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參數(shù)資料
| 型號： | DM9102DE |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | SINGLE CHIP FAST ETHEMET NIC CONTROLLER |
| 中文描述： | 單晶片快速以太網(wǎng)NIC控制器 |
| 文件頁數(shù)： | 44/70頁 |
| 文件大?。?/td> | 2245K |
| 代理商： | DM9102DE |
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44
Preliminary datasheet
Version: DM9102D-DS-P02
Jan. 14, 2005
Transmit Descriptor Format
TDES0: Owner Bit with Transmit Status
31
0
OWN
Status
Control
bits
Buffer Address
Next Descriptor Address
TDES0
TDES1
TDES2
TDES3
Buffer Length
Bit 31: OWN,
1=owned by DM9102D, 0=owned by host, this bit should be
set when the transmitting buffer is filled with data and ready
to be transmitted. It will be reset by DM9102D after
transmitting the whole data buffer.
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
ES
EC
0
CC
TX
JT
LOC
NC
LC
0
FUE
DF
This word wide content includes status of transmitted frame.
They are loaded after the data buffer that belongs to the
corresponding descriptor is transmitted.
Bit 15: ES, Error Summary
It is set for the following error conditions:
Transmit Jabber Time-out (TXJT=1), Loss of Carrier
(LOC=1), No Carrier (NC=1), Late Collision (LC=1),
Excessive Collision (EC=1), FIFO Underrun Error (FUE=1).
Bit 14: TXJT, Transmit Jabber Time Out
It is set to indicate the transmitted frame is truncated due to
transmit jabber time out condition. The transmit jabber time
out interrupt CR5<3> is set.
Bit 11: LOC, Loss of Carrier
It is set to indicate the loss of carrier during the frame
transmission. It is not valid in internal loopback mode.
Bit 10: NC, No Carrier
It is set to indicate that no carrier signal from transceiver is
found. It is not valid in internal loopback mode.
Bit 9: LC, Late Collision
It is set to indicate a collision occurs after the collision
window of 64 bytes. Not valid if FUE is set.
Bit 8: EC, Excessive collision
It is set to indicate that the transmission is aborted due to 16
excessive collisions.
Bit 7: Reserved
This bit is 0 when read.
Bits 6-3: CC, Collision Count
These bits show the number of collision before
transmission. Not valid if excessive collision bit is also set.
Bit 2: Reserved
This bit is 0 when read.
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
OWN
相關PDF資料 |
PDF描述 |
|---|---|
| DM9102 | Single Chip Fast Ethernet NIC controller |
| DM9102A | Single Chip Fast Ethernet NIC controller |
| DM9102AF | Single Chip Fast Ethernet NIC controller |
| DM9102AT | Single Chip Fast Ethernet NIC controller |
| DM9108APPLICATIONENGINEERINGNOTESONE | DM9108 Application Engineering notes one |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DM9102DEP | 制造商:DAVICOM 功能描述:IC ENET CNTRL 10/100M PHY 1 制造商:DAVICOM 功能描述:IC ENET CNTRL 10/100M PHY 128LQFP 制造商:DAVICOM 功能描述:IC, ENET CNTRL, 10/100M PHY, 128LQFP 制造商:DAVICOM 功能描述:IC, ENET CNTRL, 10/100M PHY, 128LQFP; Data Rate:100Mbps; Ethernet Type:IEEE 802.3u; Supply Voltage Min:2.375V; Supply Voltage Max:2.625V; Digital IC Case Style:LQFP; No. of Pins:128; Interface Type:PCI; Operating Temperature Min:0C;;RoHS Compliant: Yes |
| DM9102H | 制造商:DAVICOM 制造商全稱:DAVICOM 功能描述:Single Chip Fast Ethernet NIC Controller |
| DM9102HEP | 制造商:DAVICOM 制造商全稱:DAVICOM 功能描述:Single Chip Fast Ethernet NIC Controller |
| DM9103 | 制造商:DAVICOM 制造商全稱:DAVICOM 功能描述:10/100 Mbps 3-port Ethernet Switch Controller with PCI Interface |
| DM9103EP | 制造商:DAVICOM 制造商全稱:DAVICOM 功能描述:Three Port Ethernet Switch Controller with PCI Interface |
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