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參數(shù)資料
| 型號(hào)： | GT-48002A |
| 廠商： | Galileo Technology Services, LLC |
| 英文描述： | Switched Fast Ethernet Controller for 100BaseX(100BaseX交換式快速以太網(wǎng)控制器) |
| 中文描述： | 交換式快速以太網(wǎng)控制器（100BaseX交換式快速以太網(wǎng)控制器的100BaseX） |
| 文件頁(yè)數(shù)： | 35/102頁(yè) |
| 文件大?。?/td> | 1001K |
| 代理商： | GT-48002A |
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GT-48002A Switched Fast Ethernet Controller
38
Revision 1.2
10.3
GalNet Messages Between a GalNet Device and a CPU
When a management CPU is used in a GalNet switch system, bit 10 (CPUEn) of the Global Control Register,
0x140028, must be set.
The five groups of GalNet messages described in the sections below are sent from one GalNet device to a CPU and
from a CPU to a GalNet device.
10.3.1 NEW_ADDRESS Message (GalNet to CPU)
A message from a GalNet device to the CPU that contains information about a new MAC Address. Bit 7 (ForwNewAdd)
of the Global Control Register (0x140028) must be set.
Table 11: NEW_ADDRESS Message (GalNet to CPU)
The NEW_ADDRESS message must be transferred in a burst of two words over the PCI from a GalNet device to the
CPU.
PCI Bi t s
De scr ipt i on
Address
[31:8]
[7:3]
[2:0]
NEW_ADDRESS Base Address (Offset: 0x14003c)
Offset Counter (32 total entries)
‘000’
Data 0
[31:3]
[2]
[1]
[0]
MAC address [19:47]
‘1’
‘0’
Data 1
[31]
[30]
[29]
[28]
[27]
[26:24]
[23:19]
[18:0]
‘1’
Reserved
Address Unknown/New address (0 - Unknown, 1 - New Address Message)
Reserved
Port Number
Device Number
MAC address [0:18]
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