8
WMOD.3
WMOD.2
WMOD.1
WMOD.0
11-24
Enable/ Disable
fw
Clock
Selector
(32.768 kHz)
fx = Main System Clock (4.19 MHz)
fxt = Subsystem Clock (32.768 kHz)
fxt
fxx/128
fw = Watch Timer Frequency
fxx = System Clock
Figure 11-4. Watch Timer Circuit Diagram
P2.3
MUX
fw/2
(16 kHz)
fw/4
(8 kHz)
fw/8
(4 kHz)
fw/16
(2 kHz)
fw/2
(256 Hz)
Frequency
Dividing
Circuit
KS57C2308/P2308/C2316/P2316
PM2
BUZ
Selector
Circuit
IRQW
7
14
fw/2
(2Hz)
6
fw/2 (512 Hz)
fLCD

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