ATmega64A MCU Source Code Extraction

ATmega64A MCU Source Code Extraction

The Idle mode stops the CPU while allowing the SRAM, Timer/Counters, SPI port, and interrupt system to continue functioning. The Power down mode saves the register contents but freezes the Oscillator when execute ATmega64A MCU Source Code Extraction, disabling all other chip functions until the next interrupt or Hardware Reset.

In Power-save mode, the asynchronous timer continues to run, allowing the user to maintain a timer base while the rest of the device is sleeping. The ADC Noise Reduction mode stops the CPU and all I/O modules except asynchronous timer and ADC, to minimize switching noise during ADC conversions. In Standby mode, the crystal/resonator Oscillator is running while the rest of the device is sleeping. This allows very fast start-up combined with low power consumption. In Extended Standby mode, both the main Oscillator and the asynchronous timer continue to run.

Software in the Boot Flash section will continue to run while the Application Flash section is updated, providing true Read-While-Write operation. By combining an 8-bit RISC CPU with In-System Self-Programmable Flash on a monolithic chip, the Atmel ATmega64 is a powerful microcontroller that provides a highly-flexible and cost-effective solution to many embedded control applications.

The ATmega64 AVR is supported with a full suite of program and system development tools including: C compilers, macro assemblers, program debugger/simulators, In-Circuit Emulators, and evaluation kits. The ATmega64 is a highly complex microcontroller where the number of I/O locations supersedes the 64 I/O location reserved in the AVR instruction set.

To ensure backward compatibility with the ATmega103, all I/O locations present in ATmega103 have the same location in ATmega64. Most additional I/O locations are added in an Extended I/O space starting from 0x60 to 0xFF (i.e., in the ATmega103 internal RAM space).