PMC-Sierra, Inc.
PRELIMINARY
PM5381 S/UNI-2488
DATASHEET
PMC-2000489
ISSUE 1
SATURN USER NETWORK INTERFACE FOR 2488 MBIT/S
Register 0754H: TCFP Transmit Cell/Packet Counter (LSB)
Bit
Type
Function
Default
Bit 15
to
R
TX_CELL[15:0]
XXXX
Bit 0
Register 0755H: TCFP Transmit Cell/Packet Counter (MSB)
Bit
Type
Function
Default
Bit 15
to
R
TX_CELL[31:16]
XXXX
Bit 0
TX_CELL[31:0]:
The TX_CELL[31:0] bits indicate the number of cells or non-aborted packets transmitted to
the TCFP egress stream during the last accumulation interval. ATM Idle cells, HDLC flags,
and HDLC Abort bytes inserted into the transmission stream are not counted.
A write to any one of the TCFP Transmit Cell/Packet Counter registers loads the registers
with the current counter value and resets the internal 32 bit counter to 1 or 0. The counter
reset value is dependent on if there was a count event during the transfer of the count to the
Transmit Cell/Packet Counter registers. The counter should be polled regularly to avoid
saturating.
To allow for synchronization update with all other blocks, register 0000H can be written to
initiate a global performance counter update.
Proprietary and Confidentail to PMC-Sierra Inc., and for its Customer’s Internal Use
333
PMC [ PMC-SIERRA, INC ]
