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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
165
18:16
LSM_SYNC
Current state of LSM_SYNC state
machine, which is used to synchronize
LSM transition during group startup
and LASR procedure.
"000": IDLE
"001": LSM_SYNC_GETM (Group
parameter negotiation finished).
"010": LSM_SYNC_RX_USABLE (RX
ready to go to usable state, delay
evaluation needed).
"011":
LSM_SYNC_RX_ACTIVE_RDAT (RX
ready to start receiving, starting RDAT
and IDCC)
"100": LSM_SYNC_RX_ACTIVE (RX
ready to report ACTIVE to FE)
"101": LSM_SYNC_TX_ACTIVE (TX
ready to report active to FE)
Far-end GSM states. This is copied
from the group state field in the
incoming ICP cells
15:12
FE_GSM
11:6
NUM_TX_LINKS_A
CTIVE
Total number of tx links that are
currently in an active state.
5:0
NUM_RX_LINKS_
ACTIVE
Total number of rx links that are
currently in an active state.
1
31
GROUP_TIMER_E
N1
Group timer 1 enable. The enable bit is
set when the timer is loaded; it is
cleared when either a timeout occurs
or the timer is disabled.
30:28
RESERVED
27:24
GROUP_TIMER1
Group-level timer 1. Implemented as 4-
bit down counter. The counter is loaded
with the appropriate timeout value
when the timer is enabled, and
decrements on every timer tick, until it
reaches zero. A timeout event is