參數(shù)資料
型號: MVTX2604
廠商: Zarlink Semiconductor Inc.
英文描述: Managed 24-Port 10/100 Mb + 2 Port 1 Gb Ethernet Switch
中文描述: 管理24端口的10/100 Mb 2端口千兆以太網(wǎng)交換機1
文件頁數(shù): 64/173頁
文件大?。?/td> 2097K
代理商: MVTX2604
MVTX2604
Data Sheet
66
Zarlink Semiconductor Inc.
Bit [0]
1 - Flow Control Off
0 - Flow Control On
When Flow Control On:
In half duplex mode the MAC transmitter applies back pressure for flow
control.
In full duplex mode the MAC transmitter sends Flow Control frames when
necessary. The MAC receiver interprets and processes incoming flow
control frames. The Flow Control Frame Received counter is incremented
whenever a flow control is received.
When Flow Control off:
In half duplex mode the MAC Transmitter does not assert flow control by
sending flow control frames or jamming collision.
In full duplex mode the Mac transmitter does not send flow control frames.
The MAC receiver does not interpret or process the flow control frames. The
Flow Control Frame Received counter is not incremented.
Bit [1]
1 - Half Duplex - Only in 10/100 mode
0 - Full Duplex
Bit [2]
1 - 10 Mbps
0 - 100 Mbps
Bit [4:3]
00 – Automatic Enable Auto Neg. - This enables hardware state machine
for auto-negotiation.
01 - Limited Disable auto Neg. This disables hardware for speed auto-nego-
tiation. Hardware Poll MII for link status.
10 - Link Down. Force link down (disable the port).
11 - Link Up. The configuration in ECR1[2:0] is used for (speed/half
duplex/full duplex/flow control) setup.
Bit [5]
Asymmetric Flow Control Enable.
0 – Disable asymmetric flow control
01 – Enable Asymmetric flow control
When this bit is set, and flow control is on (bit[0] = 0), don’t send out a flow
control frame. But MAC receiver interprets and processes flow control
frames.
Bit [7:6]
SS - Spanning tree state (802.1D spanning tree protocol)
Default is 11
.
00 – Blocking: Frame is dropped
01 - Listening: Frame is dropped
10 - Learning: Frame is dropped. Source MAC address is learned.
11 - Forwarding: Frame is forwarded. Source MAC address is learned.
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