Description
The 3822A Group is supported only for customers who have already adopted these products.
| Part Number | Status | Samples | Stock | Package | Bit Size | Lead Count (#) | Operating Freq (Max) (MHz) | CPU | LVD or PVD | DMA | Timer | ADC | Ethernet |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M38223M4A-XXXFP | Obsolete | N/A | Out of Stock | Package | 8 | 80# | 1MHz | 740 | No | No | 8-bit x 3-ch, 16-bit x 2-ch | 8-bit x 8-ch | No |
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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:
- 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: 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.
- Application NoteAI-generated Summary: The programming guidelines for the 740 Family in C language have been updated and replaced by a new document titled "C Compiler Package for 740 Family M3T-ICC740 Application Notes" (Document No. REJ06J0005-0100). Users should refer to this new document for current information. Inquiries related to the previous guidelines should be sent via email to the provided contact.
- Application NoteAI-generated Summary: This document explains two methods for handling interrupts in the ICC-740 C Compiler for the 740 Family MCU. Method 1 involves modifying the interrupt vector table in the startup file and declaring interrupt functions with the 'interrupt' keyword. Method 2 deletes the interrupt vector table, reserves data space, and declares interrupt functions using the 'interrupt [offset]' syntax. Examples illustrate how to implement INTO interrupt handling in both methods.
- Application NoteAI-generated Summary: This document explains how to write C-Assembly mixed programs for the 1CC740, focusing on interfacing functions between C and assembly. It details rules for passing parameters and return values based on data types, using specific memory areas like accumulators, C_ARGN, and C_ARGZ. It introduces the assembler interface keyword DEFFN for declaring assembly functions callable from C, and provides examples of setting DEFFN and calling assembly subroutines from C. It also covers saving and restoring registers and flags during calls.
- Application NotePDF 176 KB REJ05B0766-0110 Rev.1.10 Dec 15, 2005AI-generated Summary: The document details the differences between the 3822A Group and 3823 Group microcontroller families. Key distinctions include the use of Mask ROM in the 3822A Group versus QzROM in the 3823 Group, with the latter featuring ROM correction, watchdog timer, on-chip oscillator, and peripheral function extension. Both groups share similar package types and supply voltage ranges. The 3823 Group is pin-compatible with the 3822A Group but may have different electrical characteristics. A detailed comparison of Special Function Registers (SFRs) highlights similarities and differences in register names and functions.
- Datasheet3822 Group(A ver.) DATASHEETRECOMMENDED
Recommended Documents (1)
- Datasheet3822 Group(A ver.) DATASHEETRECOMMENDED
Datasheets (1)
Manuals & Guides (2)
- 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 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: 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.
- Application NoteAI-generated Summary: The programming guidelines for the 740 Family in C language have been updated and replaced by a new document titled "C Compiler Package for 740 Family M3T-ICC740 Application Notes" (Document No. REJ06J0005-0100). Users should refer to this new document for current information. Inquiries related to the previous guidelines should be sent via email to the provided contact.View More
Application Notes & White Papers (10)
- Product Change Notice
- Product Change Notice
- Product Change Notice
Product Notices (PCN, EOL, etc) (3)
- Technical Update
- Technical UpdatePDF 18 KB TN-GENE-21-0108 Aug 01, 2001
- Technical UpdatePDF 18 KB TN-M740-22-0012 Dec 01, 2000View More
Errata & Technical Updates (6)
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- DocumentPDF 382 KB REJ99B0029-0100Z Rev.1.00 Sep 08, 2003
- DocumentPDF 376 KB REJ99B0027-0200 Rev.2.00 Sep 08, 2003
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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.
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- 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.
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