VITESSE
SEMICONDUCTOR CORPORATION
Data Sheet
VSC880
Features
• 16x16 Synchronous Serial Crosspoint Switch
• Serial Data Rates: 2.0Gb/s
• 32Gb/s Aggregate Data Bandwidth
• Parallel Switches Can Increase Data Bandwidth in
Multiples of 32Gb/s
• Designed in Conjunction with the VSC870
Backplane Transceiver
• Automatic Word and Cell Synchronization to the
Transceiver
• Two Modes of Operation: Distributed Control
Self-routing
Packet Mode
and Central Control
Cell Mode
• Multicast Supported in All Modes
High Performance 16x16
Serial Crosspoint Switch
• Supports Variable Length Packets in Packet
Mode
• Built-in Flow Control Channel in Packet Mode
• Supports Cell Synchronization in Cell Mode
• Parallel CPU Interface and Parallel Switch
Configuration Interface
• Loopback, Built-in Self Test and Scan Functions
• 5V Tolerant TTL Inputs
• Dual 3.3V/2.5V or Dual 3.3V/2.0V Power
Supplies
• Serial Port Quadrants Can be Powered Down
• Available in 304 BGA Package
VSC880 Block Diagram
Serial Port (16x)
TXS+/TXS-
Switch Matrix
Parallel
to
Serial
VSCTE
VSCIPNC
VSCOPNC
MEN
FACLPBK
CMODE
TESTEN
SCANIN
SCANOUT
Port
Logic
RXS+/RXS-
DRU
Serial
to
Parallel
WCLK
REFCLK
TCLKEN
LOCKDET
CCLK
RESET
BSTLPBK
BSTEN
BSTRST
BSTPASS
Arbitration Logic
and Switch Control
Registers
CEN
DATA[15:0]
FI[3:0]
WEN
CMU
Clock
Gen
ADDR[5:0]
Status and
Control Registers
CDATA[7:0]
CWEN
CSEL
INT
RESYNEN
BIST Logic
G52191-0, Rev 4.2
01/05/01
©
VITESSE
SEMICONDUCTOR CORPORATION
• 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com
Internet: www.vitesse.com
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