PM7340 S/UNI-IMA-8
PRELIMINARY
INVERSE MULTIPLEXING OVER ATM
DATA SHEET
PMC-2001723
ISSUE 3
INVERSE MULTIPLEXING OVER ATM
Word Bits Parameter
Description
1
31:16 IMA Mode Stuff IMA mode: this field is indexed by the Physical
Event Count
Link tag and is used to store a continuously
running count of the number of Stuff Events
inserted on the link. It is maintained by the
transmit engine and is read by the PM. This field
should only be reset when the link is not enabled.
or TC Mode User
Cell Count (upper
word))
TC mode: this field is indexed by the TC tag
delivered by the IDCC and is used to store the
upper 16-bit word of a continuously running 32-
bit count of the total number of ATM user cells
sent on the link. It is maintained by the transmit
engine and is read by the PM. This field should
only be reset when the link is not enabled.
15:0 IMA mode Total IMA mode: this field is indexed by the Physical
User Cell Count Link tag and is used to store a continuously
running count of the number ATM user cells
or TC Mode User
transferred on the link. It is maintained by the
Cell Count (lower
transmit engine and is read by the PM. This field
word))
should only be reset when the link is not enabled.
TC mode: this field is indexed by the TC tag
delivered by the IDCC and is used to store the
lower 16-bit word of a continuously running 32-bit
count of the total number of ATM user cells sent
on the link. It is maintained by the transmit
engine and is read by the PM. This field should
only be reset when the link is not enabled.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
250
PMC [ PMC-SIERRA, INC ]
