FSG5/8 is a 5/8-port switching fabric with an embedded packet memory. FSG5/8 has 5/8 triple speed GMII interfaces of 10/100/1000 Mbps. The maximum switching bandwidth of FSG5/8 is 10Gbps/16Gbps, hence it is able to forward up to 12 million packets per second and to achieve wire-speed forwarding on every port for concurrent and independent traffic streams. In half-duplex flow control service, FSG5/8 supports back-pressure congestion control to avoid packet loss during a long burst of traffic. In full-duplex flow control service, FSG5/8 supports symmetric IEEE 802.3x frame-based flow control. Note that FSG5/8 only supports full-duplex mode in the speed of 1000 Mbps. FSG5/8 has an internal packet buffer memory of 768 Kbits in size and an address database memory that may hold up to 8K unicast addresses.

¡P  IEEE Std. 802.3 (year 2000) compliant.

¡P  FSG5/8 supports 5/8 10/100/1000 Mbps GMII/MII interfaces.

¡P  Utilize fully non-blocking shared memory architecture using 768Kbits embedded SSRAM and flexible buffer management scheme.

¡P  Wire-speed store-and-forward switching with low switching latency. Automatic address learning and aging, local frames filtering.

¡P  Full-duplex IEEE 802.3x flow control and half-duplex back-pressure with intelligent port-based congestion detection and broadcast rate control.

¡P  Supports up to 8K unicast MAC addresses and unlimited number of broadcast addresses. Uses 4-layer hashing table.

¡P  Supports broadcast storm prevention function.

¡P  Supports Jumbo Frame of up to 9K bytes.

¡P  Dual 125MHz / 75MHz clock source, 0.18 micron, and 1.8V low power CMOS technology (3.3V tolerant I/O) with high fault coverage DFT inside.

¡P  208 pins PQFP.

Datasheet download V1.0

Application
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