78Q8430-100IGTR/F集成電路（IC）的控制器規(guī)格書(shū)PDF中文資料

DESCRIPTION

The Teridian 78Q8430 is a 10/100 Fast Ethernet controller supporting multi-media offload. The device is optimized for host processor offloading and throughput enhancements for demanding multi-media applications found in Set Top Box, IP Video and Broadband Media Appliance applications. The 78Q8430 seamlessly interfaces to non-PCI processors through a simplified pseudo SRAM-like Host Bus Interface supporting 32/16/8 bit data bus widths. Supported features include IEEE802.3x flow control and full IEEE802.3 and 802.3u standards compliance.

FEATURES

? Single chip 10Base-T/100Base-TX IEEE-802.3 compliant MAC and PHY

? Adaptive 32 kB SRAM FIFO memory allocation between Tx and Rx paths

? Queue independent user settable water marks

? Per queue status indication

? Address Resolution Controller (ARC)

? Multiple perfect address filtering: 8 default (max 12)

? Wildcard address filtering, individual, multicast and broadcast address recognition and filtering

? Positive/negative filtering and promiscuous mode

? 64 kB JUMBO packet support

? QoS: 4 Transmit priority levels

? Non-PCI pseudo-SRAM Host Bus Interface

? 8-bit, 16-bit and 32-bit bus width

? Big/little endian support for 16-bit/32-bit bus widths

? Asynchronous (100 MHz) and synchronous (50 MHz) bus clock support

? Low power and flexible power supply management

? Power down/save

? Wake on LAN (Magic Packet?, OnNow packet)

? Link status change

? Traffic Offload Engine Functionality

? Transfer frame: APF & ICMP Echo

? IP Firewall configuration: drop frames on source IP address

? IP Checksum

? Available in an industrial temperature range (-40 °C to +85 °C)

? RoHS compliant (6/6) lead-free package

APPLICATIONS

? Satellite, cable and IPTV Set Top Boxes

? Multi Media Residential Gateways

? High Definition 1080p/1080i DTVs

? IP-PVR and video distribution systems

? Digital Video Recorders/Players

? Routers and IADs

? Video over IP system, IP-PBX

? IP Security Cameras / PVRs

? Low latency industrial automation

BENEFITS

? Support for IEEE-802.3, IEEE-802.3u and IEEE-802.3-2000 Annex 31.B

? Low host CPU utilization/overhead with minimal software driver overhead and small driver memory space requirements

? Improved packet processing, low latency and low host CPU utilization

? Highest performance streaming Video over IP

? Optimized performance in mixed media application such as video, data and voice

? Ease of use, faster development cycles, high throughput

? Optimized power conservation with automatic turn on when needed

? Reduced host CPU utilization and overhead

? Improved packet processing

? Optimized performance in mixed media applications