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AN983 数据表(PDF) 59 Page - List of Unclassifed Manufacturers

部件名 AN983
功能描述  PCI/miniPCI-to-Ethernet LAN Controller
PDF  91 Pages
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制造商  ETC [List of Unclassifed Manufacturers]
网页  
标志 ETC - List of Unclassifed Manufacturers

AN983 数据表(HTML) 59 Page - List of Unclassifed Manufacturers

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AN983B
PCI/miPCI Fast Ethernet Controller with integrated PHY
8.2.2 THE POINT OF DESCRIPTOR MANAGEMENT
OWN bit = 1, ready for network side access
OWN bit = 0, ready for host side access
Transmit Descriptor Pointers
Buffer2 pointer
Buffer1 pointer
Length 1
Length 2
0
Descriptor
1
Packet 1
1
Packet 1
1
Packet 2
0
0
Data
Data
Data Buffer
Length 1
Length 2
next packet to be transmitted
own bit=2,
packet1 and packet 2 are
ready to transmit
empty descriptor
pointer
end of ring
Fig -
7
Transmit pointers for descriptor management
ADMtek Inc.
www.admtek.com.tw
Rev. 1.8
59



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