TMP92CF30
2009-06-12
92CF30-511
3.21 Melody / Alarm generator (MLD)
The TMP92CF30 contains a melody function and alarm function, both of which are output
from the MLDALM pin. Five kind of fixed cycle interrupt are generated by using a 15bit counter
for use as the alarm generator.
The features are as follows.
1)
Melody generator
The Melody function generates signals of any frequency (4Hz- 5461Hz) based on a
low-speed clock (32.768 kHz) and outputs the signals from the MLDALM pin.
The melody tone can easily be heard by connecting an external loud speaker.
2)
Alarm generator
The Alarm function generates eight kinds of alarm waveform having a modulation
frequency (4096Hz) determined by the low-speed clock (32.768 kHz). This waveform can be
inverted by setting a value to a register.
The alarm tone can easily be heard by connecting an external loud speaker.
Five kinds of fixed cycle interrupts are generated (1Hz, 2Hz, 64Hz, 512Hz, 8192Hz) by
using a counter that is used for the alarm generator.
Содержание TLCS-900/H1 Series
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