S/UNI-IMA-4 Telecom Standard Product Data Sheet
Released
RIPP RX Link Context Record Memory
Purpose: Contains the current state machine states and status information for the corresponding
RX 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 internally cleared by RIPP during group restart.
Table 14 RIPP RX Link Context Record structure
WORD
BIT
DATA FIELD
DESCRIPTION
0
31
RX_LINK_EN
Flag bit indicating if 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.
30:25
RX_LSM
RX Link state machine state.
“000000”: START_UP, No M has been
negotiated yet.
“000010”: DELETED, waiting for FE
“000100”: DELETED, waiting for DCB underrun
“000110”: UNUSABLE_NO_LID (report to FE
as Not_In_Group)
“001000”: UNUSABLE
“001010”: UNUSABLE, waiting for DCB
underrun
“001100”: Blocking, waiting for FE
“110000”: USABLE
“110010”: USABLE, waiting for data in DCB to
be played out, reporting USABLE.
“110011”: USABLE, waiting for FE
“110100”: ACTIVE, waiting for RX cell reader to
become active, reporting USABLE.
“110110”: ACTIVE, waiting for the global
synchronization event to report ACTIVE to the
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2020889, Issue 2
176
PMC [ PMC-SIERRA, INC ]
