RL78/G24 Fast Prototyping Board

AI-generated Summary: The RL78/G23 hardware design guide details essential hardware design considerations including typical circuit schematics, power supply circuits, oscillator circuits, I/O port recommendations, A/D converter notes, and on-chip debug circuits. It emphasizes proper component selection and placement, such as bypass capacitors with good frequency characteristics, and wiring patterns for power supply pins to ensure stable operation. The guide also covers power supply timing requirements, reset pin usage, and external component recommendations to optimize device performance and reliability. It includes a minimum external components list and cautions on unused pin connections and package-specific soldering instructions.

AI-generated Summary: The RL78/G24 A/D converter operates in advanced mode disabled, supporting software and hardware trigger no-wait modes for analog-to-digital conversion. It alternately converts internal reference voltage and analog input signals, storing results in internal RAM with 12-bit resolution. The converter uses AVREFP and AVREFM as reference voltages, supports one-shot select mode, and enables A/D conversion end interrupts. Detailed usage examples include software trigger no-wait mode with internal reference voltage and hardware trigger no-wait scan mode. The document provides hardware configurations, software settings, flowcharts, and sample code to implement these functions effectively.

AI-generated Summary: The document explains how to output three PWM waveforms with 100 µs periods using the RL78/G24 timer RD2 in timer mode. It details the configuration of timer registers and pins to generate PWM signals with duty cycles of 75%, 50%, and 25% on TRDIOB0, TRDIOC0, and TRDIOD0 pins respectively. The PWM period and waveform timing are calculated based on a 96 MHz clock source. The document also describes the interrupt handling and register operations involved in PWM output generation.

AI-generated Summary: The Timer RG2 in Phase Counting Mode detects phase differences between external signals on TRGCLKA and TRGCLKB pins, counting up or down accordingly. A valid edge on the TRGIDZ pin clears the TRG counter and triggers an interrupt that toggles the P30 port pin. The TRG counter starts at 0000H, counts based on specified conditions, and clears on a rising edge detected at TRGIDZ. This setup enables precise phase difference measurement and port control through interrupt-driven toggling.