PM7324 S/UNI-ATLAS
S/UNI-ATLAS
DATASHEET
PMC-1971154
ISSUE 7
S/UNI-ATM LAYER SOLUTION
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FEATURES
Point form summary of features.
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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 65536 VCs (virtual
connections).
Instantaneous bi-directional transfer rate of 800 Mbit/s supports a bi-directional cell transfer
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rate of 1.42x10 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).
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PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC AND FOR ITS CUSTOMERS’ INTERNAL USE
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PMC [ PMC-SIERRA, INC ]
