Infineon CCU6 PWM Capture 1 Manual page 10

Implementation
Calculation example of the PWM frequency
Background knowledge:
› Maximum value of timer T12 is 65534 (16 bit – 1; default configuration, configured inside
function IfxCcu6_Icu_initModuleConfig())
›
Frequency of timer T12 is 781250 Hz (stored inside variable
g_CCU6captureFrequency_Hz; default configuration), which means that the value of timer
T12 is incremented every 1.28 µs (1 / 781250 Hz)
› Overflow of timer T12 occurs after ≈ 0.084 s (65534 * 1.28 µs)
›
The total amount of increments can be calculated by comparing the current value of timer
T12 with the value of timer T12 one PWM period ago e.g. 1000
T12 count
(value is incremented
with frequency of timer T12)
PWM signal
2020-01-17
Interrupt on each rising edge:
Period of
timer T12 overflow
Period of
PWM signal
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High level
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