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MTD658E Datasheet

  • MTD658E

  • 5/8 Port 10/100 Hub Build_in Bridge And Memory

  • 520.29KB

  • 23頁

  • ETC

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MYSON
TECHNOLOGY
FEATURES
鈥?IEEE802.3 Clause 9 and IEEE802.3u Cluse 27
compliant.
鈥?Provide 8 RMII (8 port mode), or 4 RMII + 1 MII
(5 port mode).
鈥?Provide 2 inter_repeater stacking bus for 10M
and 100M port expansion each.
鈥?Support stacking to 4 units without any external
arbitration logic ( if use external arbitration
logic, theoretically can stack to 6 units and up) .
鈥?Build_in 2 port switch controller, support up to
2048 MAC addresses filtering database.
鈥?Optional back_pressure flow control.
鈥?Optional up_link_switch port function (in slave
hub), support 100FX 2km distance extension in
100FD mode.
鈥?Meet Class_2 repeater specification for
100M_hub.
鈥?Pin compatible with MTD658/655 application,
no need any external memory buffers.
鈥?128 pin QFP package, 3.3V operation voltage.
MTD658E
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 arbi-
tration 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 asynchro-
nous high speed SRAM (64k*8) for packet buffer-
ing. 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鈥?partition status.
s
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 rights to modify the product specification
without notice. No liability is assumed as a result of the use of this procuts. No rights under any patent accompany the sales of
the product.
1/23
MTD658E Revision 1.1 05/25/2000

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