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參數(shù)資料
| 型號(hào)： | ES4428 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Web/DVD Set-Top Box Solution |
| 中文描述： | 網(wǎng)絡(luò)/影碟機(jī)頂盒解決方案 |
| 文件頁(yè)數(shù)： | 1/10頁(yè) |
| 文件大小： | 119K |
| 代理商： | ES4428 |
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
subsystems incorporated into the set-top box design.
V.90-compatible
modem
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
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