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PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
PMC-Sierra,Inc.
Octal EXACT™ Bus Switch Matrix
PM3390
FEATURES
• Sixteen Gbit/s, protocol-independent
switching matrix expandable to 32 Gbit/s.
• Provides eight gigabit, full-duplex
EXACT™ Bus ports that each supp ort an
EXACT switch port controller.
• Provides non-blocking connection
between eight EXACT Bus (Ethernet
Switching, Access, Control, and
Termination) rings.
• Supports non-blocking connections
between sixteen EXACT Bus rings to
provide a system bandwidth of
32 Gbit/s using four PM3390 devices.
• Destination lookup table maps logical
EXACT ports to physical PM3390 ports.
Destination lookup table can be
dynamically allocated.
• Provides visibility into in ternal da taflow to
allow external flow control in systems that
do not use the EXACT Bus link protocol.
BLOCK DIAGRAM
• Each chip supports the EXACT Bus
Protocol, which is a 10-bit,
unidirectional insertion ring running at
125 MHz or 135 MHz.
• EXACT Bus ports allow simple box-tobox, card-to-card, or chip-to-chip
interconnect.
• 8B/10B EXACT Bus encoding is
compatible with Common Serialization
(SERDES) devices to allow serial
extension using coax or twinax cable.
• Management interface connects to an
off-chip microprocessor for access to
internal control registers.
COMPATIBILITY
• Interworks with the following EXACT
Chipset devices:
PM3370 Octal 10/100 Ethernet Switch
Port Controller with MII interfaces.
PM3380 Gigabit Ethernet Switc h Port
Controller.
PACKAGING
• Provides a standard five signal
P1149.1 JTAG test port for boundary
scan board test purposes.
• Implemen ted in low power 3.3 V,
CMOS technology.
• Available in a 352-pin Ball Grid Array
(BGA) package.
APPLICATIONS
• High Bandwidth (16 to 32 Gbit/s)
Ethernet S witches that Support
Combinatio ns of 10/100/ 1000 Ports.
• Multiprotocol Switch (Ethernet, ATM,
Packet Over SONET, FDDI, and TR)
• Modular Ethernet Switches.
• Fixed-configuration Ethernet Switches.
8×EXACT
Input Ports
XRXD[9:0]
XRCLK
Per Port
Signals
EXACT
8 Input
Buffers
JTAG
TDI
TDO
8×EXACT
Output Ports
Pipelined
Data
Mux
Free List
Manager
Control
Interface
XREFCK135
XREFCK125
INT
RESETI
NFLOW[3:0]
TCK
TMS
TRSTB
SYSCLK
Cell
Central
Store
Management
Interface
MI_RD
MI_WR
MI_ALE
MI_AD[15:0]
Cell List
Manager
Expansion
MI_CS
XFLOWI
Pipelined
Data
Mux
Contol
XSTATI
XSTATO
XFLOWO
XFRAMEI
XFRAMEO
EXACT
8 Output
Buffers
4 Port
Expansion
Interface
EXRXCLK
EXRXD[8:0]
XTXD[9:0]
XTCLK
Per Port
Signals
PMC-980237 (R5)
1999 PMC-Sierra, Inc.
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Octal EXACT™ Bus Switch Matrix
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
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TYPICAL APPLICATIONS
24 × 10/100 + 2 × 1000 WITH THREE GIGABIT BACKPLANE PORTS
PM3390
SERDES
CPU
SERDES
PM3390
Octal EXACT
Bus Switch
Matrix
PM3370
Octal 10/100
Ethernet
Switch Port
Controller
PM3370
Octal 10/100
Ethernet
Switch Port
Controller
PM3370
Octal 10/100
Ethernet
Switch Port
Controller
32 Gbit/s, 16-RING PM3390 EXPANSION CONFIGURATION
EXACT
Ring 0-3
EXACT
Ring 8-11
PM3390
Octal
EXACT Bus
Switch
Matrix
SERDES
PM3380
abit
Gi
Ethernet
Switch Port
Controller
SERDES
EXACT
0-3
Rin
PM3380
abit
Gi
Ethernet
Switch Port
Controller
SERDES
Head Office:
PMC-Sierra, Inc.
#105 - 8555 Baxter Place
Burnaby, B.C. V5A 4V7
Canada
Tel: 604.415.6000
Fax: 604.415.6200
EXACT
Ring 4-7
EXACT
Ring 12-15
EXACT Bus
EXACT Bus
EXACT Bus
To order documentation,
send email to:
document@pmc-sierra.com
or contact the head office,
Attn: Document Coordinator
PM3390
Octal
Switch
Matrix
PM3390
Octal
Switch
Matrix
PM3390
Octal
Switch
Matrix
EXACT
4-7
Rin
EXACT
8-11
Rin
EXACT Ring
12-15
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-980237 (R5)
1999 PMC-Sierra, Inc.
September, 1999
EXACT is a trademark of
PMC-Sierra, Inc.
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