f e a t u r e s a n d s p e c i f i c a t i o n s
VxWorks runtime and driver software components. The
Full-Featured Development Platform
development platform set-top box hardware has a modular
design, allowing OEMs to configure the system with their
choice of tuner/demodulator, analog modem,TV encoder,
audio DAC and SDRAM buffer size.
These ICs are packaged in a fully-engineered interactive
TV decoder development system that runs on third-party
interactive middleware/RTOS platforms and provides
complete set top box functionality. The initial platform
comes equipped with fully-integrated OpenTV, pSOS and
CX22490/22496 block diagram
Product Features
•
MPEG-2 MP@ML video decoder
supporting NTSC and PAL CCIR601
image resolution
•
•
•
NDS conditional access embedded
in the CX22496
•
•
MPEG picture and still plane upscaling
and downscaling
•
PCM audio mix and playback
– USB 1.1 OHCI host controller
(CX22490 only)
160 MHz 175 MIPS 32-bit
ARM940T CPU
Multiplane video/graphics image
compositing with color key or
256-level alpha blending
•
•
•
MPEG-1/MPEG-2 audio decoder and
Dolby Digital (AC3)
– IDE multiword DMA support
(CX22490 only)
Serial, I2C and GPIO ports
Advanced 2D graphics rendering for
bitblt, textblt, line draw and color
expansion acceleration
MPEG-2/DVB/ATSC/DSS transport
stream demultiplexing
•
•
•
Video-picture-in-graphics and
video-picture-in-video-picture support
•
•
Bi-directional IR controller and
dual smart card controllers
Integrated DVB common descrambler
•
Unified memory architecture
supporting 32-bit, 133 MHz SDRAM
Flicker filtering, aspect ratio
conversion and hardware cursor
4/8/16/32-bit RGB/YCrCb graphics
© 2001, Conexant Systems, Inc. All Rights Reserved.
Conexant and the Conexant logo are trademarks
of Conexant Systems, Inc. Other trademarks are
owned by their respective owners. Although Conexant
strives for accuracy in all its publications, this material
may contain errors or omissions and is subject to
change without notice. THIS MATERIAL IS PROVIDED AS IS
AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
www.conexant.com
General Information:
U.S. and Canada: (800) 854-8099
International: (949) 483-6996
Headquarters – Newport Beach
4311 Jamboree Rd, P.O. Box C
Newport Beach, CA 92660-3095
Order# 100877B
INCLUDING MERCHANTABILITY, FITNESS FOR
A PARTICULAR
PURPOSE AND NON-INFRINGEMENT. Conexant shall not be
liable for any special, indirect, incidental or consequential
damages as a result of its use.
01-0727
CONEXANT [ CONEXANT SYSTEMS, INC ]
