ZERO SOM/ZERO Hardware/Peripherals/Timer
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| 2025/06/17 | First release | ||
Peripheral Timer[edit | edit source]
The RZ/T2H SoC in the ZERO SOM has a on-chip multi-function timer (MTU) pulse unit with a total of 9 channels:
- 8 channels x 16 bits
- 1 channel x 32 bits
Description[edit | edit source]
The MTU has:
- 28 pulse-input/output maximum and 3 pulse-input line
- 10, 11, 12, or 14 counter-input clock signals for each channel (with maximum operating frequency of 250 MHz)
- Input capture function and 39 output compare/input capture registers
- Counter clear operation (synchronous clearing by compare match/input capture)
- Simultaneous writing to multiple timer counters (TCNT)
- Simultaneous register input/output by synchronous counter operation
- Pulse output mode: toggle/PWM/complementary PWM/reset-synchronized PWM
- Complementary PWM output mode
- Outputs non-overlapping waveforms for controlling 3-phase inverters
- Automatic specification of dead times
- PWM duty cycle: Selectable as any value from 0% to 100%
- Delay can be applied to requests for A/D conversion
- Non-generation of interrupt requests at peak or trough values of counters can be selected
- Double buffer configuration
- Reset synchronous PWM mode: six phases of positive and negative PWM waveforms can be output with desired duty cycles
- Phase-counting mode: 16-bit mode (channels 1 and 2), 32-bit mode (channels 1 and 2 in cascade connection)
- Counter functionality for dead-time compensation
- Generation of triggers for A/D converter conversion: A/D converter start triggers can be skipped
- Digital noise filter function for signals on the input capture and external counter clock pins
