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(wǎng)控制器)
中文描述: 交換式以太網(wǎng)控制器10BaseX(10BaseX交換式快速以太網(wǎng)控制器)
文件頁數(shù): 30/101頁
文件大?。?/td> 1235K
代理商: GT-48001A
GT-48001A Switched Ethernet Controller
34
Revision 1.6
10.2.2 BUFFER_REQUEST Message between GalNet devices
A message sent from a source GalNet device to a target GalNet device to request a buffer.
10.2.3 START_OF_PACKET Message between GalNet devices
A message from a target GalNet device to the source GalNet device which contains the Empty Receive Buffer address.
The START_OF_PACKET message must be transferred in a burst of two words over the PCI.
Table 7: BUFFER_REQUEST Message between GalNet devices
PC I B i t s
D escr ip ti on
Address
[31:27]
[26:22]
[21]
[20:18]
[17:13]
[12:0]
GalNet Protocol Region
Target Device Number
‘0’ (Internal registers)
‘101’ (BUFFER_REQUEST message)
Source Device Number
‘0’
Data 0
[31]
[30]
[29:28]
[27:25]
[24:22]
[21]
[20:10]
[9:0]
Sniffer (0-Sniffer type message)
Unknown (0-Unknown message)
‘0’
Source Port Number
Target Port Number
Multicast/Unicast (0-Unicast)
Byte Count
Source Buffer Address (divided by 0x600)
Table 8: START_OF_PACKET Message between GalNet devices
P CI Li ne
D escr ipt i on
Address
[31:27]
[26:22]
[21]
[20:18]
[17:0]
GalNet Protocol Region
Source Device Number
‘0’ (Internal registers)
‘110’ (START_OF_PACKET message)
‘0’
Data 0
[31]
[30]
[29:22]
[21]
[20:10]
[9:0]
Sniffer (0 - Sniffer type message)
‘0’
Target Port Number (1bit per each port; bit 22 - Port 0, bit 23 - Port 1 etc.)
Multicast/Unicast (0-Unicast)
Byte Count
Target Buffer Address (divided by 0x600)
Data 1
[31:18]
[17:15]
[14:5]
[4:0]
‘0’
Source Port Number
Source Buffer Address (divided by 0x600)
Target Device Number
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