8430
The Teridian 78Q8430 is a 10/100TX controller supporting multi-media offload, optimized for host processor offload 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 and provides support for IEEE802.3x flow control and compliance with IEEE802.3 and 802.3u standards. Supporting 10Base-T and 100Base-TX, the transceiver provides Auto MDI-X cable cross-over correction, AUTO Negotiation, Link Configuration and FULL/HALF duplex support with Full-duplex flow control and requires only a dual 1:1 isolation transformer for line interfacing. The 78Q8430 incorporates flow control requiring only a dual 1:1 isolation transformer for line interfacing and incorporates numerous packet processing and IP address resolution control functions, in addition to an extensive set of Error Monitoring, Reporting and Troubleshooting features. Teridian's 78Q8430 provides optimal 10/100 Ethernet connectivity in demanding video streaming and mixed-media applications.Features
Single Chip 10/100 Fast Ethernet integrated PHY and MAC32kB SRAM FIFO memory
- Adaptive memory allocation between Tx and Rx paths
- Queue independent user settable 'water marks'
- Per queue status indication
- 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
Non-PCI pseudo-SRAM Host Bus Interface
- 8b, 16b, 32b bus width
- Big/little endian support for 16b/32b bus widths
- Asynchronous (100MHz) and synchronous (50MHz) bus clock support
- Power down/save, Wake on LAN (MAGIC packet, ON Now packet), Link Status Change
- Transfer Frame – ARP & ICMP Echo
- IP Firewall configuration – drop frames on source IP address
- IP Checksum
- Application Diagram - 8430 Set Top Box (1205 KB)
- Application Diagram - 8430 Network Cameras (997 KB)