PM7311 pmc-sierra, PM7311 Datasheet - Page 192

• Manufacturer Part Number: PM7311
• Description: Freedm 84a1024l Assp Telecom Standard Datasheet
• Manufacturer: pmc-sierra

Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2021832, Issue 2
SYNCH_TRIB
SBIIP_LB
The SYNCH_TRIB bit is used to indicate whether the tributary is locked to the SBI SPE (i.e.
is in synchronous mode). If this bit is set then the tributary is locked. If this bit is not set, then
the tributary is free to float. This bit will default to off.
The SBIIP loop back bit selects the SBIIP extract loop back bus as the source for this
tributary. When SBIIP_LB is set to 1 LB_EXT_DATA, LB_EXT_LINKRATE, etc. are used
as the input data stream for the selected tributary. When SBIIP_LB is set to 0 the insert
SBIIP bus is the source for the selected tributary. Loop backs are only possible with floating
tributaries, i.e. cannot be used with synchronous T1 and E1 tributaries.
Note: Any write to a Tributary Control RAM location for a tributary will generate a
configuration reset on that tributary, irrespective of whether the data written to the tributary
control RAM location is unchanged from the previous value.
FREEDM 84A1024L ASSP Telecom Standard Product Data Sheet
Released
192