VSC6134
Datasheet
4.2.6
SONET/SDH Serial Interface—Receive Interface (Overhead Extract)
This section contains the SONET/SDH serial interface timing information for the receive interface
(overhead extract).
Figure 82. Serial-Interface Receive Data Timing
T
CLKP
T
CLKW
ADSDHOHCLK
DRSDHOHCLK
T
DFSO
ADRXSDHOHFS
DRRXSDHOHFS
ADRXSDHOHD
DRRXSDHOHD
T
DDO
Table 439. Receive Interface
Symbol
TCLKP
TCLKW
TDFSO
TDDO
Parameter
Minimum
Typical
578.70
289.35
Unit
ns
Clock period(1)
Clock pulse width(1)
ns
Arrival before rising clock edge
Arrival before rising clock edge
50
50
ns
ns
1. Some variations are seen due to internal clock gapping during FEC mode.
395 of 438
VMDS-10185 Revision 4.0
July 2006
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
