AT91SAM9R64-CU

SMART SAM9R ARM®9 MicroprocessorsThe ARM926™-based Atmel® SMART SAM9R embedded microprocessor units MPUs provide high throughput, optional LCD controller and touch and OS support for high-speed USB peripherals.### ARM 微控制器，Atmel

The is a 32-bit Embedded Microprocessor Unit based on the integration of an ARM926EJ-S processor with a large fast SRAM and a wide range of peripherals. The AT91SAM9R64 embeds one USB device high speed controller, one AC97 controller, a 2-channel DMA controller, four USARTs, two SSCs, one SPI, two TWIs, three timer counter channels, a 4-channel PWM generator, one multimedia card interface and a 6-channel Analog-to-digital Converter ADC that also provides resistive touch screen management. The AT91SAM9R64 is architectured on a 6-layer bus matrix. It also features an external bus interface capable of interfacing with a wide range of memory and peripheral devices.

.

Incorporates the ARM926EJ-S ARM Thumb processor

.

DSP instruction extensions

.

ARM Jazelle technology for Java acceleration

.

Memory management unit

.

EmbeddedICE In-circuit emulation, debug communication channel support

.

Multi-layer AHB bus matrix for large bandwidth transfers

.

One 32kB Internal ROM, single-cycle access at maximum speed

.

One 64kB Internal SRAM, single-cycle access at maximum speed

.

External bus interface EBI

.

High speed 480Mbps USB 2.0 Device controller

.

Reset controller RSTC

.

Shutdown controller SHDC

.

Clock generator CKGR

.

Power management controller PMC

.

Advanced interrupt controller AIC

.

Debug unit DBGU

.

Periodic interval timer PIT

.

Watchdog timer WDT

.

Real-time timer RTT

.

Real-time clock RTC