
Micrel, Inc.
KSZ8842-PMQL/PMBL
October 2007
112
M9999-100207-1.5
Auto Negotiation Timing
TX+/TX-
FLP
Burst
FLP
Burst
t
FLPW
t
BTB
Clock
Pulse
Clock
Pulse
Data
Pulse
Data
Pulse
t
PW
t
PW
t
CTD
t
CTC
Figure 13. Auto-Negotiation Timing
Timing Parameter
Description
Min
Typ
Max
Unit
tBTB
FLP burst to FLP burst
8
16
24
ms
tFLPW
FLP burst width
2
ms
tPW
Clock/Data pulse width
100
ns
tCTD
Clock pulse to data pulse
55.5
64
69.5
s
tCTC
Clock pulse to clock pulse
111
128
139
s
Number of Clock/Data pulses
per burst
17
33
Table 16. Auto Negotiation Parameters