de http://www.atmel.com/dyn/resources/prod_documents/doc7902.pdf
VECTOR MULTIPLICATION COPROCESSOR:
Multimedia applications commonly require arithmetic operations on 3x8-bit matrices for image filtering (FIR
filtering), image color-space conversion (RBG<->YUV), image scaling, and MPEG-4/H.264 Quarter Pixel Motion
Estimation. In order to keep CPU throughput as high as possible, the AP7000 has integrated the vector
multiplication unit (VMU) to the AVR32 AP co-processor interface, tightly coupled to the CPU.
For example, MPEG4 video is compressed using the YUV color space, while most video DACs and LCD
controllers require RGB input. The vector multiplier co-processor executes this conversion in real-time without
CPU intervention. When used for image scaling operations, the AP7000's vector multiplication co-processor
increases the performance by as much as ten times.
[^] # Re: gumtrix
Posté par Croweye . En réponse au journal Kit de développement Linux embarqué à 69$. Évalué à 1.
VECTOR MULTIPLICATION COPROCESSOR:
Multimedia applications commonly require arithmetic operations on 3x8-bit matrices for image filtering (FIR
filtering), image color-space conversion (RBG<->YUV), image scaling, and MPEG-4/H.264 Quarter Pixel Motion
Estimation. In order to keep CPU throughput as high as possible, the AP7000 has integrated the vector
multiplication unit (VMU) to the AVR32 AP co-processor interface, tightly coupled to the CPU.
For example, MPEG4 video is compressed using the YUV color space, while most video DACs and LCD
controllers require RGB input. The vector multiplier co-processor executes this conversion in real-time without
CPU intervention. When used for image scaling operations, the AP7000's vector multiplication co-processor
increases the performance by as much as ten times.
Disponible mi-mai!