S/UNI-IMA-4 Telecom Standard Product Data Sheet
Released
TIMA Physical Link Context Record
o
o
o
o
ICP Offset.
Startup Cell Count = b’111.
Previous_LSI = b’111.
CTC_CELL_COUNT as appropriate (see registers section).
RDAT Link Context Record
Group Tag.
o
Also, while configuring a link, the context records that contain statistics and assorted context
should be initialized to zero. The following records should be initialized to zero:
o
o
o
o
o
o
RIPP TX Link Context Record.
RIPP RX Link Context Record.
RDAT Link Statistics Record.
RDAT Link Validation Record.
RXIDCC Link Data.
TXIDCC Link Data.
In addition, the msg_status bit in the RDAT Link Message Status Record must be cleared using
a read-modify-write operation. The other bits in the record contain link specific internal context
that must be maintained. There will be no contention for this memory between PM and the
RDAT if the operation is performed while the link is not enabled for TC or IMA operation.
Note: If a link is being re-added to a group, and there are currently no active links in the group
(i.e. the physical link was previously a member of the group, and was deleted), do not clear the
RXIDCC Link Data (as described above). In this special case, the RXIDCC record contains
import state information pertaining to the group that, if cleared, can prevent future link additions
from succeeding.
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2020889, Issue 2
277
PMC [ PMC-SIERRA, INC ]
