Atmel Diopsis 940HF Specification Sheet

DIOPSIS 940HF

Atmel brings floating point DSP
platform to consumer market
Atmel's Diopsis 940HF is designed for data-intensive applications requiring the combination of a high
®
performance microcontroller unit and floating point DSP capablities. Its parallel architecture incorporates
a VLIW floating point processor, Magic DSP
ARM926EJ-S ARM Thumb
™ ®
acceleration. A rich set of peripherals and internal memory provide a highly flexible and integrated system
solution. The system-on-chip embeds distributed DMA to support data moves related to the on chip peripherals
and to the processing performed by mAgic. The availability of on-chip memory for Magic and ARM reduces the
data traffic on the external bus and allows an effective usage of the available processing and I/O resources.
System Integration
ARM core with 16+16 KB I&D caches and

48KB on chip SRAM
 Magic DSP with 370 KB on chip SRAM
10/100 Mbps Ethernet MAC

Host & Device USB 2.0 Full Speed

Timers, USARTs, SPIs, TWIs, SSCs,

MCI/SD, CANs
Boot from Parallel Flash, SD or Serial Flash

High Precision
40 bit floating point for high quality audio

High dynamic range with extended linearity

Native complex domain arithmetic instructions

Lower application development time using

floating point arithmetic
Key Applications
High precision professional audio

Acoustic signal processing

Speach/speaker recognition

Image analysis

Robotics

 Radar
, delivering up to 10 floating point operations per cycle and an
™
RISC CPU. The ARM926EJ-S supports the Jazelle
®
technology for Java
®

High Performance

ARM9 : 1.1 MIPS/MHz
 ™
Magic: up to 10 floating point operations/cycle

 Multilayer AHB matrix for parallel data path
Multiple memory accesses per cycles

52 Gbit/s on chip data bandwidth

ARM/Magic shared memory architecture for

fast data transfers
29 DMA channels

Easy To Use
Porting of Operating Systems available for

ARM
80-90% efficiency for Magic DSP

programming in C
C callable libraries for math DSP and I/O

functions for mAgic
Compatibility library with Intel

Integrated Performance
Primitive functions
AT572D940HF
®
®