MTD658E Datasheet | Unknown Manufacturer

FEATURES - IEEE802.3 Clause 9 and IEEE802.3u Cluse 27 pliant. - Provide 8 RMII (8 port mode), or 4 RMII + 1 MII (5 port mode). - Provide 2 inter_repeater stacking bus for 10M and 100M port expansion each. - Support stacking to 4 units without any external arbitration logic ( if use external arbitration logic, theoretically can stack to 6 units and up) . - Build_in 2 port switch controller, support up to 2048 MAC addresses filtering database. - Optional back_pressure flow control. - Optional up_link_switch port function (in slave hub), support 100FX 2km distance extension in 100FD mode. - Meet Class_2 repeater specification for 100M_hub. - Pin patible with MTD658/655 application, no need any external memory buffers. - 128 pin QFP package, 3.3V operation voltage. 5/8 Port 10/100 Hub Build_in Bridge And Memory GENERAL DESCRIPTION The MTD658E is a highly integrated, 10M/ 100M dual speed hub with build_in 2 port switch and 64k8 embedded ASRAM. Support 8 RMII ports for 10M/100M operation, and really meet 100M_hub class_2 spec when connect with external QPHYceivers. The MTD658E provides two Inter-repeater stacking bus for 10M and 100M expansion each, easily stack to 4 units without any external arbitration logic. If using external arbitration logic and proper bus driver, can stack to 6 units and up. The build_in 2 port switch, support 2k MAC addresses filtering, and use embedded asynchronous high speed SRAM (64k- 8) for packet buffering. This 2 port switch can also be configured to be up_link switch when hub is under slave mode. The MTD658E also support an simple and effective LED display function, provide 10M_col, 100M_col, and per port’ s partition status. BLOCK DIAGRAM Two Port Switch Embedded 64k8 ASRAM Uplink Switch Enable(10/100,FD/HD) RMII7 10M_HD 10M Inter Hub Bus RMII6 RMII5 RMII4 RMII3 RMII2 RMII1 RMII0 10M Hub Port Switch Logic 100M_HD 100M Inter Hub Bus 100M Hub This datasheet contains new product information. Myson Technology reserves the...