參數(shù)資料
型號: LAN8187
廠商: SMSC Corporation
英文描述: High-Performance MII and RMII 10/100 Ethernet PHY with HP Auto-MDIX
中文描述: 高性能信息產(chǎn)業(yè)部及RMII 10/100以太網(wǎng)PHY與HP Auto - MDIX功能
文件頁數(shù): 59/66頁
文件大?。?/td> 545K
代理商: LAN8187
High-Performance MII and RMII 10/100 Ethernet PHY with HP Auto-MDIX
Datasheet
SMSC LAN8187/LAN8187I
59
Revision 0.6 (02-24-06)
DATASHEET
6.3.2.2
10M RMII Transmit Timing
6.4
REF_CLK Timing
Table 6.8 10M RMII Receive Timing Values
PARAMETER
DESCRIPTION
MIN
TYP
MAX
UNITS
NOTES
T9.1
Raising edge of REF_CLK to
receive signals output valid
4
ns
T9.2
Raising edge of REF_CLK to
receive signals output not valid
2
ns
REF_CLK frequency
50
MHz
Figure 6.9 10M RMII Transmit Timing Diagram
Table 6.9 10M RMII Transmit Timing Values
PARAMETER
DESCRIPTION
MIN
TYP
MAX
UNITS
NOTES
T10.1
Transmit signals setup to
REF_CLK rising
4
ns
T10.2
Transmit signals hold after
REF_CLK rising
2
ns
Table 6.10 REF_CLK Timing Values
PARAMETER
DESCRIPTION
MIN
TYP
MAX
UNITS
NOTES
REF_CLK frequency
50
MHz
REF_CLK Frequency Drift
+/- 50
ppm
REF_CLK Duty Cycle
40
60
%
REF_CLK Jitter
150
psec
p-p – not RMS
REF_CLK
TXD[1:0]
TX_EN
T10.1
T10.2
Valid Data
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