LAN8187I SMSC [SMSC Corporation], LAN8187I Datasheet - Page 59

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LAN8187I

Manufacturer Part Number
LAN8187I
Description
High-Performance MII and RMII 10/100 Ethernet PHY with HP Auto-MDIX
Manufacturer
SMSC [SMSC Corporation]
Datasheet

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High-Performance MII and RMII 10/100 Ethernet PHY with HP Auto-MDIX
Datasheet
SMSC LAN8187/LAN8187I
6.3.2.2
6.4
PARAMETER
PARAMETER
PARAMETER
T10.1
T10.2
T9.1
T9.2
10M RMII Transmit Timing
REF_CLK Timing
Raising edge of REF_CLK to
receive signals output valid
Raising edge of REF_CLK to
receive signals output not valid
REF_CLK frequency
Transmit signals setup to
REF_CLK rising
Transmit signals hold after
REF_CLK rising
REF_CLK frequency
REF_CLK Frequency Drift
REF_CLK Duty Cycle
REF_CLK Jitter
REF_CLK
TXD[1:0]
TX_EN
DESCRIPTION
DESCRIPTION
DESCRIPTION
Figure 6.9 10M RMII Transmit Timing Diagram
Table 6.9 10M RMII Transmit Timing Values
Table 6.8 10M RMII Receive Timing Values
Table 6.10 REF_CLK Timing Values
DATASHEET
59
MIN
MIN
MIN
40
2
4
T10.1
Valid Data
TYP
TYP
TYP
50
50
T10.2
+/- 50
MAX
MAX
MAX
150
60
4
2
UNITS
UNITS
UNITS
MHz
MHz
psec
ppm
ns
ns
ns
ns
%
Revision 0.6 (02-24-06)
p-p – not RMS
NOTES
NOTES
NOTES

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