CONEXANT CX92745

Imaging Solutions
Interactive Display Appliances
CX92745 Interactive Display, Media, and Image
Processor
Complete Multimedia Solution on a Single Chip
Conexant’s CX92745 System-on-Chip (SoC) and high-speed triple video DACs to support a
is an integrated display, media, and image wide range of display applications.
processor delivering a new level of performance
®
and system integration. The SoC builds on Network connectivity including Bluetooth , 3G,
®, and integrated Ethernet is supported.
WiFi
Conexant’s strengths in image and mixed-signal
processing, and integrates high performance The integrated camera card controller supports
1080p video and graphics processing hardware. all popular memory cards, and an advanced
To support robust system design and lower NAND Flash Controller supports NAND boot
Bill of Material (BOM) costs, the CX92745 and extended MLC-NAND ECC control.
also integrates a stereo Class-D amplifier, A high-performance ARM RISC processor
microphone input, touchscreen controller, and supports robust embedded operating system
power supply controller.
and application design.
High-speed USB
2.0
Host
and
Device
ports
support PC and
The hardware video subsystem supports 1080p
peripheral
connection.
Enhanced
multimedia
decode and video post processing for popular
video codecs, including H.264, and offloads and graphics processing is further supported
the CPU from video decode tasks. Along with with the CX92745’s ARM Vector Floating Point
video decode, the CX92745 supports a BT.656 Unit (VFP), large internal caches, and high
compatible video-in port for video capture and speed DDR2 memory.
docking applications.
For advanced GUI operations, the CX92745
supports a hardware graphics processing
unit (GPU). This GPU includes a Display List
Processor along with Alpha Blend and Clipping
Units to support complex, independent UI
operations. The CX92745 features a flexible,
programmable LCD interface, hardware JPEG
codec, and Conexant’s advanced Image
Processing pipeline. The CX92745 display subsystem further integrates an LVDS transmitter
Key Features
The CX92745 contains several features which
lower cost and operating power while providing
unsurpassed image processing and flexibility.
Conexant’s industry-standard development
environment enables manufacturers to quickly
design cost-effective interactive display
products.
The SoC is packaged in an environmentallyfriendly, RoHS/Green-compliant 400-pin finepitch ball grid array (fpBGA).
Benefits
Applications
• Connected Digital Frames
• Interactive Kiosks
ARM microprocessor with Vector Floating
Point Unit, MMU
Easily handles complex computational,
geometry, and system tasks
• Home Automation/Security
Hardware 1080p MPEG2 / MPEG4 / H.263 /
H.264 Video Decoder & BT.656 Video-in
Port
Hardware acceleration to speed up
decoding/displaying common video formats
and profiles
• Digital Signage
Hardware graphics processor with Display
List Processor and Alpha Blend Unit
Supports advanced independent UI
operations and display effects
• Home Web Terminals
Flexible high-performance image processing
pipeline and JPEG codec
Quickly provides superior photo rendering
and multimedia processing
Hardware touchscreen controller for
advanced capacitive touchscreens
Low cost touchscreen implementation with
proven drivers
Advanced MLC NAND Flash Controller with
robust ECC and NAND boot capability
Provides extended internal memory storage
Integrated Class-D stereo DAC, stereo
microphone, and on-chip Power Supply
Controller
System BOM savings
Flexible LCD Controller with integrated
video DACs, LVDS transmitter
Directly interfaces to analog and digital
LCD’s, LVDS LCD’s, analog monitors, and
HDMI controllers
• Interactive TV Appliance
Part Number CX92745
Description
Interactive Display, Media, and Image Processor
Imaging Solutions
Interactive Display Appliances
CX92745 Features
Processor
• ARM RISC microprocessor and Memory Management Unit (MMU)
• ARM Vector Floating Point Unit and Java Byte-
Code Acceleration
• 600MHz DDR2 Memory Subsystem - up to 1GB support
External Memory Support
• DDR2 Memory Subsystem - up to 1GB support
• Serial Flash
• MLC NAND Flash Controller / NAND boot / extended ECC
• SD card / SDIO expansion port
• Embedded Memory Card Controller (CF, xD, MS, MS-Pro, SD/SDHC, MMC)
Connectivity/Interfaces
• Integrated Ethernet MAC
• USB 2.0 high-speed device and USB hosts (2)
• Additional high-speed and expansion ports for peripheral integration
• SPI, I2C, SSP (Synchronous Serial Port), supporting SDcard, and SDIO
• SPI / UART modem interface to Conexant modem solutions
Direct Resistive
and Capacitive
Touch Control
Video and Image Processor
• Hardware 1080p MPEG2 / H.263 / MPEG4 / H.264 Decoder, including up to Advanced Profile MPEG4, and Main Profile H.264
• Hardware Video Post Processor with Scaling, Rotation, Color Operations
• Hardware JPEG codec, unlimited JPEG size support
• Programmable, Pipelined Image Processor
- Color Space/Image Filter/Error Diffusion
- Adjustable Color Tables, Tonal Response Curve (TRC), filters to enable unique display
features
Graphics Processing Unit (GPU)
• Programmable Display List Processor
• Linear to X,Y memory addressing
• Multi-operand BLT, Line engine with Transparency and Blending
• Alpha Blending and Region Clipping
• Two-operand BitBLT, Line, Stipple, Fill Operations with Transparency
Display Support
• TFT LCD (Digital RGB) up to 24bits / pixel
• Hardware Overlay support
• High-speed triple 8-bit Video DACs and Analog TCON Touchscreen
Controller
Display Processor
Analog TCON LVDS/
DVI-A Comp. RGB
H/W Overlay
LED B/L V
LCD Display
USB Drive
(PTP, MSC Devices,
USB Expansion
USB 802.11n
Bluetooth®
GSM, Radio
Color HD-LCD
Controller
Stereo Audio
Microphone In
Memory Controller
USB 2.0
Host I/F (2)
Audio Co-processor
Class-D Amp, DAC,
MIC-in, EQ, NR
ARM CPU
16KB/ 32KB Cache
Vector Floating Point Unit
BT.656 Camera I/F
Hardware 1080p Video Engine
and
Video Post Processor
USARTs (3)
ARM9
MMU, VPU
MLC NAND/ Boot
CMOS Sensor
Video-in
User Interface Panel
IR Remote
Rotation/ Light Sensor
Touchscreen
Conexant Modem
Bluetooth
Power Supply Controller
DC-DC, LCD
Graphics Processing Unit
200M Pixel
Alpha Blend
Ethernet MAC
DDR2
Serial FLASH/ ROM
NAND Flash
Controller
GPIO / ADC
USB 2.0
High Speed/
Full Speed I/F
Computer
Hardware Image
Processing Accelators
Parallel JPEG Decode/ Encode
Zoom and Arbitary Scale
Color Space Conversion
High Speed Hardware JPEG Codec
• Integrated LVDS transmitter
• Integrated Capacitive Touchscreen Controller
• GPIO support for buttons, LED’s, sensors, etc.
Audio and Power Supply Controllers
• 1.2W stereo Class-D amplifier with EQ, noise reduction, stereo microphone input, line-out
• On-chip Power Supply Controller, including buck and boost regulators, and LCD VGh / VGl generation
• I2S interface for audio codec expansion
Timers
• Real-time clock with battery backup
A/D and PWM Control
• Multi-channel 10-bit A/D
• Pulse width modulators (PWMs) with firmware control
Package
• 400-pin fpBGA package - RoHS/Green compliant
Development Environment
• Linux BSP Development Environment
• JTAG In-Circuit Emulator
• Conexant EVK and Reference Designs
Memory Card Controller
(CF, SM, MS, xD, SD/ MMC)
SSP
(SDIO) Port
Memory Cards
SPI Bus
CX93510 JPEG Encoder with
BT.656 Camera Interface
Ethernet
Physical Layer
WiFi, SDIO,
Storage Options
Conexant Modem
CX92745 Block Diagram
Conexant Product Portfolio
Conexant’s comprehensive product portfolio includes solutions for imaging, audio, video surveillance, and embedded modem applications.
© 2010 Conexant Systems, Inc. All Rights Reserved. Conexant and the Conexant
logo are registered trademarks of Conexant Systems, Inc. All 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, 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.
10-2919
www.conexant.com
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