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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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ES4428 Fiches technique(PDF) 1 Page - List of Unclassifed Manufacturers |
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ES4428 Fiches technique(HTML) 1 Page - List of Unclassifed Manufacturers |
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1 / 10 page  ESS Technology, Inc. SAM0358-052201 1 ES4428/ES4427 Web/DVD Set-Top Box Solution Product Brief DESCRIPTION The ES4428/ES4427 Web/DVD Internet set-top box chipset seamlessly combines both Web browser technology and DVD technology into a highly integrated, low-cost solution for the next generation of Internet set-top boxes for home use. The ES4428, which is based on ESS’s Programmable Multimedia Processor (PMP) device architecture, includes a programmable internal RISC processor core that makes it adaptable for use in embedded systems applications such as set-top boxes. The ES4427 companion chip supplies proper video sync capabilities and performs NTSC- and PAL-based video encoding and decoding as necessary to provide broadcast quality video to the television screen. The ES4428 DVD processor integrates MPEG-based audio and video data stream decoding for DVD/VCD/SuperVCD playback, DVD system navigation and Dolby AC-3 decoding into a single device. The ES4428 demuxes the incoming DVD audio and video data streams from the DVD loader using its glueless 8/16- bit parallel interface, which is hardware-compatible with many DVD loaders. The ES4428 also supports both 8- and 16-bit Flash/Read-Only Memory (ROM) and 8- and 16-bit Synchronous DRAM (SDRAM) memory I/O operations. The ES4428 controls data I/O transactions to and from the ES4427 companion chip through its 8-bit Device Serial Connect (DSC) parallel bus interface. The ES4428 also provides a 16-bit wide hardware interface with V.90-compatible modem subsystems incorporated into the set-top box design. The ES4427 incorporates a multi-standard TV encoder that supports both the NTSC and PAL formats and CCIR-601 non- square operations. Two microphone ADCs and PLL clock synthesizers are incorporated in the ES4427 device architecture. The ES4427 includes an I/O-mapped auxiliary expansion port that interfaces with the ES4428. Four pins of the port can be configured as edge-triggered interrupts, supporting critical functions, such as handling remote control and modem interrupt requests, DVD/VCD loader resets and modem board resets. Command and register accesses are issued through the DSC interface from the ES4428 DVD processor to the ES4427 through the device serial communication (DSC) interface for accessing the internal registers of the ES4427. The DSC interface port is comprised of three interface signals, the strobe (DSC_S), data (DSC_D), and clock (DSC_C). The DSC port is selected when the DSC strobe goes high and latches the data at the rising edge of the clock. Each 16-bit DSC transfer is comprised of an address followed by data. The ES4428 is available in an industry-standard 208-pin Plastic Quad Flat Pack (PQFP) package, while the ES4427 is available in an industry-standard 100-pin PQFP package. ES4428 FEATURES • On-chip hardware interface with V.90 data/fax/voice modem subsystem implemented • 640 x 480 NTSC and 640 x 576 PAL television video formats supported • Configurable for browser/DVD applications • Hardware support for infrared remote control and/or wireless keyboard • On-chip MPEG audio/video decoder and system parser • On-chip on-screen display (OSD) controller supports 4-bit blending. • On-chip subpicture unit (SPU) decoder supports karaoke lyric, subtitle and closed captioning functions. • VideoCD 1.1 and 2.0, Interactive 3.0, Super VCD and Audio CD compatibility available with Video CD / Super VCD player configuration • VideoCD 1.1 and 2.0, Interactive 3.0, Super VCD, Audio CD and MP3 compatibility available with Super VCD / DVD player configuration • DTS audio decoding supported • Programmable multimedia processor architecture • ISO/IEC 13818-2 MPEG-2 compliant • ISO/IEC 11172 MPEG-1 compliant ES4427 FEATURES • 8-bit DSC parallel bus interface generates edge-triggered interupts for data read/write interfacing with ES4428 • Dual microphone and vocal assist hardware support provided • PLL clock synthesizer based on 27 MHz crystal input generates required clocks for video encoder, video DACs and video processor SOFTWARE SUPPORT • Software stack support for the POP3, SMTP and SNMP Internet e-mail protocols defined by RFC 821, RFC 1157and RFC 2449 • Software stack support provided for the HTTP Web browsing protocol defined by RFC 1945, RFC 2068 and RFC 2616 • Software stack support provided for the TCP/IP Internet protocols defined by RFC 791 and RFC 793 • Software stack support provided for RTP payload format for MPEG-1/2 and H.261 video streaming protocols defined by RFC 2032, RFC 2038 and RFC 2250 • Software support for HTML 1.0, 2.0 and 3.2, *.aiff, *.au and *.wav audio file formats and *.gif, *.jpg and *.xbm graphic file formats, JavaScript 1.1, SSL 2.0 and SSL 3.0 • Character generation and software support for English, Big 5/GB Chinese and Japanese fonts • Software support for infrared remote control and wireless keyboard |
Numéro de pièce similaire - ES4428 |
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Description similaire - ES4428 |
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