PMC-Sierra, Inc.
PRELIMINARY
PM5381 S/UNI-2488
DATASHEET
PMC-2000489
ISSUE 1
SATURN USER NETWORK INTERFACE FOR 2488 MBIT/S
Register 077EH: TXSDQ FIFO Cells and Packets Dropped Aggregate Count
Bit
Type
Function
Default
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
DCOUNT[15]
DCOUNT[14]
DCOUNT[13]
DCOUNT[12]
DCOUNT[11]
DCOUNT[10]
DCOUNT[9]
DCOUNT[8]
DCOUNT[7]
DCOUNT[6]
DCOUNT[5]
DCOUNT[4]
DCOUNT[3]
DCOUNT[2]
DCOUNT[1]
DCOUNT[0]
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Bit 8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
DCOUNT[15:0]:
These bits display the aggregate count of all the POS packets and ATM cells that are
dropped by the TXSDQ due to FIFO overflows. This register is latched when register 0000H
is written to for a global performance monitor update. After the count is latched into the
register, the internal counter is reset to 0, and starts counting again. When this counter
reaches it’s maximum count, it holds the value, and does not roll over.
Proprietary and Confidentail to PMC-Sierra Inc., and for its Customer’s Internal Use
362
PMC [ PMC-SIERRA, INC ]
