AC Timing Specifications
81
CP Timing Specifications This section describes the timing for the following CP interfaces:
• DS1/DS3
• 10/100 Ethernet
• Gigabit Ethernet
• OC-3
• OC-12
DS1/DS3 Timing Specifications
The DS1/DS3 interface timing is shown in Figure 14 and described in Table 38.
Figure 14 DS1/DS3 Ethernet Timing Diagram
Cycle 2
Cycle 3
Cycle 4
Cycle 5
Cycle 1
CPn_0 (TCLK)
CPn_2/3 (Tx)
T
cdt
T
cdo
Cycle 5
Cycle 2
Cycle 3
Cycle 4
CPn_1 (RCLK)
CPn_4/5 (Rx)
T
cdr
T
T
cds
cdh
Table 38 DS1/DS3 Ethernet Timing Description
SYMBOL PARAMETER MIN
TYP
MAX
UNIT
ns
Tcdt
Tcdo
Tcdr
DS1/DS3 Transmit Cycle Time
647/22.4
DS1/DS3 Output Time
3.0/3.0
400/15.0 ns
ns
DS1/DS3 Receive Cycle Time
647/22.4
03
FREESCALE [ Freescale ]
