ADM6926 pdf datasheet (26 port

The ADM6926 is a high performance/low cost, twenty six-port 10/100 Mbps Ethernet Switch Controller with all ports supporting 10/100 Mbps full duplex switch function. The ADM6926 is intended for applications to standalone-bridge for the low cost ether-switch market. ADM6926 can be programmed trunking port active. The trunking port can be connected to server or stacking two switch boxes to enhance the performance.
The ADM6926 also supports back-pressure in half duplex mode and 802.3x flow control in full duplex mode. When back-pressure is enabled, and there is no receive buffer available for the incoming packet, the ADM6926 will force a JAM pattern on the receiving port in half duplex mode and transmit the 802.3x packet back to receiving end in full duplex mode.
An intelligent address recognition algorithm makes ADM6926 to recognize up to 4096 different MAC addresses and enables filtering and forwarding at full wire speed.
The ADM6926 has embedded SRAM for the proprietary buffer management. The SRAM is used to store the incoming/outgoing packets. These buffers provide elastic storage for transferring data between low-speed and high-speed segments and buffers are efficiently allocated to improve the efficiency.