Newsletter 9/2005: A Star was born !
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Download MSC-Newsletter: Newsletter 9/2005: A Star was born ! [PDF 440KB] |
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| A Star was born! CAN, USB, Ethernet and Encryption on new single-chip SAM7X ARM7 MCUs | ||
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Atmel’s SAM7X ARM7 MCUs combine Ethernet, CAN, USB, Encryption with support For Real-time Apps. Learn all about SAM MCUs in our “Do you know SAM ?” - Seminars October till November 2005! |
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A prodigy of interfaces.. ATMEL announces industry’s first two ARM7-based, flash MCUs with embedded 10/100 Ethernet MAC, CAN, full-speed (12 Mbps) USB 2.0 and a high speed AES/3DES encryption engine. Designed for extensively networked, real-time embedded systems, the AT91SAM7X128 and AT91SAM7X256 also have a 10-bit ADC, two SPIs, SSC, TWI, three UARTs, an 8-level priority interrupt controller, and a full complement of supervisory functions. The two new 50 MIPS MCUs have 32- or 64 Kb of SRAM and 128- or 256 Kb of 25 ns flash memory that supports deterministic processing as required for real-time control systems. Peripheral DMA Controller Ensures 4+ Mbps Data Transfer and 80 Mbps Streaming Encryption A peripheral DMA controller (PDC) connects each SAM7X peripheral directly to on-chip memory, allowing high throughput data transfers without any processor overhead. Conventional ARM processors, which require the CPU to transfer the data one byte at a time, exhaust 55% of their processing resources at just 2 megabits per second (Mbps) and 100% of it at 4 Mbps. Higher data rates are not possible. In contrast, the SAM7X expends just 2% of its cycles at 4 Mbps and only 4% of its cycles at 10 Mbps. By allowing data streams to be encrypted/decrypted in hardware and assisted by DMA, the SAM7X offers 80 Mbps AES encryption throughput, which is 20x faster than a software implementation. Considering that the data rate for full speed USB 2.0 is 12 Mbps, the CAN data rate is 1 Mbps, Ethernet at 100 Mbps and SAM7 SPI and USART peripherals can run at 25Mbps, it becomes quite clear that DMA and hardware encryption are mandatory for high throughput secure data transfers. |
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10/100-Mbps IEEE 802.3-compliant Ethernet (MAC) with dedicated DMA ensures 100 Mbps throughput. Configurable in full- or half-duplex modes, the SAM7X EMAC has programmable interpacket gap, support for virtual-LAN tagged frames and automatic-pause frame generation and termination. A dual mode interface offers seamless Media Independent Interface (MII) for a large selection of PHYs in Fast Ethernet applications, or a Reduced Media Independent Interface (RMII) which uses less I/O. SAM7X MCUs can be interfaced directly with POS-PHY Level 2/SPI-3-compliant devices, including standard network processors. Flash It! SAM7S and SAM7X families have the built in flash tool. Simply connect the device via USB or UART to your PC and flash your application with the free of charge SAM-BA flash tool utility. Never it was so easy to program your software into an ARM microcontroller. Packaging AT91SAM7X128..256-AU will be available in LQFP100 (14x14 mm) Green package. Ask us for datasheets. |
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SAM7X-EK Kit Development board with AT91SAM7X256 (ARM7TDMI, 55MHz, 256K Flash, 64K SRAM, USB, Ethernet, CAN, ADC…)
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SAM-ICE Kit JTAG ICE with USB for all ATMEL’s ARM based AT91 MCU’s
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Join the ARM Party with MSC/ATMEL Seminars in 11 locations ! Atmel was very busy this year and so we now can present a real gateway from 8- or 16-bit MCUs up to the very popular 32-bit ARM RISC technolgy based products. Never it was so easy to develop a high sophisticated single chip ARM7 flash product as it is today. Noch nie war es so einfach einen leistungsfähigen single-chip ARM Flash Mikrokontroller in die eigene Applikation zu designen. And if you are interested in embedded Linux, we can demonstrate the GNU toolchain and a complete edit/compile/link/debug turnaround on an ATMEL ARM9 Linux target. |
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