PM7375-SC datasheet(66/430 Pages) PMC

66 / 430 page

PM7375 LASAR-155

DATA SHEET

PMC-931127

ISSUE 6

LOCAL ATM SAR & PHYSICAL LAYER

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

9.5

Connection Parameter Store

The Connection Parameter Store (COPS) block provides the internal VC parameter

storage for both the 128 receive VCs and 128 transmit VCs. The COPS block

provides VC parameter access to the RALP, TATS and TALP blocks. In addition,

indirect access to the parameter memory space is also provided to the

microprocessor and PCI Host.

9.6

SAR Performance Monitor

The SAR Performance Monitor (SAR PMON) block interfaces directly to the RALP

and PCID blocks and accumulates the following statistics:

ATM Cell unprovisioned VPI/VCI errors

ATM Cell CRC-10 errors

Receive CPAAL5_PDU Invalid Common Part Indicator errors

Receive CPAAL5_PDU Invalid SDU Length errors

Receive CPAAL5_PDU CRC-32 errors

Receive CPAAL5_PDU Oversize PDU errors

Receive CPAAL5_PDU Abort errors

Receive CPAAL5_PDU Count

Receive Buffer errors

Transmit CPAAL5_PDU Oversize SDU errors

Transmit CPAAL5_PDU Count

Counts are accumulated in saturating counters. ATM Cell counters are sized such

that they can be polled once per second. Packet registers are sized such that they

can be polled once per second given that every CPAAL5_PDU is in error and the

average packet size is 8 cells. If CPAAL5_PDU characteristics are different and

exact CPAAL5_PDU counts must be maintained, the user must poll every 125 ms.

When the RACP block declared loss of cell delineation (LCD), no receive statistics

are accumulated.

The user can indicate the end of an accumulation interval by writing to the

LASAR-155 Master Reset / Load Meters register. The write will transfer the current

counter values into visible registers and will reset the counters to begin

accumulating error events for the next interval. Writing to the LASAR-155 Master

Reset / Load Meters register initiates transfers for all counters in all blocks (i.e.

RSOP, RLOP, RPOP, RACP, TACP and SAR PMON).

PM7375-SC Datasheet(PDF) 66 Page - PMC-Sierra, Inc