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Atmel ARM-based processors
Atmel ARM-based processors are microcontrollers and microprocessors integrated circuits, by Microchip Technology (previously Atmel), that are based on various 32-bit ARM processor cores, with in-house designed peripherals and tool support.
ARM licenses the core design for a series of 32-bit processors. ARM does not manufacture any complete silicon products, just intellectual property (IP). The ARM processors are RISC (reduced instruction set computing). This is similar to Microchip's AVR 8-bit products, a later adoption of RISC architecture. Whereas the AVR architecture used Harvard architecture exclusively, some ARM cores are Harvard (Cortex-M3) and others are Von Neumann architecture (ARM7TDMI).
Semiconductor companies such as Microchip take the ARM cores, which use a consistent set of instructions and register naming, and add peripheral circuits such as ADCs (analog to digital converters), clock management, and serial communications such as USART, SPI, I2C, CAN, LIN, USB, Ethernet, and LCD, Camera or Touch controllers. Microchip made efforts to adapt advanced peripherals and power management that used very little power and can operate independently without having the CPU core powered up (sleepwalking). They also provided for DMA between external interfaces and memories increasing data throughput with minimal processor intervention.
Microchip sells both MCUs (microcontroller units) that have internal Flash memory, and MPUs (microprocessor units) that use external memory. In addition to the chips themselves, Microchip offers demo boards, both on its website, and through distribution channels such as Digi-key, Farnell, Ineltek, Arrow, Avnet, Future Electronics, and Mouser.
Some of the Microchip ARM-based products are meant for specific applications, such as their SAM4CP that is used in smart-grid energy meters.
Microcontrollers have internal program memory as well as the conventional internal registers and RAM. Microchip ARM MCUs range from the SAM D10 series with as few as 14 pins, to the 144-pin SAM S70 and SAM E70 products.
The SAM4S, SAM4N, SAM3S, SAM3N, SAM7S (64-pin) families have pin-compatible IC footprints, except for USB device, though they are not voltage level compatible.
The Atmel C family was launched in May 2015. Based on Cortex-M0+, pin and code compatible with the SAM D and SAM L series, with wide operating voltage ranges (2.7–5.5 V), CAN bus, and up to 12 DMA controller channels.
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Atmel ARM-based processors
Atmel ARM-based processors are microcontrollers and microprocessors integrated circuits, by Microchip Technology (previously Atmel), that are based on various 32-bit ARM processor cores, with in-house designed peripherals and tool support.
ARM licenses the core design for a series of 32-bit processors. ARM does not manufacture any complete silicon products, just intellectual property (IP). The ARM processors are RISC (reduced instruction set computing). This is similar to Microchip's AVR 8-bit products, a later adoption of RISC architecture. Whereas the AVR architecture used Harvard architecture exclusively, some ARM cores are Harvard (Cortex-M3) and others are Von Neumann architecture (ARM7TDMI).
Semiconductor companies such as Microchip take the ARM cores, which use a consistent set of instructions and register naming, and add peripheral circuits such as ADCs (analog to digital converters), clock management, and serial communications such as USART, SPI, I2C, CAN, LIN, USB, Ethernet, and LCD, Camera or Touch controllers. Microchip made efforts to adapt advanced peripherals and power management that used very little power and can operate independently without having the CPU core powered up (sleepwalking). They also provided for DMA between external interfaces and memories increasing data throughput with minimal processor intervention.
Microchip sells both MCUs (microcontroller units) that have internal Flash memory, and MPUs (microprocessor units) that use external memory. In addition to the chips themselves, Microchip offers demo boards, both on its website, and through distribution channels such as Digi-key, Farnell, Ineltek, Arrow, Avnet, Future Electronics, and Mouser.
Some of the Microchip ARM-based products are meant for specific applications, such as their SAM4CP that is used in smart-grid energy meters.
Microcontrollers have internal program memory as well as the conventional internal registers and RAM. Microchip ARM MCUs range from the SAM D10 series with as few as 14 pins, to the 144-pin SAM S70 and SAM E70 products.
The SAM4S, SAM4N, SAM3S, SAM3N, SAM7S (64-pin) families have pin-compatible IC footprints, except for USB device, though they are not voltage level compatible.
The Atmel C family was launched in May 2015. Based on Cortex-M0+, pin and code compatible with the SAM D and SAM L series, with wide operating voltage ranges (2.7–5.5 V), CAN bus, and up to 12 DMA controller channels.