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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)： | 17/61頁 |
| 文件大?。?/td> | 589K |
| 代理商： | DM9801E |
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DM9801
1M Home Phoneline Network Physical Layer Single Chip Transceiver
General Purpose Serial Interface
(continued)
Preliminary
Version: DM9801-DS-P02
March 20, 2000
17
STDCLK
SRDCLK
STXEN
STXDAT
CRS
SRXDAT
CLSN
SRDCLK becomes disabled as soon as CRS is asserted.
RXPKT- CRS Asserted
Figure 12
STDCLK
SRDCLK
STXEN
STXDAT
CRS
SRXDAT
CLSN
SRDCLK and STDCLK are unrelated to each other during this time. When a symbol has been received and decoded,
SRDCLK toggles in order to shift out the three to six bits encoded in the symbol. The middle portion of this diagram shows the
end of the preamble, followed by the SFD and the beginning of the datagram. CRS will fall after the last received symbol.
Once CRS falls, SRDCLK and STDCLK are toggled continuously for 97 cycles after which the DM9801 returns to the Idle
state.
RXPKT - SRDCLK Active and CRS Cleared
Figure 13
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