參數(shù)資料
型號(hào): GT-48004A
廠(chǎng)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(yè)數(shù): 40/106頁(yè)
文件大?。?/td> 953K
代理商: GT-48004A
GT-48004A Four Port Switched Fast Ethernet Controller
39
Revision 1.0
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11.2.4 PACKET_TRANSFER Message between GalNet devices
A burst of up to 8 32-bit words from the source GalNet device to the target GalNet device which contains the packet.
The PACKET_TRANSFER message can be transferred using any burst size over the PCI. The GalNet device uses a
burst of 8 words.
11.2.5 END_OF_PACKET Message between GalNet devices
A message from the source GalNet device to the target GalNet device which indicates the end of the packet.
Table 9: PACKET_TRANSFER Message between GalNet devices
PCI Li n e
D escr ip tio n
Address
[31:27]
[26:22]
[21]
[20:0]
GalNet Protocol Region
Target Device Number
‘1’ (DRAM)
DRAM location
Data 0
[31:0]
Data 0
----
Data 7
[31:0]
Data 7
Table 10: END_OF_PACKET Message between GalNet devices
PC I L i ne
D escr ip ti on
Address
[31:27]
[26:22]
[21]
[20:18]
[17:0]
GalNet Protocol Region
Target Device Number
‘0’ (Internal registers)
‘111’ (END_OF_PACKET message)
‘0’
Data 0
[31]
[30]
[29:22]
[21]
[20:10]
[9:0]
CRC (0 - Do not append, 1 - Append) Always ‘0’, GalNet never appends CRC
‘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)
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