On Sat, Oct 31, 2009 at 10:21 AM, Isaac Marino Bavaresco wrote: > These days I was studying the AVR Xmega MCUs for prospective use in a > new product. When I learned their capabilities I freaked out! > > The facts I found more important: > a) 8-bit MCU approaching 32MIPS @ 32MHz. > b) Internal RAM from 2KB up to 32KB and flash from 16KB up to 384KB. > c) Packages of 44 (34 I/Os), 64 (50 I/Os) and 100 pins (78 I/Os) available. > d) The 100 pins versions have external memory interface, supporting up > to 16MB of SRAM and 128MB of SDRAM!!! > e) 4 DMA channels capable of transferring between any combination of > RAM/port/peripheral and the most amazing: external DMA requests available! > f) Any I/O pin may generate interrupts. > g) Operation from 1.6V up to 3.6V. > h) 5, 7 or 8 USARTS; 5, 7 or 8 16-bit TIMERS; 16, 22 or 24 PWMs; 2, 3 or > 4 SPI; 2 or 4 TWI; 12 or 16 12-bit A/D inputs; 2 or 4 12-bit D/A outputs. > i) Hardware crypto-engine with DES and AES support. > j) As all AVRs, every interrupt has its own vector. > I looked it up because I didn't believe you - but it actually does have an SDRAM controller. That's pretty interesting. I'm not sure how it compares to other high-end micros though. It seems like it's stuck between a microcontroller and a DSP. -- Martin K. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist