S/UNI-IMA-4 Telecom Standard Product Data Sheet
Released
WORD
BIT
DATA FIELD
DESCRIPTION
23:22
TX_M
Transmit IMA frame length (M). Used by TIMA
in the transmit IMA operation.
“00”: M = 32
“01”: M = 64
“10”: M = 128
“11”: M = 256
21:16
15:8
7
P_TX
Minimum number of active TX links required in
the group in order for the group to be
operational.
TX End-to-end channel. This data field is used
by RIPP to generate the end-to-end channel
field in the outgoing ICP cells.
Transmit clock mode.
“0”: ITC mode.
TX_END_CHANNEL
TX_CLK_MODE
“1”: CTC mode.
This field is used in the outgoing TX ICP cells.
Note the actual clock mode used by TIMA may
differ from this. After a group is added, this
field should not be changed, unless a group
restart is to be issued.
6:0
RESERVED
2
31:25
24
RESERVED
RX_IMA_ID_CFG_EN
This bit selects whether the IMA ID value used
in the RX direction should be configured by
PM or captured from incoming ICP cells.
‘0’: IMA ID captured from ICP cells and saved
in context memory (RX_IMA_ID_CAP).
‘1’: IMA ID configured by PM in the
RX_IMA_ID_CFG field in the configuration
memory.
23:16
15:14
13:8
RX_IMA_ID_CFG
RESERVED
P_RX
RX IMA ID value programmed by PM.
Minimum number of active RX links required in
the group in order for the group to be
operational.
7:4
Reserved
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2020889, Issue 2
156
PMC [ PMC-SIERRA, INC ]
