AT91CAP

Article summary

AT91CAP (AT91CAP Customizable Atmel Microcontrollers) is a family of Atmel microcontrollers based on the 32-bit RISC microprocessors from ARM (Atmel was bought by Microchip Technology in 2016 ). They include a block of metal-programmable logic gates (MP Block) that can be personalized by the application developer. The MP Block can contain one or more additional processor cores, additional peripherals or interfaces, or application-specific logic such as a GPS correlator. CAP products feature embedded SRAM and ROM memories and an external bus for additional memories including flash memory, together with a number of peripherals and standard communications and networking interfaces. This qualifies them as system-on-a-chip devices. External interfaces include USB, CAN, Ethernet, SPI, USART and ADC. A DMA controller provides direct communication channels between external interfaces and memories, increasing data throughput with minimal processor intervention. Peripherals include counter/timers, power-on reset generators, voltage regulators and advanced interrupt controller. This enhances the real time performance of the processor. A power management controller keeps power consumption to a minimum by powering down unused peripherals and interfaces, and enabling the processor to be put in standby mode. The AT91CAP comes in both ARM7 and ARM9 versions.…

Key claims

No claims recorded.

Discussion questions

1. Summarise the article in your own words. Which single claim would you verify first, and why?
2. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
3. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

Bibliography

No sources recorded.