参数资料
型号: PM3390
厂商: PMC-SIERRA INC
元件分类: 通信及网络
英文描述: Octal EXACT⑩ Bus Switch Matrix
中文描述: SPECIALTY TELECOM CIRCUIT, PBGA352
封装: BGA-352
文件页数: 1/2页
文件大小: 33K
代理商: PM3390
PMC-980237 (R5)
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
1999 PMC-Sierra, Inc.
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 support 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 internal dataflow to
allow external flow control in systems that
do not use the EXACT Bus link protocol.
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-to-
box, 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 Switch Port
Controller.
PACKAGING
Provides a standard five signal
P1149.1 JTAG test port for boundary
scan board test purposes.
Implemented 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 Switches that Support
Combinations of 10/100/1000 Ports.
Multiprotocol Switch (Ethernet, ATM,
Packet Over SONET, FDDI, and TR)
Modular Ethernet Switches.
Fixed-configuration Ethernet Switches.
BLOCK DIAGRAM
8
×
EXACT
Input Ports
T
8
×
EXACT
Output Ports
T
T
T
T
S
I
X
X
R
Control
Interface
N
M
M
M
M
M
Management
Interface
E
E
4 Port
Expansion
Interface
Free List
Manager
Cell List
Manager
XRXD[9:0]
XRCLK
Per Port
Signals
XTXD[9:0]
XTCLK
Per Port
Signals
X
X
X
X
X
Expansion
Contol
JTAG
EXACT
8 Input
Buffers
Pipelined
Data
Mux
Pipelined
Data
Mux
Cell
Central
Store
EXACT
8 Output
Buffers
X
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