S/UNI®-ATLAS-3200 Telecom Standard Product Data Sheet
Preliminary
COSFULLI
The Change of State FIFO Full Interrupt bit (COSFULLI) indicates that the Change of State
FIFO is full. When logic 1, the COSFULLI indicates that the Change of State FIFO is full,
and no more change of state notifications can be written into the FIFO. This suspends a
background process until FIFO space becomes free. It is the responsibility of the
management software to ensure this FIFO is read often enough to ensure the notification of
changes of state are compliant with Bellcore and ITU standards. This bit is cleared when this
register is read.
XCOSI
The Excessive Change of State FIFO Interrupt bit (XCOSI) indicates that the Change of
State FIFO is half-full. When logic 1, the XCOSI indicates that the Change of State FIFO is
half-full with changes of connection state information. This indicates that the Change of
State FIFO should be read quickly to avoid the Change of State FIFO from becoming full. It
is the responsibility of the management software to ensure the Change of State FIFO is read
often enough to ensure the notification of changes of state are compliant with Bellcore and
ITU standards. This bit is cleared when this register is read.
COSI
The Change of State Interrupt bit (COSI) indicates that the Change of State FIFO has become
non-empty.
CROFULLI
The Count Rollover FIFO Full Interrupt bit (CROFULLI) indicates that the Count Rollover
FIFO is full. When logic 1, the CROFULLI indicates that the Count Rollover FIFO is full,
and no more rollover notifications can be written into the FIFO. This causes the counts to
retain their MSBs high until room is made in the Count Rollover FIFO.
XCROI
The Excessive Count Rollover FIFO Interrupt bit (XCROI) indicates that the Count
Rollover FIFO is half-full. This indicates that the Count Rollover FIFO should be read
quickly to avoid it becoming full.
CROI
The Count Rollover FIFO Interrupt bit (CROI) indicates that the Count Rollover FIFO has
become non-empty.
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-1990553, Issue 4
159
PMC [ PMC-SIERRA, INC ]
