82546EB Datasheet, PDF (33/47 Pages) Intel Corporation – Dual Port Gigabit Ethernet Controller

Networking Silicon — 82546EB
Figure 8. Link Interface Rise/Fall Timing
2.0 V
0.8 V
TR
TF
4.6.2.2
Link Interface Transmit Timing
Figure 9. Transmit Interface Timing
TX_CLOCK
TX_DATA[9:0]
TSU
TH
Valid Data
TPERIOD
Table 15. Transmit Interface Timing
Symbol
TPERIOD
TSETUP
THOLD
TDUTY
Parameter
GTX_CLK period^a
TBI mode (1000 Mbps)
Data setup to rising GTX_CLK
Data hold from rising GRX_CLK
GTX_CLK duty cycle
a. GTX_CLK should have a 100 ppm tolerance.
Min
Typ
8
2.5
1.0
40
1.4V
Max
Unit
ns
ns
ns
60
%
Datasheet
27