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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
167
add_group command.
This field will remain at its current value
during a group-restart.
13
RESERVED
12
FE_TRL_STATUS
TRL specified in the last receive ICP
cell is a link that is “in_group”. If the
TRL received in the last ICP cell in not
“in_group”,, this bit is be cleared, and
the TRL remains with the last specified
valid TRL. During the period in which
the specified TRL is not “in_group”i, the
scheduling of the cells played out to
the ATM layer is not accurate and the
depth of the DCB buffers may drift and
cause DCB buffer overruns or
underruns. If on group startup, the
TRL is not detected to be “in_group”,
the group will not start up.
11
GROUP_TIMING_
ERROR
Group timing error. The FE IMA
transmit clock mode does not match
the NE transmit clock mode.
10
RESERVED
9
PM_ADJUST_DEL
Y_INT
PM adjust_delay procedure done
interrupt. The adjust_delay procedure
invoked by the PM command has
successfully finished or aborted.
FE TRL Interrupt.
TheFE_TRL_STATUS bit has changed
state.
Group timing interrupt. The the
GROUP_TIMING_ERROR has
changed state.
Startup-Ack Timeout: The FE fails to
transition into the STARTUP-ACK state
prior to the NE timing out.
GSM fails to come out of Insufficient-
links state during a group start-up
procedure before the relevant timer
8
FE_TRL_INT
7
GRP_TIMING_INT
6
FE_TIMEOUT_INT
5
GR_TIMEOUT_INT