參數(shù)資料
型號: GT-48001A
廠商: Galileo Technology Services, LLC
英文描述: Switched Ethernet Controller For 10BaseX(10BaseX交換式快速以太網控制器)
中文描述: 交換式以太網控制器10BaseX(10BaseX交換式快速以太網控制器)
文件頁數(shù): 33/101頁
文件大?。?/td> 1235K
代理商: GT-48001A
GT-48001A Switched Ethernet Controller
Revision 1.6
37
10.3.2 NEW_ADDRESS Message (CPU to GalNet)
A message from the CPU to a GalNet device that contains information about a new MAC Address.
Table 12: NEW_ADDRESS Message (CPU to GalNet)
The NEW_ADDRESS message must be transferred in a burst of three words over the PCI.
Data 2 must be sent when sending the NEW_ADDRESS message. After every NEW_ADDRESS message sent by the
CPU, a dummy NEW_ADDRESS message (with a non existing MAC address) should be sent with Data2 cleared (all
0s). The dummy MAC address can be all zeros or another MAC address that doesn't exist in the network.
PCI Bi t s
De scr ipt i on
Address
[31:27]
[26:22]
[21]
[20:18]
[17:0]
GalNet Protocol Region
Target Device Number
‘0’ (Internal registers)
‘100’ (NEW_ADDRESS message)
‘0’
Data 0
[31:3]
[2]
[1]
[0]
MAC address [19:47]
Aging
Skip
Valid (should always be ‘1’)
Data 1
[31]
[30]
[29]
[28]
[27]
[26:24]
[23:19]
[18:0]
‘1’
Static
Address Unknown/New address (0 - Unknown, 1 - New Address Message)
Multiple
‘0’
Port Number
Device Number
MAC address [0:18]
Data 2
[24]
[25]
Intervention Mode for Destination Address
Intervention Mode for Source Address
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