82
CHAPTER 3: ELECTRICAL SPECIFICATIONS
Table 38 DS1/DS3 Ethernet Timing Description (continued)
SYMBOL PARAMETER
MIN
2.0
0
TYP
MAX
UNIT
ns
Tcds
Tcdh
DS1/DS3 Setup Time
DS1/DS3 Hold Time
ns
10/100 Ethernet Timing Specifications
The 10/100 Ethernet interface timing is shown in Figure 15 and described in Table 39.
Figure 15 10/100 Ethernet Timing Diagram
Cycle 2
Cycle 3
Cycle 4
Cycle 5
Cycle 1
CPn_0 (TCLK)
CPn_2/3/6 (Tx)
CPn_1/4/5 (Rx)
T
cet
T
ceo
T
T
ceh
ces
Table 39 10/100 Ethernet Timing Description
SYMBOL PARAMETER
MIN
TYP
MAX
UNIT
ns
Tcet
Tceo
Tces
Tceh
Transmit Cycle Time*
20
Output Time
Setup Time
Hold Time
3.0
2.0
0
15.0
ns
ns
ns
*
STD/Fast Ethernet
C3EN
FREESCALE [ Freescale ]
