參數(shù)資料
型號: TC9205M
廠商: Electronic Theatre Controls, Inc.
英文描述: 5-Port 10/100/1000 Smart Ethernet Switch
中文描述: 5端口10/100/1000智能以太網(wǎng)交換機
文件頁數(shù): 31/51頁
文件大?。?/td> 1661K
代理商: TC9205M
TC9205M
Preliminary Data Sheet
10.3.3
Port [
X
] IFG Configuration Register
-
Addresses: 19h – 1dh
Confidential.
Copyright
2003, IC Plus Corp.
31/51
July 30, 2003
TC9205M-DS-R03
7 6 5 4 3 2 1 0
IFGConfig
RedGbBndw
GbBndwSel
not used
IFGConfigP[x]
Bit(s)
3 - 0
4
6 - 5
7
IFGConfig
Field
Description
IFGConfig
RedGbBndw
GbBndwSel
not used
Interframe Gap Configuration
Reduced gigabit bandwidth
Gigabit bandwidth selection
not used
These bits are used to set the minimum IFG with 32 bit time resolution. The default
matches the standard minimum IFG of 96 bit time: ‘0011’ (3).
IFGConfig
IFG (bit time)
0001
32
0010
64
0011
96 (default)
0100
128
1111
480
0000
512
RedGbBndw
Setting this bit to '1', will enable a 1000Mbps port to reduce its transmission
bandwidth to the percentage indicated by the
GbBndwSel
field. Setting this bit to
‘0’, the
GbBndwSel
field will be meaningless and the port will make use of its full
transmission bandwidth. This bit is in effect only when the port’s speed mode is
1000Mbps. Default is ‘0’.
Transmission bandwidth enforcement when in 1000 Mbps mode.
GbBndwSel
Transmission
bandwidth
00
50%
01
66%
10
80%
11
90%
This feature can be used to avoid congestion in some LAN nodes without flow
control capabilities or to avoid server overloads
GbBndwSel
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