KSZ9021GN TR Micrel Inc, KSZ9021GN TR Datasheet - Page 45
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KSZ9021GN TR
Manufacturer Part Number
KSZ9021GN TR
Description
Specifications: Number of Drivers/Receivers: 8/8 ; Type: Transceiver ; Voltage - Supply: 3.135 V ~ 3.465 V ; Package / Case: 64-VFQFN Exposed Pad ; Packaging: Tape & Reel (TR) ; Protocol: Gigabit Ethernet ; Lead Free Status: Lead Free ; RoHS Stat
Manufacturer
Micrel Inc
Datasheet
1.KSZ9021GN_TR.pdf
(53 pages)
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Micrel, Inc.
GMII Receive Timing
September 2010
Timing Parameter
1000Base-T
t
t
t
t
t
t
t
cyc
su
hd
hi
lo
r
f
Description
RX_CLK period
RX_DV, RXD[7:0], RX_ER setup time to
rising edge of RX_CLK
RX_DV, RXD[7:0], RX_ER hold time from
rising edge of RX_CLK
RX_CLK high pulse width
RX_CLK low pulse width
RX_CLK rise time
RX_CLK fall time
Figure 7. GMII Receive Timing – Data Input to MAC
Table 10. GMII Receive Timing Parameters
45
Min
7.5
2.5
0.5
2.5
2.5
Typ
8.0
Max
8.5
1.0
1.0
Unit
ns
ns
ns
ns
ns
ns
ns
M9999-091010-1.1
KSZ9021GN
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