PM7350 データシートの表示（PDF） - PMC-Sierra, Inc
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PM7350 Datasheet PDF : 2 Pages
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PM7350 S/UNI-DUPLEX
Dual Serial Link, PHY Multiplexer
• 6 bit port ID prepended to each cell for
use by ATM layer to identify cell source
(1 of 32 PHYs or processor).
• Back-pressure provided by far end
(active link only) to prevent overflow of
far end receiver.
LVDS RECEIVE DIRECTION
• The LVDS link marked as "spare" is
monitored for errors, PHY cells are
discarded, microprocessor port cells
are accepted.
• Individual PHY and microprocessor
FIFO back-pressure indications are
sent to the far end to prevent FIFO
overflows. Per stream backpressure
prevents head-of-line blocking.
• Cells received from the active LVDS
link are forwarded to the appropriate
PHY, bit serial interface, or the
microprocessor port as specified by a
6 bit port ID added to each cell at the
far end device.
APPLICATIONS
• Single shelf or multi-shelf Digital
Subscriber Loop Access Multiplexer
(DSLAM).
• ATM/frame/IP switch or multiservice
access multiplexer.
• UMTS wireless base station and base
station controller.
TYPICAL APPLICATIONS
INTER-SHELF UTOPIA BUS EXTENSION
modem #1
modem #2
UTOPIA
Bus Master
PM7350
S/UNI-DUPLEX
4 Wire
LVDS
Bus Slave or
Bus Master
PM7350
S/UNI-DUPLEX
modem #N
MULTI-SHELF 1024 LINE ATM DSLAM
xDSL PHY
1
xDSL PHY
32
UTOPIA Line Cards
S/UNI-DUPLEX
processor
S/UNI-VORTEX
S/UNI-VORTEX
modem
1
modem
16
Clock/Data Line Cards
S/UNI-DUPLEX
processor
S/UNI-VORTEX
S/UNI-VORTEX
8 Links per S/UNI-VORTEX
processor
S/UNI-APEX
RAM
S/UNI-ATLAS
RAM
processor
S/UNI-APEX
RAM
S/UNI-ATLAS
RAM
S/UNI-PLUS
Common Card,
working
S/UNI-PLUS
Common Card,
spare
Head Office:
PMC-Sierra, Inc.
#105 - 8555 Baxter Place
Burnaby, B.C. V5A 4V7
Canada
Tel: 604.415.6000
Fax: 604.415.6200
To order documentation,
send email to:
document@pmc-sierra.com
or contact the head office,
Attn: Document Coordinator
All product documentation is available
on our web site at:
http://www.pmc-sierra.com
For corporate information,
send email to:
info@pmc-sierra.com
PMC-990147 (P2)
© 1999 PMC-Sierra, Inc.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC. AND FOR ITS CUSTOMERS’ INTERNAL USE
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