S/UNI-IMA-4 Telecom Standard Product Data Sheet
Released
RIPP TX Link Context Record Memory
Purpose: Contains the current state machine states and status information for the corresponding
TX links.
Usage: IMA Groups only.
Maintained by: RIPP.
Record Size: 2 32-bit words.
MEM_ADDR = Area_base_address + physical link number * 0x2 + Word Offset
Unless otherwise specified, all the data fields and the reserved fields should be cleared (to all
‘0’s) by PM prior to adding the link, and will be internally cleared by RIPP during a group-
restart.
Table 13 RIPP TX Link Context Record Structure
WORD
BIT
DATA FIELD
DESCRIPTION
0
31
TX_LINK_EN
Flag bit indicating whether the link is enabled
or not.
“0”: not enabled, link in UNASSIGNED state
“1: enabled.
This field is set by RIPP during add_link or
add_group command processing. It is cleared
by RIPP upon finishing deleting the link. It
may be polled by PM to determine the
progress of link addition or deletion.
This field will remain at its current value
during a group-restart.
30:27
TX_LSM
TX Link state machine state.
“0000”: DELETED(NOT_IN_GROUP)
“0010”: UNUSABLE
“1100”: USABLE
“1110”: ACTIVE
Others: reserved
This field is cleared by PM during link record
initialization.
26:7
6:4
RESERVED
FE_RX_LSM
Far end RX LSM state for the link. This is
copied from the appropriate TX LSM state
field in the incoming ICP cells.
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2020889, Issue 2
173
PMC [ PMC-SIERRA, INC ]
