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STANDARD PRODUCT
PM7323 RCMP-200
DATASHEET
PMC-960543
ISSUE 2
ROUTING CONTROL, MONITORING, & POLICING
200 MBPS
Proprietary and Confidential to PMC-Sierra, Inc.
and for its Customer’s Internal Use.
14
Pin Name
Type
Pin
No.
Feature
OPRTY
Tristate
116
The output parity (OPRTY) signals indicate the
parity of the ODAT[7:0] bus. Odd or even parity
selection can be made using a register bit.
OPRTY is updated on the rising edge of OFCLK.
When the Output Cell Interface is configured for
tristate operation using the OTSEN input,
tristating of the OPRTY output bus is controlled
by the ORDENB input.
OSOC
Tristate
117
The output start of cell (OSOC) signal marks the
start of cell on the ODAT[7:0] bus. When OSOC
is high, the first word of the cell structure is
present on the ODAT[7:0] stream. OSOC is
updated on the rising edge of OFCLK.
When the Output Cell Interface is configured for
tristate operation using the OTSEN input,
tristating of the OSOC output is controlled by the
ORDENB input.
OCA
Output
118
The active polarity of this signal is programmable
and defaults to active high.
OCA indicates when a cell is available in the
output FIFO. When asserted, the OCA signal
indicates that the output FIFO has at least one
cell available to be read. The OCA signal is
deasserted when the output FIFO contains four
or zero words available for the current cell.
Selection is made using the OCALEVEL0 bit in
the Output FIFO Configuration register. OCA is
updated on the rising edge of OFCLK.
OTSEN
Input
122
The tristate enable (OTSEN) signal allows tristate
control over the ODAT[7:0], OPRTY and OSOC
outputs. When OTSEN is high, the active low
read enable input, ORDENB, controls when the
ODAT[7:0], OPRTY and OSOC outputs are
driven. When OTSEN is low, the ODAT[7:0],
OPRTY and OSOC outputs are always driven.