RXS RapidIO Switches
FEATURES
• High performance low latency switching
- 600Gbps non-blocking fabric switching
- Deterministic low latency
- ~100ns port-to-port latency
- Schedulers to optimize traffic flow
through fabric
- Three buffer modes–cut-through, store-
through, and store-and-forward operation–
optimize packet transfer to minimize packet
latency and preserve fabric bandwidth
- High performance hardware multicast
supporting 256 Multicast Groups per port
- Performance monitoring on individual ports
• Port flexibility fulfills multiple I/O bandwidth
requirements:
- Up to twelve 50Gbps or twenty-four 25Gbps
ports
- Lane frequency configuration from 12.5 Gbps
to 1.25 Gbps
- Support for mixed speed and width
configurations
• Error management
- Extensive event detection
- Selectable notification methods
- Packet capture
- Hardware support of fault isolation to prevent
error-induced congestion
- Hot swap support for recovery from errors
- Event simulation to simplify software/system
verification
• Interoperability
- RapidIO
®
interconnect (Revision 3.2 compliant)
and prior specifications
- Lane training and retraining by hardware
- Lane reversal and lane polarity inversion
High Performance Fabric Switching
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The RXS 10xN family delivers up to 600Gbps fabric switching ideal for mobile infra-
structure applications such as 4G+/5G baseband modems, C-RAN, and mobile edge
computing. The switch configurations include a 24-port 48-lane (RXS2448) switch and
a 16-port 32-lane (RXS1632) switch. These RapidIO
®
products continue the tradition
of delivering the lowest latency (~100ns) through a flexible non-blocking fabric opti-
mized for bandwidth and power (Gbps/W). The RXS family excels at interconnecting
heterogeneous processing nodes as demonstrated in mobile infrastructure, mission
critical applications (VITA), industrial control (PICMG), and within data center com-
puting such as data analytics and high performance computing.
IDT’s RXS2448 and RXS1632 switches are ideal for heterogeneous computing ap-
plications. Applications such as 5G baseband modems, data analytic appliances,
and video infrastructure require a true low latency fabric to interconnect OEM ASIC,
FPGA, SOC, GPU, CPU and NPU functions seamlessly. The RXS family provides a
switch fabric that provides low latency transport that scales from local on-board
fabric computing to larger rack-scale data center switching.
RXS RAPIDIO SWITCHES PRODUCT BRIEF
1
RXS RapidIO Switches
KEY BENEFITS
• 50Gbps ports for heterogeneous computing
• Scalable to trillions of nodes
• Low system power per gigabit of data
• Fully backward compatible with prior
RapidIO deployments
MARKETS & APPLICATIONS
• Mobile infrastructure including basestation,
C-RAN, and mobile edge compute
• Data center for data analytics, and high
performance computing (HPC)
• Aerospace
• Industrial control
• Mission critical (VITA, PICMG)
• Video infrastructure including conferencing,
broadcast, imaging, trans-/en-coding
SPECIFICATIONS
RXS2448:
24 ports, 48 lanes
33 x 33 mm 1024-FCBGA
RXS1632:
16 ports, 32 lanes
29 x 29 mm 784-FCBGA
Rated for commercial and industrial temperatures
MAC Layer +
Control
Processor
x4 S-RIO
Typical Applications
The RXS switching benefits for a wireless application include:
• Very low latency interconnect to meet 5G wireless latency requirements
• Best performance to power ratio allows unprecedented compute density to enable 4G and
5G systems
• Switched architecture allows highly scalable system for micro and macro BT
implementations
• Carrier-grade SerDes technology enables backplane-based modular systems and system
scaling by inter-chassis cabling
Antenna Interface
CPRI/OBSAI
x4 S-RIO
Backplane
FPGA or ASIC
OFDMA PHY
Processing
IDT Clock
156.25MHz
x4 S-RIO
RXS RapidIO
Switch
x4 S-RIO
S-RIO Gen3
DSP
x4 S-RIO
S-RIO Gen3
DSP
S-RIO Gen3
DSP
x4 S-RIO
x4 S-RIO
S-RIO Gen3
DSP
The RXS switching benefits for a high performance computing application include:
• Highly efficient protocol offers high throughput through the switch fabric
• Supports any topology for a highly scalable system
• Uses both messaging and remote memory access semantics
• Very low latency switching to allow for shorter data processing
• Low CPU utilization consumption allowing more CPU execution for processing tasks
Top of Rack Switch
IDT Clock
156.25MHz
RapidIO
NIC
RXS RapidIO
Switch
x4
S-RIO
RapidIO
NIC
RapidIO
NIC
To request samples, download documentation, or learn more, visit:
idt.com/go/10xN
IDT and the IDT Logo are registered trademarks or trademarks of Integrated Device Technology, Inc.,
in the United States and other countries. All other trademarks are the property of their respective
owners. © 2016. Integrated Device Technology, Inc. All Rights Reserved.
PB_RapidIO-10XN_REVA1_0217
RXS RAPIDIO SWITCHES PRODUCT BRIEF
2
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