ZERO SOM/ZERO Hardware/Peripherals/PWM
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Peripheral PWM[edit | edit source]
The RZ/T2H SoC in the ZERO SOM has a General PWM timer (GPT) subsystem that is a 32-bit timer with 56 channels divided into four groups with a total of 11 units:
- 5 channels × 9 units
- 7 channels × 1 unit
- 4 channels × 1 unit
Description[edit | edit source]
Each channel has:
- Counting up or down (saw-wave), counting up and down (triangle-wave)
- Select from among four counter-input clock signals
- 2 input/output pins
- 2 output compare/input capture registers
- in output compare operation, laterally asymmetric PWM waveforms can be generated
- Generation of dead times in PWM operation
- through combination of 3 counters, generation of automatic 3-phase PWM waveforms incorporating dead times
- Starting, clearing, stopping, switching, up/down counters, and input capture in response to external or internal triggers or input level comparison
- Generation of triggers for A/D converter conversion
- Digital noise filter function for signals on the input capture and external trigger pins
- Prescaler with 9 dividing clocks
- 9 sources interrupts
