S/UNI-IMA-4 Telecom Standard Product Data Sheet
Released
Word Bits
Parameter
ima_id
Description
23:16
IMA ID. This value is the group identifier, which is
programmed by the RIPP to allow the RDAT to validate this
value in the incoming ICP cells.
15:8
icp_offset
ICP Cell Offset. This value is programmed by the RIPP to
allow the RDAT to determine the frame boundary on this link,
and to validate this value in the incoming ICP cells.
7
6
Reserved.
ima_version
IMA Version supported for this link. This will factor into IMA
OAM label checking, if the label_disable bit is not set.
0 = IMA version 1.1
1 = IMA version 1.0
5
label_disable
lid
When set, the IMA OAM label within the incoming ICP cells
will not be used for validation of these cells. When not set, the
IMA OAM label must match that specified by the ima_version
field.
4:0
Logical identifier for this link. This value is programmed by the
RIPP to allow the RDAT to validate the incoming ICP cells.
1
31:10
9:0
Reserved.
dcb_thresh
Configured overrun threshold of the delay compensation
buffer for this link (in cells − IMA only). This must be less than
or equal to the value specified in MAX_DCB_DEPTH in the
Global configuration register. When this threshold is exceeded
(distance between the read and write pointers), the
overrun_latch error status will be set. This threshold is
programmed by the RIPP at link startup.
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2020889, Issue 2
219
PMC [ PMC-SIERRA, INC ]
