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參數(shù)資料
| 型號： | GT-48004A |
| 廠商： | Galileo Technology Services, LLC |
| 英文描述： | Four Port Switched Fast Ethernet Controller(四端口、交換式快速以太網(wǎng)控制器) |
| 中文描述： | 四端口交換式快速以太網(wǎng)控制器（四端口，交換式快速以太網(wǎng)控制器） |
| 文件頁數(shù)： | 35/106頁 |
| 文件大?。?/td> | 953K |
| 代理商： | GT-48004A |
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GT-48004A Four Port Switched Fast Ethernet Controller
N:\Marketing\Docs\Archive\48004A\DATASHEET\Rev 1.0\484ads10.fm
Revision 1.0
34
Figure 8: Address Table Format
8K
Addr[0:47]
Dev#
51
1 0
2
50
58
Port#
St
55
56
1
A Sk V
3
59
R
M
Id
Is
63 62 61 60
Address Table Bits Description
Bi t
De s c ri pti o n
V
Valid: Indicates this entry is taken or previously was taken
0 - Not valid
1 - Valid
Sk
Skip - Indicates if this entry is currently being used
0 - Active entry, do not skip
1 - Inactive entry, overwriting this entry is allowed
A
Aging - This bit is used for the Aging process
0 - Cleared by the CPU
1 - Set by the GT-48001A upon receiving a packet from the station corresponding to this
entry
Addr
48 bit MAC address
Dev#
Device Number - 5 bit GalNet device number indicating which of a maximum of 32 devices
in the system is associated with this address.
Port#
Port Number - 3 bit Port number (for compatibility with the GT-48001A) indicating which of
the eight ports of a GT-48001A or which of the 2 ports of a GT-48004A is associated with
this address.
R
Reserved
St
Static - Indicates whether an entry can be modified or not
0 - The entry can be modified
1 - The entry is static, the Dev# and Port# cannot be modified
M
Multiple - Meaningful when bit St is set
0 - Forward this packet only to the destination port
1 - Forward this packet to all ports (as Unknown)
Id
Intervention for Destination Addresses
0 - Don’t activate Intervention mode for this address as a destination
1 - Activate Intervention mode
Is
Intervention for Source Addresses
0 - Don’t activate Intervention mode for this address as a source
1 - Activate Intervention mode
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