MEC1322 Datasheet, PDF (413/456 Pages) Microchip Technology – Keyboard and Embedded Controller for Notebook PC

38.13 Blinking/Breathing PWM Timing
FIGURE 38-19: BLINKING/BREATHING PWM OUTPUT TIMING
LEDx
t1
t2
t3
MEC1322
TABLE 38-18: BLINKING/BREATHING PWM TIMING PARAMETERS, BLINKING MODE
Name
Description
MIN
TYP
MAX
t1
Period
t_f
Frequency
t2
High Time
t3
Low Time
t_d
Duty cycle
7.8ms
0.03125
0
0
0
32sec
128
16
16
100
Units
Hz
sec
sec
%
TABLE 38-19: BLINKING/BREATHING PWM TIMING PARAMETERS, GENERAL PURPOSE
Name
Description
MIN
TYP
MAX
Units
t1
Period
t_f
Frequency
t2
High Time
t3
Low Time
t_d
Duty cycle
5.3us
45.8Hz
0
0
0
21.8ms
187.5kHz
10.9
ms
10.9
ms
100
%
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DS00001719D-page 413