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| 型號： | GT-48004A |
| 廠商： | 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） |
| 文件頁數(shù)： | 48/106頁 |
| 文件大?。?/td> | 953K |
| 代理商： | GT-48004A |
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GT-48004A Four Port Switched Fast Ethernet Controller
N:\Marketing\Docs\Archive\48004A\DATASHEET\Rev 1.0\484ads10.fm
Revision 1.0
46
11.3.10 END_OF_PACKET Message (GalNet to CPU 16 Block Buffer)
A message from the source GalNet device to the CPU which indicates the end of the packet. This message is used
when the GalNet device forwards one of the following packets directly to the CPU 16 block buffer:
Unicast packets destined for the CPU (Device Number in the address table is equal to the CPU number)
Multicast packets
Unknown packets (if set by bit 6 in the Global Control Register, 0x140028)
BPDU messages
Sniffer packets when the CPU is the target sniffer
EASE packets
The END_OF_PACKET message is written to the first word of the buffer.
Table 20: END_OF_PACKET Message (GalNet to CPU 16 Block Buffer)
11.3.11 END_OF_PACKET Message (GalNet to CPU in Unicast Intervention Mode)
A message from the source GalNet device to the CPU which indicates the end of a unicast packet transfer to the CPU
in intervention mode. The END_OF_PACKET message is written to the first word of the buffer.
Table 21: END_OF_PACKET Message (GalNet to CPU in Unicast Intervention Mode)
PC I B i t s
D escr ip ti on
Address
[31:15]
[14:11]
[10:0]
CPU Buffer Base Address (0x140038)
Offset Counter (16 total blocks)
‘0’ (Always to the First word)
Data 0
[31]
[30:24]
[23:16]
[15]
[14:12]
[11:1]
[0]
Sniffer Packet
Reserved
EASE sample (port0, bit 16; port7, bit 23)
EASE sample is an original packet to CPU
Source Channel Number
Byte Count
Valid Bit
PC I B i t s
D escr ip ti on
Address
[31:27]
[26:22]
[21]
[20:0]
GalNet Protocol Region
CPU Device Number (bits [12:8] in 0x140 030)
‘1’ (DRAM)
‘0’ (Always to the First word)
Data 0
[31]
[30:24]
[23:16]
[15]
[14:12]
[11:1]
[0]
Sniffer Packet
Reserved
EASE sample (port0, bit 16; port7, bit 23)
EASE sample is an original packet to CPU
Source Channel Number
Byte Count
Valid Bit
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