PMC PM3390 Datasheet

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.

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: [phone]
Fax: [phone]

EXACT
Ring 4-7

EXACT
Ring 12-15

EXACT Bus

EXACT Bus

EXACT Bus

To order documentation,
send email to:
[e-mail]
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:
[e-mail]

PMC-980237 (R5)
 1999 PMC-Sierra, Inc.
September, 1999
EXACT is a trademark of
PMC-Sierra, Inc.