PM7351-BI データシートの表示（PDF） - PMC-Sierra

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PM7351-BI

OCTAL SERIAL LINK MULTIPLEXER

PMC-Sierra 

RELEASED

DATA SHEET

PMC-1980582

ISSUE 5

PM7351 S/UNI-VORTEX

OCTAL SERIAL LINK MULTIPLEXER

1 FEATURES

• Integrated analog/digital device that interfaces a high speed parallel bus to 8

bidirectional data streams, each transported over a high speed Low Voltage

Differential Signal (LVDS) serial link.

• Works with its sister device, the S/UNI-DUPLEX, to satisfy a full set of system

level requirements for backplane interconnect:

• Transports user data by providing the inter-card data-path.

• Inter-processor communication by providing an integrated inter-card

control channel.

• Exchanges flow control information (back-pressure) to prevent data

loss.

• Provides embedded command and control signals across the

backplane: system reset, error indications, protection switching

commands, etc.

• Clock/timing distribution (system clocks as well as reference clocks

such as 8 kHz timing references).

• Fault detection, redundancy, protection switching, and

inserting/removing cards while the system is running (hot swap).

• Each S/UNI-VORTEX Interfaces to 8 S/UNI-DUPLEX devices (via the LVDS

links) to create a point-to-multipoint serial backplane architecture.

• Up to 16 S/UNI-VORTEX devices (interfacing to a maximum of 128 S/UNI-

DUPLEXs) can reside on a single system bus.

• In the LVDS receive direction: accepts cell streams from the 8 LVDS links,

multiplexing them into a single cell stream which is presented to the system

bus as a single Utopia L2 compatible PHY.

• In the LVDS transmit direction: receives cell streams from the bus master,

and routes the cells to the appropriate serial link.

• Cell read/write to the 8 LVDS links is available via the microprocessor port.

Provides optional hardware assisted CRC32 calculation across cells to create

an embedded inter-processor communication channel across the LVDS links.

• Optionally routes the embedded control channels from the 8 link's to/ from the

system bus.

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE 1

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