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參數(shù)資料
| 型號： | DM9008 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | ISA/Plug & Play Super Ethernet Contoller |
| 中文描述： | 的ISA /插頭 |
| 文件頁數(shù)： | 17/68頁 |
| 文件大?。?/td> | 403K |
| 代理商： | DM9008 |
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DM9008
ISA/Plug & Play Super Ethernet Contoller
Final
Version :DM9008-DS-F02
June 14, 2000
17
Transmit Configuration Register (TCR)
The transmit configuration register determines the actions of the transmitter section of the DM9008 during transmission of a packet on
the network. LB1 and LB0 power up as 0.
7
6
5
4
3
2
1
0
--
--
--
OFST
ATD
LB1
LB0
CRC
Bit
Symbol
Description
D0
CRC
Inhibit CRC
0: CRC appended by transmitter
1: CRC inhibited by transmitter
D1
D2
LB0
LB1
Encoded Loopback Control: These encoded configuration bits set the type of oopback that
is to be performed. Note that loopback in mode 2 sets the ENA in oopback mode and
that D3 of the DCR must be set to zero for loopback operation
LB1 LB0
Mode 0 0 0 Normal Operation
Mode 1 0 1 ENC module Loopback
Mode 2 1 0 ENA module oopback
Mode 3 1 1 Loopback to Coax
D3
ATD
Auto Transmit Disable: This bit allows another station to disable the DM9008 transmitter by
transmission of a particular multicast packet. The transmitter can be re-enabled by
resetting this bit or by reception of a second particular multicast packet
0: Normal Operation
1: Reception of multicast address hashing to bit 62 disables transmitter; reception of
multicast address hashing to bit 63 enables transmitter
D4
OFST
Collision Offset Enable: This bit modifies the backoff algorithm to allow propitiation of
nodes
0: Backoff Logic implements normal algorithm
1: Forces Backoff algorithm modification to 0 to 2
min(3+n,10)
slot times for first
three collisions, then follows standard backoff. (For first three collisions, station has
higher average backoff delay, resulting in a low priority mode.)
D5
--
Reserve must be set to zero
D6
--
Reserved
D7
--
Reserved
相關PDF資料 |
PDF描述 |
|---|---|
| DM9008F | ISA/Plug & Play Super Ethernet Contoller |
| DM9081 | 10BASE-T Hub Controller |
| DM9081F | 10BASE-T Hub Controller |
| DM9095 | Twisted-Pair Medium Attachment Unit |
| DM9095L | Twisted-Pair Medium Attachment Unit |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DM9008AEP | 制造商:DAVICOM 制造商全稱:DAVICOM 功能描述:Ethernet Controller with General Processor Interface |
| DM9008AEP_06 | 制造商:DAVICOM 制造商全稱:DAVICOM 功能描述:Ethernet Controller with General Processor Interface |
| DM9008AEP_08 | 制造商:DAVICOM 制造商全稱:DAVICOM 功能描述:Ethernet Controller with General Processor Interface |
| DM9008C | 制造商:DAVICOM 制造商全稱:DAVICOM 功能描述:Ethernet Controller With General Processor Interface |
| DM9008CEP | 制造商:DAVICOM 制造商全稱:DAVICOM 功能描述:Ethernet Controller With General Processor Interface |
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