
Semtech 2006
www.semtech.com
7-1
XE8802 Sensing Machine Data Acquisition MCU
with ZoomingADC and LCD driver
7. Clock Generation
7.1
FEATURES ........................................................................................................................................... 7-2
7.2
OVERVIEW ........................................................................................................................................... 7-2
7.3
REGISTER MAP ..................................................................................................................................... 7-2
7.4
INTERRUPTS AND EVENTS MAP............................................................................................................... 7-3
7.5
CLOCK SOURCES.................................................................................................................................. 7-5
7.5.1
RC oscillator Configuration................................................................................................................. 7-5
7.5.2
RC oscillator frequency tuning............................................................................................................ 7-5
7.5.3
RC oscillator specifications ................................................................................................................ 7-6
7.6
XTAL OSCILLATOR................................................................................................................................. 7-7
7.6.1
Xtal configuration ............................................................................................................................... 7-7
7.6.2
Xtal oscillator specifications................................................................................................................ 7-7
7.7
EXTERNAL CLOCK................................................................................................................................. 7-8
7.7.1
External clock configuration ............................................................................................................... 7-8
7.7.2
External clock specification ................................................................................................................ 7-8
7.8
CLOCK SOURCE SELECTION................................................................................................................... 7-8
7.9
PRESCALERS ....................................................................................................................................... 7-9
7.10
32 KHZ FREQUENCY SELECTOR ........................................................................................................... 7-10
Not
Recommended
for
New
Designs