Tsi578™
SERIAL RAPIDIO SWITCH
Features
Serial RapdIO Interfaces
• 80 Gbits/s aggregate bandwidth
• Low latency with cut-through capability
• Enhanced SerDes for low power solution
• RapidIO Interconnect Specification
(Revision 1.3) compliant
The Tundra Semiconductor Corporation (Tundra) Tsi578 is a third
generation RapidIO switch supporting 80 Gbits/s aggregate bandwidth.
The Tsi578 is part of a family of switches that enable customers to
develop systems with robust features and high performance at low cost.
The Tsi578 provides designers and architects with maximum scalability to
design the device into a wide range of applications. Flexible port
configurations can be selected through multiple port width and
frequency options.
• High performance hardware multicast
TM
Building on the industry leading Tsi568A Serial RapidIO Switch, the
The Tsi578 enhances system scalability and
performance through support for mixed port
configurations and extensive fabric
management features.
Tsi578 contains all the benefits of its predecessor plus enhances the fabric
switching capabilities through the addition of multicast, traffic
management through scheduling algorithms, programmable buffer
depth, and fabric performance monitoring to supervise and manage
traffic flow.
• Error management extensions
– Proactive issue notification
• Port flexibility fulfills multiple I/O
bandwidth requirements:
Block Diagram
SP0
(4x or 1x)
SP2
(4x or 1x)
– Up to eight 4x mode ports or sixteen 1x
mode ports
– Port frequency configuration to 1.25,
2.5, and 3.125 Gbits/s
Multicast
Engine
SP1
(1x only)
SP3
(1x only)
– Support for mixed speed and width
configurations
SP4
(4x or 1x)
SP6
(4x or 1x)
• Integrated high-speed, full-duplex SerDes
with 8b/10b encoding
SP5
SP7
(1x only)
(1x only)
– Receiver equalization, transmit pre-
emphasis, transmit voltage swing
– IEEE 1149.6 support
Enhanced Internal
Switching Fabric
SP8
(4x or 1x)
SP10
(4x or 1x)
– Lane swap to ease signal layout routing
• Enhanced non-blocking internal switching
fabric
SP9
(1x only)
SP11
(1x only)
– Traffic management through
scheduling algorithms
– Performance monitoring on individual
ports
SP12
(4x or 1x)
SP14
(4x or 1x)
Registers
– Programmable buffer depth
– Provisions to eliminate low priority
packet starvation
SP13
(1x only)
SP15
(1x only)
2
JTAG
I
C
80B803A_BK001_02
• Supports packet routing tables for 64,000
endpoints
Master and
Slave Devices
IEEE1149.6 Boundary Scan
Embedded applications further benefit from the ability to route packets to
over 64,000 endpoints through hierarchical lookup tables, independent
unicast and multicast routing mechanisms, and error management
extensions that provide proactive issue notification to the fabric controller. In
addition, the Tsi578 supports both in-band serial RapidIO access and out-of-
band access to the full fabric register set through the I2C interface.
Other Device Capabilities
• I2C Interface
– Master and Slave
– Configuration through register
initialization
• Hot Swappable Ports
– Enables use in field replaceable blade
applications