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What are the functions of the ATmega128 controller?
ATmega128 can perform a number of functions on a single chip. Large memory space with more number of pins interface put this device ahead of other controllers available in the AVR community.Following are the major functions associated to this tiny module. Atmega128 comes with four timers i.e. two 8-bit and two 16-bit timers.
How many registers are there in Atmel ATmega128?
ATmega128 The Atmel®AVR®core combines a rich instruction set with 32 general purpose working regis- ters. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle.
How does noise reduction mode work in ATmega128?
The ADC Noise Reduction mode plays a vital role in minimizing the switching noise and freezes entire module except asynchronous ADC and Timers. In the Power-save mode, the entire device is sleeping except asynchronous timer which continues to run.
What kind of memory is used in atmeag128?
Two memory types are mainly used in ATmeag128 named as Program Memory (Flash Memory) and SRAM memory where former makes use of a single pipelining for the execution of the instructions and later is a volatile memory mainly depends on the power supply source.
What are the pins associated with ATmega128 UART?
Each UART has Receiver and Transmitter pins which are name as RXD0 and TXD0 for USART0 and similarly RXD1 and TXD1 for USART1. Atmega128 has multiplexed pins so we configure these if we want to use UART’s. Below table shows the multiplexed pins related to UART. The below table shown registers are associated with Atmega128 UART.
Is the DAC update rate governed by sync /?
SPI isn’t a ‘normal’ interface for ADCs/DACs. It’s usually I2S, or something else with a monotonic frame clock so frequency response is guaranteed. Regardless, the DAC update rate is governed by SYNC/. The DAC will update 16 cycles after SYNC/ goes low.
What is the pinout figure for Atmel ATmega128?
Pinout ATmega128 Note: The Pinout figure applies to both TQFP and MLF packages. The bottom pad under the QFN/MLF package should be soldered to ground. OverviewThe Atmel®AVR®ATmega128 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture.