Teridian Samples 78Q8430 Fast Ethernet Multi-Media Offload Controller

Teridian Semiconductor Corp. announced general sampling of its 78Q8430 10/100 Fast Ethernet Multi-Media Offload Controller for video streaming and mixed media (data, voice and vide over IP) applications. The 78Q8430 targets Ethernet applications requiring reliable connectivity and quality of service levels such as industrial networking, set top box, digital television, and other consumer broadband or audio/video equipment.

“The 78Q8430 enables designers to use more of their host processor MIPS for important system level functionality such as image/audio processing, format conversion, and encoding/decoding tasks by offloading many of the communications processing tasks to the controller,” said Tom Kapucija, director of Network marketing for Teridian Semiconductor.

IP Security Camera Application Diagram

The Teridian 78Q8430 is a 10/100BASE-TX controller that seamlessly interfaces to non-PCI processors through a simplified pseudo SRAM-like Host Bus Interface supporting 32/16/8 bit data bus widths. It provides support for IEEE802.3x flow control and compliance with IEEE802.3 and 802.3u standards and employs a unique management scheme for the integrated 32kB SRAM FIFO memory to adaptively allocate memory depending on the data stream load and direction all without host or software driver intervention for reduced host MIPS requirements and lower packet latency.

In addition, the flexible packet classification engine supports up to 128 user configurable rules and by default comes configured with 8 unicast (or perfect) IP address filtering ability, and can be configured for wildcard address filtering, positive/negative filtering, promiscuous mode operation, as well as multicast and broadcast mode operation. Other offload functionality includes 64kB JUMBO packet support, IP Checksum calculation, check/generate/strip/append CRC’s, four levels of transmit priority queuing, and the ability to drop frames based on source IP address.

“Teridian’s IC solution offers many advanced functions for 10/100 Fast Ethernet applications that are more often found on GbE systems which will help to optimize host processor utilization in many consumer electronics units now migrating to include IP connectivity,” said Michael Inouye, research analyst at In-Stat.

The 78Q8430 10/100 Fast Ethernet Multi-Media Offload Controller complements Teridian’s consumer electronics offering which include world’s smallest Ethernet phy devices, world’s broadest offering of smart card interfaces and controllers, and the world’s first single package Si DAA modems and voice over IP FXO’s. Teridian Semiconductor recently announced it has supplied ICs in over 100 million set top boxes.

Pricing and Availability
Commercial temperature grade samples of the 78Q8430, as well as evaluation kits for ST OS/20 and Linux 2.6.x (for ARM920T) are available now, with production volumes expected later this quarter. Industrial temperature grade samples will be available the following quarter. For pricing information contact any Teridian sales representative or authorized worldwide distributor.

About Teridian Semiconductor Corp.
Teridian Semiconductor designs, sells and provides engineering support for its mixed-signal integrated circuits used in energy, automation, networking, and secure access systems. These ICs connect our customers’ digital systems to the analog inputs of our world found in utility metering, industrial automation, set top box, digital TV, voice over IP, electronic identity and point of sale applications. Teridian Semiconductor strives to Simplify System Integration(TM) for its customers with a focus on accelerating system development, and reducing the engineering time required to achieve production.