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PM7328

ATM LAYER SOLUTION

PMC-Sierra 

STANDARD PRODUCT

DATASHEET

PMC-2010142

ISSUE 2

PM7328 S/UNI-ATLAS-1K800

ATM LAYER SOLUTION

1 FEATURES

• Monolithic single chip device which handles bi-directional ATM Layer

functions including VPI/VCI address translation, cell appending (ingress only),

cell rate policing (ingress only), per-connection counting and I.610 compliant

OAM requirements for 1024 VCs (virtual connections).

• Instantaneous bi-directional transfer rate of 800 Mbit/s supports a bi-

directional cell transfer rate of 1.42x106 cells/s (one STS-12c or four STS-3c).

• The Ingress input interface supports an 8 or 16 bit SCI-PHY interface using

direct addressing for up to 4 PHY devices (compatible with Utopia Level 1

cell-level handshaking) and Multi-PHY addressing for up to 32 PHY devices

(Utopia Level 2 compatible).

• The Ingress output interface supports an 8 or 16 bit SCI-PHY (52 – 64 byte

extended ATM cell with prepend/postpend) interface (compatible with Utopia

Level 1 cell-level handshaking) to a switch fabric.

• The Egress input interface supports an 8 or 16 bit extended cell format SCI-

PHY interface using direct addressing for up to 4 PHY devices (compatible

with Utopia Level 1 cell-level handshaking) and Multi-PHY addressing for up

to 32 PHY devices (Utopia Level 2 compatible).

• The Egress output interface supports an 8 or 16 bit extended cell format SCI-

PHY interface using direct addressing for up to 4 PHY devices (compatible

with Utopia Level 1 cell-level handshaking) and Multi-PHY addressing for up

to 32 PHY devices (Utopia Level 2 compatible).

• Compatible with a wide range of switching fabrics and traffic management

architectures including per-VC or per-PHY queuing.

• Highly flexible OAM-type cell and connection identification which can use

arbitrary PHYID/VPI/VCI values and/or cell appended bytes for connection

identification (N.B. this is an ingress function only). A direct lookup function is

provided in the egress direction. The direct lookup can use an arbitrary

header or prepend/postpend location.

• Ingress functionality includes a highly flexible search engine that covers the

entire PHYID/VPI/VCI address range, programmable dual leaky bucket

UPC/NPC, per-connection CLP0 and CLP1 cell counts (programmable),

OAM-PM termination, generation and monitoring, and OAM-FM termination,

generation and alarm generation (monitoring).

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC

1

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