For Communications Equipment
MN195902
Digital Signal Processor for Image CODEC
Overview
The MN195902 is a high-speed, programmable digital
signal processor based on a vector pipeline architecture
for image processing applications. It incorporates many
features that make it ideal for highly efficient coding and
decoding of still and moving pictures in applications
involving the transmission, storage, and retrieval of
images.
Features
Flexible support for complex processing by simply
rewriting the contents of its internal program memory
Built-in dedicated hardware effective for image
CODEC, including
鈥?Discrete cosine transform (DCT) converter
鈥?Two-dimensional address generator
Architecture that links internal memory, a general-
purpose arithmetic unit, dedicated arithmetic unit, and
other components with a pipeline to better support
vector calculations, multiply-and-accumulate, and
other key image processing operations
ITU-T H.261 coding for the QCIF size (176
脳
144)
with a decoding rate of 15 frames per second or higher
Applications
Image-based communications:
Moving picture videophones, video
conferencing systems, cable television
systems, image LANs, remote monitoring
systems, etc.
Image storage and retrieval:
Electronic still cameras, optical disc files,
image databases, etc.
Multimedia computers