參數(shù)資料
型號(hào): DM9801A
文件頁(yè)數(shù): 52/60頁(yè)
文件大小: 605K
代理商: DM9801A
DM9801A
1M Home Phoneline Network Physical Layer Single Chip Transceiver
52
Final
Version: DM9801A-DS-F01
May 30, 2001
MII-1M Nibble Transmit Timing Diagram
TX_CLK
t
TX
h
t
2
t
TX
S
t
1
t
TX
pd
TXD [0:3],
TX_EN, TX_ER
CRS
HN+/-
MII-1M Nibble Transmit Timing Parameters
Symbol
t
TXs
Parameter
Min.
10
Typ.
Max.
Unit
ns
Conditions
TXD[0:3], TX_EN, TX_ER Setup
To TX_CLK High
TXD[0:3], TX_EN, TX_ER Hold
From TX_CLK High
TX_EN Sampled To CRS
Asserted
TX_EN Sampled To CRS De-
asserted
TX_EN Sampled To HN
+/-
Out
(Tx Latency)
t
TXh
10
ns
t
1
1.3
us
t
2
36.1
us
t
TXpd
1.3
us
MII-1M Receive Nibble Timing Diagram
RX_CLK
t
2
t
1
t
TX
pd
RXD [0:3],
RX_DV, RX_ER
CRS
HN+/-
t
RX
S
t
RX
h
t
4
t
3
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