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The 7542T, 7542V Group is supported only for customers who have already adopted these products.
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- Product Change Notice
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- Application NoteAI-generated Summary: The document explains the operation of three-phase motor control timers in sawtooth wave modulation mode for M32C/84, 85, 87, 88, 8A, and 8B groups. It details how the IDBO and IDB1 registers determine individual phase output signal levels, with signals output at specific timer edges. Dead time between switching signals is configurable via the DTT register and controlled by the INV14 bit in the INVC1 register. Examples of default PWM register values and signal timing diagrams illustrate the modulation and output process.Related Files:
- Application NoteAI-generated Summary: The document demonstrates the use of the H8S/38076 microcontroller's real-time clock (RTC) and LCD peripherals across seven power modes. It includes system and peripheral overviews, detailed register descriptions for RTC and LCD controllers, and software functions for initialization, power mode setting, and LCD updating. The document also covers interrupt service routines, current consumption measurement techniques, memory allocation, and code structure.Related Files:
- Application NotePDF 188 KB REJ05B1080-0100 Rev.1.00 Mar 26, 2007AI-generated Summary: The document explains the operation of Timer A and Timer B on the 7542 Group MCU using the Output Compare Function in Compare 0 and 1 Modulation Mode. It details generating PWM signals with specific pulse widths and periods, such as a 5 µs high pulse with a 20 µs period and a 1 ms pulse with a 2 ms period. The timer count sources and division ratios are set based on an 8 MHz oscillator, with examples illustrating register settings, output waveforms, and control procedures for precise timer operation.Related Files:
- Application NotePDF 192 KB REJ05B0524-0300 Rev.3.00 Feb 20, 2007AI-generated Summary: The document details the register configurations for the 7542 Group MCU, including control registers and port registers (P0, P1, P2, P3). It explains bit functions, read/write permissions, and reset states. Port direction registers define input/output modes with notes on pull-up resistor behavior and unavailable functions in the 32-pin version. Specific addresses and bit assignments for ports and directions are provided, along with usage notes for shared functions.
- Technical Update
- Application NoteAI-generated Summary: Ensure safety in circuit designs by considering potential semiconductor failures that may cause injury, fire, or damage. Use auxiliary circuits, non-flammable materials, and malfunction prevention. Product information may change without notice, and Renesas disclaims liability for damages from inaccuracies. Semiconductors are not for life-critical systems without prior approval. The document explains C language programming basics, project setup, compiler, assembler, linker, debugger, coding tips, stack estimation, and interrupt handling for the Renesas 740 family microcomputers.
- Application NoteAI-generated Summary: The document explains the input capture feature for the 7542 Group MCU, detailing the step-by-step configuration process. It covers disabling interrupts, stopping timer A, setting timer count sources and values, selecting timer sources for capture, configuring capture modes and noise filters, selecting input ports, setting port directions, managing interrupt requests, enabling interrupts, and starting timer A. The procedures apply similarly to input capture 1 as well.Related Files:
- Application NoteAI-generated Summary: This document explains how to design PCB layouts to enhance noise immunity for the 740 family MCU, using the M37544G2ASP sample at 4 MHz on a single-sided board. It compares recommended and non-recommended layouts, highlighting five key design points: short oscillator wiring, close reset circuit placement, short CNVSS wiring with a resistor, decoupling capacitor placement near MCU, and unified VSS wiring. These principles reduce noise-induced failures and improve MCU stability.
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- Application NoteAI-generated Summary: The document explains the operation of three-phase motor control timers in sawtooth wave modulation mode for M32C/84, 85, 87, 88, 8A, and 8B groups. It details how the IDBO and IDB1 registers determine individual phase output signal levels, with signals output at specific timer edges. Dead time between switching signals is configurable via the DTT register and controlled by the INV14 bit in the INVC1 register. Examples of default PWM register values and signal timing diagrams illustrate the modulation and output process.Related Files:
- Application NoteAI-generated Summary: The document demonstrates the use of the H8S/38076 microcontroller's real-time clock (RTC) and LCD peripherals across seven power modes. It includes system and peripheral overviews, detailed register descriptions for RTC and LCD controllers, and software functions for initialization, power mode setting, and LCD updating. The document also covers interrupt service routines, current consumption measurement techniques, memory allocation, and code structure.Related Files:
- Application NotePDF 188 KB REJ05B1080-0100 Rev.1.00 Mar 26, 2007AI-generated Summary: The document explains the operation of Timer A and Timer B on the 7542 Group MCU using the Output Compare Function in Compare 0 and 1 Modulation Mode. It details generating PWM signals with specific pulse widths and periods, such as a 5 µs high pulse with a 20 µs period and a 1 ms pulse with a 2 ms period. The timer count sources and division ratios are set based on an 8 MHz oscillator, with examples illustrating register settings, output waveforms, and control procedures for precise timer operation.Related Files:
- Application NotePDF 192 KB REJ05B0524-0300 Rev.3.00 Feb 20, 2007AI-generated Summary: The document details the register configurations for the 7542 Group MCU, including control registers and port registers (P0, P1, P2, P3). It explains bit functions, read/write permissions, and reset states. Port direction registers define input/output modes with notes on pull-up resistor behavior and unavailable functions in the 32-pin version. Specific addresses and bit assignments for ports and directions are provided, along with usage notes for shared functions.
- Application NoteAI-generated Summary: Ensure safety in circuit designs by considering potential semiconductor failures that may cause injury, fire, or damage. Use auxiliary circuits, non-flammable materials, and malfunction prevention. Product information may change without notice, and Renesas disclaims liability for damages from inaccuracies. Semiconductors are not for life-critical systems without prior approval. The document explains C language programming basics, project setup, compiler, assembler, linker, debugger, coding tips, stack estimation, and interrupt handling for the Renesas 740 family microcomputers.View More (25)
Application Notes & White Papers (25)
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Product Notices (PCN, EOL, etc) (3)
- Technical Update
- Technical UpdatePDF 18 KB TN-M740-22-0012 Dec 01, 2000
Errata & Technical Updates (4)
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- IDE and Coding ToolRenesas integrated development environment (IDE) (for SuperH, RX, R8C, M32R, M16C, H8SX, H8S, H8, and 740 families).
- Compiler/AssemblerAssembler Package for 740 Family, * Comes with High-performance Embedded Workshop and the simulator debugger.
- Compiler/AssemblerC Compiler Package for 740 Family. High-performance Embedded Workshop and Simulator debugger included.
- Software & Tools - Other
- SimulatorSimulator Debugger for 740 Family [Support IDE : High-performance Embedded Workshop] (Note: This product is included in Compiler Package and Assembler Package, and is not available separately.)
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- IDE and Coding ToolRenesas integrated development environment (IDE) (for SuperH, RX, R8C, M32R, M16C, H8SX, H8S, H8, and 740 families).
- Compiler/AssemblerAssembler Package for 740 Family, * Comes with High-performance Embedded Workshop and the simulator debugger.
- Compiler/AssemblerC Compiler Package for 740 Family. High-performance Embedded Workshop and Simulator debugger included.
- Software & Tools - Other
- SimulatorSimulator Debugger for 740 Family [Support IDE : High-performance Embedded Workshop] (Note: This product is included in Compiler Package and Assembler Package, and is not available separately.)
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