参数资料
型号: GT-48004A
厂商: Galileo Technology Services, LLC
英文描述: Four Port Switched Fast Ethernet Controller(四端口、交换式快速以太网控制器)
中文描述: 四端口交换式快速以太网控制器(四端口,交换式快速以太网控制器)
文件页数: 42/106页
文件大小: 953K
代理商: GT-48004A
GT-48004A Four Port Switched Fast Ethernet Controller
N:\Marketing\Docs\Archive\48004A\DATASHEET\Rev 1.0\484ads10.fm
Revision 1.0
40
11.3
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.
11.3.1 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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