Device.h

Purpose: Device identity and peripheral counts.

Namespace: atmega2560::device.

The ATmega2560 chip signature is 1E 98 01.

#include <atmega2560/Device.h>
 
namespace mcu = atmega2560;
 
static_assert(mcu::device::usart_count == 4, "ATmega2560 Device definition");

These are hardware definitions, not runtime register access or initialization.

Source: ATmega2560 datasheet (DS40002211A).