KSZ9021GN TR Micrel Inc, KSZ9021GN TR Datasheet - Page 46

• 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

Micrel, Inc.
MII Transmit Timing
September 2010
Timing Parameter
10Base-T
t
t
t
t
t
100Base-TX
t
t
t
t
t
cyc
su
hd
hi
lo
cyc
su
hd
hi
lo
Description
TX_CLK period
TX_EN, TXD[3:0], TX_ER setup time to
rising edge of TX_CLK
TX_EN, TXD[3:0], TX_ER hold time from
rising edge of TX_CLK
TX_CLK high pulse width
TX_CLK low pulse width
TX_CLK period
TX_EN, TXD[3:0], TX_ER setup time to
rising edge of TX_CLK
TX_EN, TXD[3:0], TX_ER hold time from
rising edge of TX_CLK
TX_CLK high pulse width
TX_CLK low pulse width
Figure 8. MII Transmit Timing – Data Input to PHY
Table 11. MII Transmit Timing Parameters
46
Min
140
140
15
15
14
14
0
0
Typ
400
40
Max
260
260
26
26
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
M9999-091010-1.1
KSZ9021GN