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Philips Semiconductors
CLOCKS
.
High freq.
XTAL1
Med freq.
XTAL2
Low freq.
RC Oscillator
(7.3728MHz)
Watchdog
Oscillator
(400KHz)
2003 Dec 8
FOSC2:0
OSC
CLK
Oscillator
Clock
Figure 2-3: Block Diagram of Oscillator Control - P89LPC901
CPU
CCLK
Clock
DIVM
/2
PCLK
Timer 0 & 1
30
User's Manual - Preliminary -
P89LPC901/902/903
RTCS1:0
RTC
CPU
WDT
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