PM7323 datasheet(13/219 Pages) PMC

13 / 219 page

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.

• Uses common synchronous SRAMs for maintaining per-VC information.

• Provides a standard 5 signal P1149.1 JTAG test port for boundary scan board

test purposes.

• Provides a generic 16-bit microprocessor bus interface for configuration,

control and status monitoring.

• Low power, 0.6 micron, +5 Volt CMOS technology.

• 240 copper slugged plastic quad flat pack (PQFP) package.

Policing

• Policing is performed for adherence to peak cell rate (PCR), cell delay

variation (CDV), sustained cell rate (SCR) and burst tolerance (BT). Violating

cells can be noted, dropped or have CLP bits set to 1.

• Policing performed by an approximation to the Generic Cell Rate Algorithm

(GCRA).

• Two policing instantiations available per VC. The policed cell streams can be

any combination of user cells, OAM cells, Resource Management, high

priority cells or low priority cells.

Cell Counting

• Counts maintained on a per VC basis include total low priority cells, total high

priority cells and cells violating the traffic contract.

• Performance management counts are maintained for forward and reverse

flows on a per VC basis: lost cells, misinserted cells, BIP-16 errors and the

number of Severely Errored Cell Blocks (SECB).

• Counts maintained for entire device include total cells input, total cells output,

OAM cells, cells discarded due to congestion, corrupted OAM cells, and cells

with unassigned/invalid VPI/VCIs.

PM7323 датащи(PDF) 13 Page - PMC-Sierra, Inc