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參數(shù)資料
| 型號： | DM9801E |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 1M home Phonrline Network Physical Layer Single Chip Transceiver |
| 中文描述： | 100萬家庭Phonrline網(wǎng)絡(luò)物理層單芯片收發(fā)器 |
| 文件頁數(shù)： | 14/61頁 |
| 文件大?。?/td> | 589K |
| 代理商： | DM9801E |
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DM9801
1M Home Phoneline Network Physical Layer Single Chip Transceiver
14
Preliminary
Version: DM9801-DS-P02
March 20, 2000
MII Interface Transmit and Receive Timing Diagram
(continued)
TX_CLK
RX_CLK
TX_EN
TXD
CRS
RXD
COL
RX_DV
DATA
DATA
0
0
Once TX_EN is cleared, the last symbol gets encoded and transmitted, the looped-back data is presented back to the MAC,
and CRS falls. Once CRS falls, TX_CLK and RX_CLK toggles with a period of 933.3 ns for 22 clocks, after which the system
returns to the Idle State.
TXPKT – TX_EN Cleared
Figure 7
TX_CLK
RX_CLK
TX_EN
TXD
CRS
RXD
COL
RX_DV
5
0
0
D
DATA
0
COL will be asserted sometime after the preamble and SFD have been clocked in. TX_CLK and RX_CLK are then clocked
with a period 933.3 ns until CRS drops. TX_EN drops sometime after COL was asserted. CRS and COL are dropped after
more than 80 clocks. TX_CLK and RX_CLK keep toggling at 933.3 ns period for roughly another 25 clock cycles, when the
system returns to the Idle State.
TXPKT – COL Asserted
Figure 8
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相關(guān)代理商/技術(shù)參數(shù) |
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| DM9B | 功能描述:數(shù)字萬用表 4000 COUNT AUTO RoHS:否 制造商:Tektronix 產(chǎn)品:Multimeters 類型:Bench 準(zhǔn)確性:0.04 % 電壓范圍:2 V to 2 kV 電阻范圍: 電容范圍: 顯示計數(shù): 頻率:10 Hz to 45 Hz, 850 Hz to 1 MHz 測距: 真均方根值: 數(shù)據(jù)保持: |
| D-M9B | 制造商:SMC Corporation of America 功能描述:Sensor, solid state, direct mount, grommet connection, for MX/MH/CQ2/NCQ2/NCQ8 制造商:SMC 功能描述:2-Wire Auto Switch for 24Vdc Relay/PLC |
| D-M9BA | 制造商:SMC Corporation of America 功能描述:Autoswitch, water resistant, 2 wire, horizontal |
| D-M9BAL | 制造商:SMC Corporation of America 功能描述:AUTOSWITCH, DIRECT MT, SOLID STATE, GROMMET ENTRY, 3M LEADWIRE |
| D-M9BAVL | 制造商:SMC Corporation of America 功能描述:Autoswitch, water resistant, 2 wire, vertical |
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