MTD658 Overview
The MTD658 is a highly integrated, 10M/ 100M dual speed hub with build_in 2 port switch. Support 8 RMII ports for 10M/100M operation, and really meet 100M_hub class_2 spec when connect with external QPHYceivers. The MTD658 provides two Inter-repeater stacking bus for 10M and 100M expansion each, easily stack to 4 units without any external arbitration logic.
MTD658 Key Features
- IEEE802.3 Clause 9 and IEEE802.3u Cluse 27 pliant
- Provide 8 RMII (Reduced Media Independent Interface) ports
- 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 ca
- 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
- Use simple and low cost asynchronous SRAM (high speed ASRAM 128k-8 : one pcs only)
- 128 pin PQFP package, 5V operation voltage