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PRELIMINARY
INVERSE MULTIPLEXING OVER ATM
PM7340 S/UNI-IMA-8
DATA SHEET
PMC-2001723
ISSUE 3
INVERSE MULTIPLEXING OVER ATM
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
171
This bit is set internally by RIPP during
group start-up upon capturing the first
valid incoming ICP cells.
This field will remain at its current value
during a group-restart.
28
RESERVED
27:26
RX_M
Receive IMA frame length (M). This
parameter is captured from incoming
ICP cells during group-start-up
negotiation process, and later used by
RDAT in the receive IMA operation.
“00”: M = 32
“01”: M = 64
“10”: M = 128
“11”: M = 256
25:24
FE_SYM_MODE
Group symmetrical mode as indicated
by the FE in the latest ICP cell
analyzed
23:16
FE_IMA_OAM_LA
BEL
IMA OAM label value as indicated by
the FE in the latest ICP cell analyzed
15:8
RX_SCCI
Current RX SCCI value for the group.
This value is captured from the
incoming ICP cells and used to
determine whether the ICP cell should
be processed.
This field will remain at its current value
during a group-restart.
7:0
RX_IMA_ID
Stores the RX_IMA_ID. The value may
be copied from the RX_IMA_ID_CFG
field in the configuration memory if the
RX_IMA_ID_CFG_EN bit is set,
otherwise it is captured from the first
incoming ICP cell after the group is
added or restarted.
7
31:0
RX_PHY_VALID
32 bit vector in which each bit
corresponds to one RX physical link in