LXT9762 Datasheet, PDF (57/78 Pages) Intel Corporation – Fast Ethernet 10/100 Multi-Port Transceiver with Serial MII

Fast Ethernet 10/100 Multi-Port Transceiver with Serial MII — LXT9762/9782
Figure 29. SMII Output Delay Test Setup
RXD
DUT
LXT9762/82
Ref Clk
t1 measurement
1ns trace delay
1 CMOS Load ~ 6pF
Figure 30. 100BASE-TX Transmit Timing
REFCLK
TXD
t1
t2
TPFO
Table 27. 100BASE-TX Transmit Timing Parameters
Parameter
Sym Min Typ¹ Max Units
Test Conditions
TXD setup to REFCLK rising edge
t1
1.5
–
–
ns
–
TXD hold from REFCLK rising edge
t2
1
–
–
ns
–
TXEN sampled to start of /J/
–
–
12
–
BT
Synchronous sampling of SMII
1. Typical values are at 25 °C and are for design aid only; not guaranteed and not subject to production testing.
Datasheet
57