Operation Manual

www.ti.com Functional Description of the eZ430-Chronos Watch
4.2 Functional Description of the eZ430-Chronos Watch
The core technology behind the eZ430-Chronos watch is the CC430F6137 microcontroller with its
integrated <1-GHz radio. The CC430 also controls the LCD and its temperature sensor is used for
temperature measurement. The only other ICs on the watch PCB are pressure and acceleration sensors
and the LCD backlight driver.
Figure 4-7. eZ430-Chronos Watch Block Diagram
The PCB does not include an antenna; the metal frame of the watch module that surrounds the LCD is
used as antenna. The antenna is tuned for best performance when the watch is worn or held in hands.
Figure 4-8. eZ430-Chronos Watch Module Front
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SLAU292D–November 2009–Revised March 2011 eZ430-Chronos Hardware
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