Tsi400™
RapidIO-to-PCI/X Bus Bridge
Features
The Tsi400 Advantage
TM
The Tundra Semiconductor Corporation (Tundra) Tsi400 is a
RapidIO Interface
high-performance bus bridge that connects RapidIO devices to
multi-drop devices based on PCI and PCI-X (see Figure 1). RapidIO is
a new point-to-point, packet-switched interconnect protocol that meets
the needs of current and future embedded applications.
• 250 MHz (4 Gbit/s) or 500 MHz
(8 Gbit/s)
• Full-duplex, 8-bit data and 34-bit
addressing
• Supports mailbox messages
An advanced multithread queuing system (MQS) forms the core of the
Tsi400, as illustrated in Figure 1. The MQS translates RapidIO
transactions so that devices connected to the PCI/X Interface can
process them. The MQS performs the same transaction mapping from
its PCI/X Interface for devices connected directly, or indirectly, to its
RapidIO Interface.
• RapidIO Interconnect Specification 1.1
compliant
PCI/X Interface
• 50–133 MHz on a PCI-X bus
• 25–66 MHz on a PCI bus
• 32/64-bit data and addressing
Figure 1: Tsi400 Block Diagram
Eight
slave devices
CompactPCI
Hot Swap Silicon
• Transparent and non-transparent modes
of operation
• Supports multi-threading (four threads)
in PCI-X Interface
Hot Swap
Controller
2
I C
• PCI/X bus arbiter with support for seven
external masters
Configuration Registers
• CompactPCI Hot Swap Silicon
Transparent
Non-Transparent
compliant
• PCI Local Bus Specification (Rev. 2.2),
PCI-X Addendum (Re v .1.0a), and
PCI-to-PCI Bridge Specification
(Rev. 1.1) compliant
Multithread
Queuing
System
The Tsi400 connects RapidIO devices to
multi-drop devices based on PCI and
PCI-X.
Bus
Arbiter
Interrupt
Controller
Clock
Drivers
Other Device Capabilities
JTAG
• Supports tunneling of PCI/X transactions
80A7300_BK001_03
across a RapidIO switching fabric
2
• I C/EEPROM Interface
IEEE1149.1
boundary scan
Interrupt
pins
Eight
Seven external
clock drivers bus masters
• Interrupt controller that supports
RapidIO messages and PCI/X interrupts
When used in combination with a RapidIO switching fabric device,
such as the Tundra Tsi500 , the Tsi400 provides a seamless
• JTAG support (Boundary Scan)
TM
PCI/X-to-PCI/X connectivity across a RapidIO architecture (see
Figure 2). Investments in current PCI and PCI-X applications, are
therefore maintained, while new intra-system interconnects can be
based on the faster and more reliable, RapidIO technology.
© 2002 Tundra Semiconductor Corporation.
Document: 80A7300_FB001_05
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