參數(shù)資料
型號: RTL8201
廠商: Electronic Theatre Controls, Inc.
英文描述: REALTEK SINGLE CHIP SINGLE PORT 10/100M FAST ETHERNET PHYCEIVER RTL8201BL
中文描述: 瑞昱單片單端口10/100M自適應快速以太網(wǎng)PHYCEIVER RTL8201BL
文件頁數(shù): 22/29頁
文件大?。?/td> 335K
代理商: RTL8201
RTL8201BL
2002-03-29
Rev.1.2
22
8.2 A.C. Characteristics
8.2.1 MII Timing of Transmission Cycle
Shown is an example transfer of a packet from MAC to PHY in MII interface.
Symbol
Description
t
1
TXCLK high pulse width
Minimum
14
Typical
20
Maximum
26
Unit
ns
100Mbps
10Mbps
100Mbps
10Mbps
100Mbps
10Mbps
100Mbps
140
14
140
10
200
20
200
40
400
24
260
26
260
ns
ns
ns
ns
ns
ns
t
2
TXCLK low pulse width
t
3
TXCLK period
t
4
TXEN, TXD[0:3] setup to TXCLK
rising edge
10Mbps
100Mbps
5
ns
ns
10
25
t
5
TXEN,
TXCLK rising edge
TXD[0:3]
hold
after
10Mbps
100Mbps
10Mbps
100Mbps
5
ns
ns
ns
ns
40
400
160
t
6
TXEN sampled to CRS high
t
7
TXEN sampled to CRS low
10Mbps
2000
ns
100Mbps
60
70
140
ns
t
8
Transmit latency
10Mbps
100Mbps
10Mbps
400
170
ns
ns
ns
100
t
9
Sampled TXEN inactive to end of
frame
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