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參數資料
| 型號： | MTD655 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 5 Port 10M/100M Hub With 2 port Switch |
| 中文描述： | 5端口10M/100M自適應樞紐2端口開關 |
| 文件頁數： | 1/18頁 |
| 文件大小： | 197K |
| 代理商： | MTD655 |
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.
1/18
MTD655 Revision 2.0 17/03/2000
MTD655
MYSON
TECHNOLOGY
5 Port 10M/100M Hub With 2 port Switch
FEATURES
GENERAL DESCRIPTION
BLOCK DIAGRAM
IEEE802.3 Clause 9 and IEEE802.3u Cluse 27
compliant.
Provide 4 RMII (Reduced Media Independent
Interface) ports and 1 MII port.
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.
Use simple and low cost asynchronous SRAM
(high speed ASRAM 128k*8 : one pcs only)
128 pin PQFP package, 5V operation voltage.
The MTD655 is a highly integrated, 10M/
100M dual speed hub with build_in 2 port switch.
Support 4 RMII ports and 1 MII port for 10M/
100M operation, and meet 100M_hub class_2
spec when connect with external PHYceivers.
The MTD655 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 low cost asynchro-
nous high speed SRAM (128k*8) one pcs only for
packet buffering. This 2 port switch can also be
configured to be up_link switch when hub is
under slave mode.
The MTD655 also support an simple and
effective LED display function, provide 10M_col,
100M_col, memory_test_fail, and per port’s parti-
tion status.
ASRAM Interface
RMII4
RMII3
RMII2
RMII1
MII0
10M
Hub
100M
Hub
Two Port
Switch
Uplink Switch Enable(10/100,FD/HD)
10M_HD
100M_HD
Port
Switch
Logic
10M
Inter Hub Bus
100M
Inter Hub Bus
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